Climatological Report (Monthly)
Issued by NWS Marquette, MI

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

000
CXUS53 KMQT 240201
CLMMQT

CLIMATE REPORT
NATIONAL WEATHER SERVICE MARQUETTE MI
1000 PM EDT THU APR 23 2015

...WEST AND CENTRAL UPPER MICHIGAN CLIMATE SUMMARY FOR 2014...

...TOP FIVE COLDEST YEAR AT MOST PLACES...
...WET WITH ABOVE NORMAL CALENDAR YEAR SNOWFALL...
...GREAT LAKES WATER LEVELS RISE ABOVE NORMAL...

A NORTHWEST FLOW OF CANADIAN AIR BETWEEN A PERSISTENT UPPER TROUGH
IN CENTRAL AND EASTERN NORTH AMERICA AND A RIDGE OVER THE WEST
RESPONSIBLE FOR GROWING DROUGHT IN CALIFORNIA WAS THE DOMINANT
INFLUENCE ON UPPER MICHIGAN WEATHER DURING 2014. THE RESULT WAS A
TOP FIVE COLDEST YEAR AT MOST PLACES...WITH ANNUAL AVERAGE
TEMPERATURES RUNNING BETWEEN 3 AND 5 DEGREES BELOW THE 30-YEAR
NORMAL. IN FACT...RESIDENTS OF MANISTIQUE...NEWBERRY...IRON MOUNTAIN
AND IRONWOOD ALL ENDURED THE COLDEST YEAR ON RECORD AT THOSE
LOCATIONS.

ANNUAL PRECIPITATION IN 2014 ALSO TENDED TO BE WELL ABOVE NORMAL DUE
TO OFTEN LONG ABSENCES OF UPPER RIDGING OVER EASTERN NORTH AMERICA
THAT WOULD OTHERWISE HAVE SUPPRESSED THE TRACK OF DEEPER LOW
PRESSURE SYSTEMS THROUGH THE AREA. ANNUAL PRECIPITATION AT THE
WETTER LOCATIONS NEAR LAKE SUPERIOR EXCEEDED 40 OR EVEN 45 INCHES...
10 INCHES OR MORE ABOVE NORMAL AT SOME SITES. EVEN OVER THE NORMALLY
DRIER SOUTH CENTRAL UPPER PENINSULA...30 TO 35 INCHES OF
PRECIPITATION WAS THE RULE IN 2014.

SINCE MUCH OF THIS PRECIPITATION FELL AS SNOW DURING THE COLDER
SEASONS...CALENDAR YEAR SNOWFALL ALSO RAN WELL ABOVE NORMAL. THE
2014 SNOW TOTALS EXCEEDED 300 INCHES AT A FEW SPOTS OVER THE HIGHER
TERRAIN OF THE NORTH CENTRAL AND WEST. ALTHOUGH LESS THAN 100 INCHES
OF SNOW FELL OVER THE SOUTH CENTRAL FROM IRON MOUNTAIN AND MENOMINEE
TO ESCANABA AND MANISTIQUE...THE 2014 TOTALS WERE WELL ABOVE NORMAL
IN THIS AREA AS WELL.

THE PERIOD FROM JANUARY THROUGH APRIL WAS PARTICULARLY COLD DUE TO
THE INTENSITY AND PERSISTENCE OF THE EASTERN TROUGH DURING THAT
TIME. THE JANUARY THROUGH APRIL AVERAGE TEMPERATURE WAS ABOUT 7 TO 9
DEGREES BELOW NORMAL...ENOUGH TO QUALIFY THE FIRST FOUR MONTHS OF
2014 AS THE COLDEST OR SECOND COLDEST JANUARY THROUGH APRIL ON
RECORD OVER ALL OF UPPER MICHIGAN. THE CHILL THAT EXTENDED INTO MID-
MAY WAS EXACERBATED BY THE EXTENSIVE ICE BUILDUP ON THE GREAT LAKES
CAUSED BY THE PREVAILING INTENSE CHILL THAT HAD BEGUN AS EARLY AS
LATE NOVEMBER 2013. THE EXTREME COLD ALSO CAUSED THE FROST DEPTH TO
DESCEND FARTHER INTO THE GROUND THAN USUAL. THE RESULT WAS A
FREEZING OF SHALLOWER WATER PIPES AND DISRUPTION OF WATER SERVICE
THAT PLAGUED MANY HOMES AND COMMUNITIES ACROSS THE U.P. FROM
FEBRUARY THROUGH APRIL. THERE WAS A WELCOME RETURN TO WARMER WEATHER
THE SECOND HALF OF MAY.

ALTHOUGH JUNE FEATURED SLIGHTLY WARMER THAN NORMAL CONDITIONS...THE
WEATHER IN AUGUST AND ESPECIALLY JULY WAS MUCH COOLER THAN AVERAGE
WITH FREQUENT INCURSIONS OF CANADIAN AIRMASSES UNDER THE PERSISTENT
NORTHWEST FLOW ALOFT. THE MEAN SUMMER TEMPERATURE ENDED UP TO 3
DEGREES BELOW NORMAL NEAR THE GREAT LAKES...WHERE THE CHILLY WATER
TEMPERATURES MORE SIGNIFICANTLY MODIFIED THE WEATHER. SUMMER RAINFALL
WAS GENERALLY ABOVE NORMAL AND GREATLY LIMITED THE NUMBER OF
WILDFIRES.

THE WEATHER PATTERN IN THE FALL OF 2014 WAS VERY ACTIVE AND PUSHED
SEPTEMBER THROUGH NOVEMBER PRECIPITATION INTO THE LIST OF TOP FIVE
WETTEST ON RECORD AT MOST PLACES. IN FACT...MUNISING MEASURED ALMOST
17 INCHES OF PRECIPITATION DURING THE FALL...ITS HIGHEST SEPTEMBER
THROUGH NOVEMBER PRECIPITATION ON RECORD. SEPTEMBER TEMPERATURES
WERE NOT FAR FROM NORMAL...BUT MUCH COLDER WEATHER THEN PREVAILED IN
OCTOBER AND ESPECIALLY NOVEMBER AS THE UPPER TROUGH DEEPENED OVER
THE EAST HALF OF NORTH AMERICA. AT SOME PLACES...NOVEMBER 2014 WAS
THE COLDEST ELEVENTH MONTH ON RECORD. DUE TO THIS INTENSE NOVEMBER
CHILL...AUTUMN 2014 ENDED UP AS ONE OF TOP 10 COLDEST ON RECORD AT
MANY LOCATIONS. A HISTORIC SNOWSTORM AROUND VETERANS DAY THAT DUMPED
AS MUCH AS 36 TO 45 INCHES OF SNOW OVER THE HIGHER TERRAIN OF THE
HURON MOUNTAINS BOOSTED NOVEMBER 2014 SNOWFALL INTO RECORD TERRITORY
AT MANY PLACES. THE NOVEMBER CHILL SPILLED OVER INTO DECEMBER...BUT
WARMER WEATHER THAN DOMINATED MUCH OF THE REST OF THAT LAST MONTH OF
2014...LIFTING THE DECEMBER MEAN TEMPERATURE SEVERAL DEGREES ABOVE
NORMAL.
____________________________________________________________________
                    ...SOME 2014 SUPERLATIVES...

HIGHEST CALENDAR YEAR SNOWFALL...325.4 INCHES AT PAINESDALE IN
                                  HOUGHTON COUNTY

GREATEST SNOW DEPTH...64 INCHES AT PAINESDALE IN HOUGHTON COUNTY
                       ON 4/5

LOWEST SNOWFALL...57.5 INCHES AT MENOMINEE

HIGHEST PRECIPITATION...45.13 INCHES AT IRONWOOD

LOWEST PRECIPITATION...28.95 INCHES AT NORWAY IN DICKINSON COUNTY

HIGHEST TEMPERATURE...93 NEAR BARAGA AND ONTONAGON ON 7/21

LOWEST TEMPERATURE...-41 NEAR NEWBERRY ON 2/28
____________________________________________________________________
NWS MARQUETTE STATISTICS /RECORD 1961 TO PRESENT/

...2ND COLDEST YEAR...
...5TH WETTEST YEAR...
...16TH HIGHEST CALENDAR YEAR SNOW...

                                2014 /2013/  1981-2010      2014
                                 OBSERVED      NORMAL    DEPARTURE
ANNUAL AVERAGE TEMPERATURE /F/  36.5 /38.6/     40.1        -3.6

ANNUAL AVERAGE HIGH TEMP /F/    45.9 /47.5/     49.8        -3.9

ANNUAL AVERAGE LOW TEMP /F/     27.2 /29.8/     30.4        -3.2

PRECIPITATION /INCHES/         44.83 /39.76/   35.68       +9.15

SNOWFALL /INCHES/              212.7 /234.8/   203.3        +9.4

LOWEST TEMPERATURE /F/          -28 ON 2/28

HIGHEST TEMPERATURE /F/          87 ON 5/31
---------------------------------------------------------------------
MARQUETTE CITY STATISTICS /RECORD 1875 TO PRESENT/

...7TH COLDEST YEAR...
...21ST WETTEST YEAR...

                                2014 /2013/  1981-2010      2014
                                 OBSERVED      NORMAL    DEPARTURE
ANNUAL AVERAGE TEMPERATURE /F/  38.7 /41.3/     43.2        -4.5

ANNUAL AVERAGE HIGH TEMP /F/    45.7 /48.2/     50.3        -4.6

ANNUAL AVERAGE LOW TEMP /F/     31.6 /35.2/     36.2        -4.6

PRECIPITATION /INCHES/         35.93 /34.90/   29.13       +6.80

SNOWFALL /INCHES/              134.4 /108.9/   117.2       +17.2

LOWEST TEMPERATURE /F/          -15 ON 3/2

HIGHEST TEMPERATURE /F/          89 ON 6/30
---------------------------------------------------------------------
IRONWOOD STATISTICS /RECORD 1901 TO PRESENT/

...RECORD COLDEST YEAR...
...4TH HIGHEST CALENDAR YEAR SNOWFALL...
...6TH WETTEST YEAR...

                                2014 /2013/  1981-2010      2014
                                 OBSERVED      NORMAL    DEPARTURE
ANNUAL AVERAGE TEMPERATURE /F/  36.4 /37.9/     40.1        -3.7

ANNUAL AVERAGE HIGH TEMP /F/    45.9 /47.5/     49.8        -3.9

ANNUAL AVERAGE LOW TEMP /F/     27.0 /28.2/     30.4        -3.4

PRECIPITATION /INCHES/         45.13 /53.46/   34.93      +10.20

SNOWFALL /INCHES/              247.0 /244.8/   188.2       +58.8

LOWEST TEMPERATURE /F/          -28 ON 1/6

HIGHEST TEMPERATURE /F/          87 ON 7/21
---------------------------------------------------------------------
IRON MOUNTAIN STATISTICS /RECORD 1899 TO PRESENT/

...RECORD COLDEST YEAR...
...3RD HIGHEST CALENDAR YEAR SNOWFALL...
...16TH WETTEST YEAR...

                                2014 /2013/  1981-2010      2014
                                 OBSERVED      NORMAL    DEPARTURE
ANNUAL AVERAGE TEMPERATURE /F/  38.7 /40.8/     42.3        -3.6

ANNUAL AVERAGE HIGH TEMP /F/    49.4 /51.4/     53.6        -4.2

ANNUAL AVERAGE LOW TEMP /F/     28.0 /30.3/     31.0        -3.0

PRECIPITATION /INCHES/         33.86 /32.03/   29.72       +4.14

SNOWFALL /INCHES/               99.1 /65.5/     58.4       +40.7

LOWEST TEMPERATURE /F/          -26 ON 1/9

HIGHEST TEMPERATURE /F/          87 ON 5/30...5/31...6/16 AND 6/17
---------------------------------------------------------------------
NEWBERRY STATISTICS /RECORD 1899 TO PRESENT/

...RECORD COLDEST YEAR...
...7TH HIGHEST CALENDAR YEAR SNOWFALL...
...12TH WETTEST YEAR...

                                2014 /2013/  1981-2010      2014
                                 OBSERVED      NORMAL    DEPARTURE
ANNUAL AVERAGE TEMPERATURE /F/  38.0 /41.1/     42.0        -4.0

ANNUAL AVERAGE HIGH TEMP /F/    46.2 /49.2/     51.2        -5.0

ANNUAL AVERAGE LOW TEMP /F/     29.7 /33.0/     32.7        -3.0

PRECIPITATION /INCHES/         36.62 /43.49/   34.23       +2.39

SNOWFALL /INCHES/              185.1 /222.7/   132.2       +52.9

LOWEST TEMPERATURE /F/          -27 ON 2/28

HIGHEST TEMPERATURE /F/          83 ON 6/28
---------------------------------------------------------------------
HOUGHTON COUNTY AIRPORT STATISTICS /RECORD 1887 TO PRESENT/

...4TH COLDEST YEAR...
...12TH HIGHEST CALENDAR YEAR SNOWFALL...
...24TH WETTEST YEAR...

                                2014 /2013/  1981-2010      2014
                                 OBSERVED      NORMAL    DEPARTURE
ANNUAL AVERAGE TEMPERATURE /F/  37.0 /39.1/     40.5        -3.5

ANNUAL AVERAGE HIGH TEMP /F/    45.4 /47.2/     49.0        -3.6

ANNUAL AVERAGE LOW TEMP /F/     28.7 /31.0/     31.9        -3.2

PRECIPITATION /INCHES/         38.32 /41.10/   32.18       +6.14

SNOWFALL /INCHES/              252.0 /306.9/   207.7       +44.3

LOWEST TEMPERATURE /F/          -25 ON 2/27 AND 2/28

HIGHEST TEMPERATURE /F/          89 ON 7/21
---------------------------------------------------------------------
MUNISING STATISTICS /RECORD 1911 TO PRESENT/

...2ND COLDEST YEAR...
...3RD HIGHEST CALENDAR YEAR SNOWFALL...
...6TH WETTEST YEAR...

                                2014 /2013/  1981-2010      2014
                                 OBSERVED      NORMAL    DEPARTURE
ANNUAL AVERAGE TEMPERATURE /F/  37.3 /40.1/     42.0        -4.7

ANNUAL AVERAGE HIGH TEMP /F/    44.8 /47.4/     49.9        -5.1

ANNUAL AVERAGE LOW TEMP /F/     29.7 /32.9/     34.0        -4.3

PRECIPITATION /INCHES/         45.05 /43.95/   38.45       +6.60

SNOWFALL /INCHES/              212.0 /228.0/   152.1       +59.9

LOWEST TEMPERATURE /F/          -16 ON 1/28 AND 1/29

HIGHEST TEMPERATURE /F/          85 ON 5/25 AND 6/30
---------------------------------------------------------------------
MANISTIQUE STATISTICS /RECORD 1896 TO PRESENT/

...RECORD COLDEST YEAR...
...11TH WETTEST YEAR...
...13TH HIGHEST CALENDAR YEAR SNOWFALL...

                                2014 /2013/  1981-2010      2014
                                 OBSERVED      NORMAL    DEPARTURE
ANNUAL AVERAGE TEMPERATURE /F/  37.7 /40.3/     41.9        -4.2

ANNUAL AVERAGE HIGH TEMP /F/    45.8 /48.0/     49.9        -4.1

ANNUAL AVERAGE LOW TEMP /F/     29.7 /32.6/     33.7        -4.0

PRECIPITATION /INCHES/         33.61 /39.42/   27.50       +6.11

SNOWFALL /INCHES/               83.3 /102.5/    74.4        +8.9

LOWEST TEMPERATURE /F/          -17 ON 3/3

HIGHEST TEMPERATURE /F/          85 ON 7/22
---------------------------------------------------------------------
WATTON /BARAGA COUNTY/ STATISTICS

                                2014 /2013/
                                 OBSERVED
ANNUAL AVERAGE TEMPERATURE /F/  36.6 /37.7/

PRECIPITATION /INCHES/         34.99 /33.25/

SNOWFALL /INCHES/              151.3 /148.0/

LOWEST TEMPERATURE /F/          -22 ON 3/3

HIGHEST TEMPERATURE /F/          86 ON 5/31 AND 7/21
---------------------------------------------------------------------
STAMBAUGH /IRON COUNTY/ STATISTICS

                                2014 /2013/
                                 OBSERVED
ANNUAL AVERAGE TEMPERATURE /F/  34.3 /36.8/

PRECIPITATION /INCHES/         31.57 /33.62/

SNOWFALL /INCHES/               115.6 /75.8/

LOWEST TEMPERATURE /F/          -35 ON 1/10

HIGHEST TEMPERATURE /F/          86 ON 5/30
---------------------------------------------------------------------
GARDEN CORNERS /DELTA COUNTY/ STATISTICS

                                2014 /2013/
                                 OBSERVED
ANNUAL AVERAGE TEMPERATURE /F/  37.8 /40.4/

PRECIPITATION /INCHES/         39.80 /39.73/

SNOWFALL /INCHES/               98.0 /100.8/

LOWEST TEMPERATURE /F/          -30 ON 3/3

HIGHEST TEMPERATURE /F/          88 ON 7/22
____________________________________________________________________
GREAT LAKES WATER LEVELS (FEET ABOVE MEAN SEA LEVEL)

...GREAT LAKES WATER LEVELS REBOUND SHARPLY IN 2014...

                            LAKE SUPERIOR  LAKE MICHIGAN-HURON
                            OBS/NORM /DIFF    OBS/NORM /DIFF
01/01/14 DAILY MEAN       601.4/601.5/-0.1  577.3/578.4/-1.1
02/01/14 DAILY MEAN       601.2/601.3/-0.1  577.3/578.4/-1.1
03/01/14 DAILY MEAN       601.2/601.1/+0.1  577.2/578.4/-1.2
04/01/14 DAILY MEAN       601.1/601.2/-0.1  577.3/578.7/-1.4
05/01/14 DAILY MEAN       601.5/601.6/-0.1  578.0/579.0/-1.1
06/01/14 DAILY MEAN       602.2/601.8/+0.4  578.5/579.2/-0.7
07/01/14 DAILY MEAN       602.5/602.1/+0.4  578.9/579.3/-0.4
08/01/14 DAILY MEAN       602.6/602.1/+0.5  579.0/579.3/-0.3
09/01/14 DAILY MEAN       602.6/602.1/+0.5  579.1/579.1/ 0.0
10/01/14 DAILY MEAN       602.7/602.1/+0.6  579.1/578.9/+0.2
11/01/14 DAILY MEAN       602.7/601.9/+0.8  579.2/578.7/+0.5
12/01/14 DAILY MEAN       602.5/601.7/+0.8  579.2/578.5/+0.7
12/31/14 DAILY MEAN       602.3/601.5/+0.8  579.2/578.4/+0.8

THE COMBINATION OF INCREASED RUNOFF FROM A SECOND STRAIGHT YEAR OF
ABOVE NORMAL PRECIPITATION AND SNOWMELT AS WELL AS REDUCED
EVAPORATION RESULTING FROM EXTENSIVE ICE COVER ON THE LAKES THAT
PERSISTED MUCH LONGER THAN USUAL INTO THE 2014 SPRING AND LOWER
AIR/WATER TEMPERATURES CAUSED THE LEVEL OF LAKES SUPERIOR AND
MICHIGAN/HURON TO RISE SIGNIFICANTLY FROM 2013 TO 2014. IN FACT...
LAKES MICHIGAN/HURON WERE ALMOST 2 FEET HIGHER ON 12/31/14 THAN AT
THE BEGINNING OF THE YEAR. LAKE SUPERIOR WAS ABOUT A FOOT HIGHER AT
THE END OF THE YEAR. THE LEVEL OF ALL THE WESTERN GREAT LAKES WAS
ALMOST 10 INCHES ABOVE NORMAL ON 12/31/14. LAKES MICHIGAN/HURON WERE
AT RECORD LOW LEVELS AS RECENTLY AS EARLY IN 2013. SINCE THAT
TIME...THE LEVEL OF THESE LAKES HAS RISEN MORE THAN 3 FEET.
____________________________________________________________________
...2014 SUMMARY...

A DEEP UPPER TROUGH DOMINATED THE WEATHER PATTERN OVER THE GREAT
LAKES IN JANUARY 2014...BRINGING A TOP TEN COLDEST JANUARY TO UPPER
MICHIGAN. ALTHOUGH THE TROUGH RELAXED A BIT DURING THE MIDDLE OF
THE MONTH...PERIODS OF INTENSE COLD RELATED TO A NEARLY CONTINUOUS
FLOW OF CANADIAN AIR DURING THE BEGINNING AND END OF JANUARY CAUSED
THE MONTHLY MEAN TEMPERATURE TO RUN 6 TO 10 DEGREES BELOW NORMAL. AT
SOME PLACES...TEMPERATURES FAILED TO RISE ABOVE FREEZING THE ENTIRE
MONTH. IRON MOUNTAIN...IRONWOOD AND SOME OF THE COLDER INTERIOR
LOCATIONS SAW THE THERMOMETER READ BELOW ZERO ON 21 OF THE 31 DAYS
OF JANUARY...MORE THAN HAD BEEN REPORTED IN ANY JANUARY SINCE THE
COLD FIRST MONTHS IN 1994 AND 2009. THE MOST DANGEROUS COLD WAVES
IMPACTED UPPER MICHIGAN ON 1/6 INTO 1/9 AND 1/26 INTO 1/29...PERIODS
WHEN THE MERCURY FAILED TO RISE ABOVE ZERO AT SOME LOCATIONS EVEN
DURING THE DAYLIGHT HOURS. IRONWOOD REPORTED A -18 MAXIMUM
TEMPERATURE ON 1/6 AND WIND CHILLS AS LOW AS -45 TO -50 AT TIMES
DURING THESE TWO BITTERLY COLD WAVES. STAMBAUGH IN IRON COUNTY SAW
THE LOWEST TEMPERATURE WITH A -35 ON 1/9.

ALTHOUGH ONLY ONE LARGE-SCALE...MOISTURE-LADEN LOW PRESSURE SYSTEM
IMPACTED UPPER MICHIGAN IN JANUARY AT THE END OF THE MONTH...A
PARADE OF ALBERTA CLIPPER-TYPE LOW PRESSURE SYSTEMS AND FREQUENT
LAKE EFFECT SNOWS IN MAINLY THE WEST TO NORTHWEST WIND SNOW BELTS
DELIVERED NEAR TO ABOVE NORMAL SNOWFALL AND WATER EQUIVALENT
PRECIPITATION TO MOST OF UPPER MICHIGAN IN JANUARY. THE HEAVIEST
SNOW AND PRECIPITATION RELATIVE TO NORMAL OCCURRED NEAR LAKE
SUPERIOR EAST OF MARQUETTE...WHERE GRAND MARAIS IN ALGER COUNTY
PICKED UP 83.3 INCHES OF SNOW. NEWBERRY HAD ITS SECOND HEAVIEST
JANUARY SNOWFALL WITH 66.5 INCHES OF THE WHITE STUFF.

FEBRUARY 2014 WENT DOWN IN THE RECORD BOOKS AS ONE OF THE TOP FIVE
COLDEST SECOND MONTHS AT MOST PLACES IN THE U.P. DUE TO THE NEARLY
CONTINUOUS NORTHWEST FLOW OF COLD CANADIAN AIR BETWEEN THE
PERSISTENT WESTERN RIDGE AND EASTERN TROUGH PATTERN THAT HAD
DOMINATED SINCE LATE NOVEMBER 2013 AS WELL AS THE EXTENSIVE SNOW
COVER OVER LAND AND GROWING ICE COVER ON THE GREAT LAKES. THE MEAN
MONTHLY TEMPERATURE AVERAGED 9 TO AS MUCH AS AN IMPRESSIVE 12
DEGREES BELOW NORMAL. EXCEPT FOR A COUPLE OF DAYS AROUND 2/19 WHEN
THE DEEP EASTERN TROUGH GAVE WAY BRIEFLY TO A MORE ZONAL PACIFIC
FLOW...EVERY DAY IN THE MONTH WAS COLDER THAN NORMAL. AT SOME
LOCATIONS...THE WARMER DAYS FROM 2/18 INTO 2/20 WERE THE FIRST TIME
SINCE EARLY DECEMBER 2013 WHEN TEMPERATURES ROSE ABOVE 32. AT THE
MARQUETTE NWS...THERE WAS A RECORD 75 CONSECUTIVE DAYS BETWEEN
12/5/13 AND 2/19/14 WHEN THE MERCURY DID NOT RISE ABOVE THE FREEZING
MARK. DURING THE COLDEST PERIOD FROM 2/25 THROUGH 2/28...MEAN DAILY
TEMPERATURES RAN 20 TO AS MUCH AS 30 DEGREES BELOW NORMAL. AT MANY
PLACES...THE THERMOMETER NEVER ROSE ABOVE THE ZERO MARK ON 2/27...
AND THE MORNING ON 2/28 WAS PARTICULARLY COLD. A LOCATION NEAR
NEWBERRY REPORTED A MINIMUM OF -41 ON THAT DAY...THE LOWEST
TEMPERATURE LOGGED IN UPPER MICHIGAN NOT ONLY IN FEBRUARY BUT ALL OF
2014. WIND CHILLS WERE AS LOW AS -40 DURING THIS TIME. AT IRON
MOUNTAIN AND MANISTIQUE...THERE WAS A RECORD NUMBER OF DAYS WITH
SUB-ZERO MINIMUM TEMPERATURES IN FEBRUARY. THE COMBINATION OF THIS
CHILL ALONG WITH THE VERY COLD WEATHER THAT HAD DOMINATED IN
DECEMBER AND JANUARY CAUSED THE FROST DEPTH TO DESCEND FARTHER INTO
THE GROUND THAN USUAL...RESULTING IN A FREEZING OF SHALLOWER WATER
PIPES AND DISRUPTION OF WATER SERVICE IN MANY COMMUNITIES.

ALTHOUGH THE GENERAL NORTHWEST FLOW ALOFT TENDED TO SUPPRESS MOST OF
THE LARGER SCALE LOW PRESSURE SYSTEMS TO THE SOUTH AND THE GROWING
ICE COVER ON LAKE SUPERIOR TENDED TO DIMINISH LAKE EFFECT SNOWS...
MUCH OF WESTERN AND SOUTH CENTRAL UPPER MICHIGAN SAW ABOVE NORMAL
WATER EQUIVALENT PRECIPITATION AND SNOW IN FEBRUARY. AREAS OVER THE
NORTH CENTRAL AND EAST TENDED TO BE DRIER THAN NORMAL. THE ONE
DEEPER AND MOISTER LOW TO IMPACT UPPER MICHIGAN MOVED NORTHEAST FROM
THE PLAINS AND THROUGH THE WESTERN UPPER PENINSULA ON 2/20 INTO
2/21...BRINGING A WINTRY MIX OF PRECIPITATION. ONCE THIS LOW MOVED
INTO ONTARIO ON 2/22...INCREASING WEST WINDS THAT GUSTED AS HIGH AS
55 TO 60 MPH OVER THE KEWEENAW CAUSED EXTENSIVE BLOWING SNOW AND
BLIZZARD CONDITIONS THAT LINGERED OVER THAT AREA INTO EARLY 2/24.
MANY SECONDARY ROADS IN KEWEENAW AND HOUGHTON COUNTIES BECAME
IMPASSABLE FROM 2/21 THROUGH 2/23. THE SNOW DEPTH AT PAINESDALE IN
HOUGHTON COUNTY REACHED 60 INCHES FOLLOWING THIS BLIZZARD ON 2/24.

A COLD NORTHWEST FLOW OF CANADIAN AIR PERSISTED OVER THE GREAT LAKES
MUCH OF THE TIME THROUGH MARCH...DROPPING THE MEAN MONTHLY
TEMPERATURE TO 9 TO 13 DEGREES BELOW AVERAGE AND EARNING MARCH 2014
A SPOT IN THE LIST OF TOP FIVE COLDEST THIRD MONTHS ON RECORD. THE
EXTENSIVE ICE COVER ON THE GREAT LAKES SURROUNDING UPPER MICHIGAN
EXACERBATED THE CHILL. IN FACT...AT IRONWOOD...MUNISING...
MANISTIQUE...ONTONAGON AND THE MARQUETTE NWS...MARCH 2014 IS NOW THE
COLDEST MARCH ON RECORD. MANY PLACES REPORTED MORE SUB-ZERO LOW
TEMPERATURES THAN IN ANY PREVIOUS MARCH. DURING THE COLDEST PERIODS
OF MARCH ON 3/1 THROUGH 3/3...3/12 INTO 3/13...3/15 INTO 3/16 AND
3/23 INTO 3/26... MEAN DAILY TEMPERATURES AVERAGED UP TO 25 DEGREES
BELOW NORMAL. THE THERMOMETER BOTTOMED OUT AS LOW AS -34 AT
WAKEFIELD IN GOGEBIC COUNTY ON 3/3. SINCE PERSISTENT SNOW COVER AND
THE SUSTAINED CHILL PREVENTED ANY WARMING OF THE GROUND...SHALLOW
WATER PIPES REMAINED SUSCEPTIBLE TO FREEZING. MANY HOMES IN THE U.P.
SAW A DISRUPTION OF WATER SERVICE. THERE WERE SOME BREAKS IN THE
COLD WHEN THE TROUGH IN EASTERN NORTH AMERICA RELAXED. MANY PLACES
SAW THEIR FIRST 50- OR EVEN 60-DEGREE TEMPERATURES ON 3/10 SINCE THE
PREVIOUS OCTOBER OR NOVEMBER.

THE PERSISTENT NORTHWEST FLOW ONCE AGAIN FORCED MOST OF THE LARGER
LOW PRESSURE SYSTEMS THAT DEVELOPED IN THE PLAINS TO REMAIN SOUTH OF
UPPER MICHIGAN. SINCE LAKE SUPERIOR WAS ALMOST COMPLETELY ICE
COVERED DURING MARCH...THERE WAS RELATIVELY LITTLE LAKE EFFECT SNOW
AS WELL. SO MONTHLY PRECIPITATION AND SNOWFALL WERE BELOW NORMAL AT
MOST LOCATIONS. THE MOST ACTIVE WEATHER OCCURRED FROM 3/17 INTO
3/28...WHEN THREE STRONGER DISTURBANCES IMPACTED THE UPPER LAKES. UP
TO A FOOT OF SNOW FELL AT GLADSTONE IN DELTA COUNTY ON 3/27 INTO
3/28 WHEN THE DEEPEST OF THE THREE LOW PRESSURE SYSTEMS HIT THE U.P.

ALTHOUGH THE COLD WAS NOT AS INTENSE AS DURING THE PREVIOUS FOUR
MONTHS DUE TO INCREASING SUN ANGLE...THE WEATHER PATTERN IN APRIL
2014 FEATURED THE SAME CHILLY NORTHWEST FLOW ALOFT BETWEEN A WESTERN
RIDGE AND EASTERN TROUGH. THE MEAN MONTHLY TEMPERATURE FINISHED 4 TO
6 DEGREES BELOW NORMAL ACROSS UPPER MICHIGAN IN APRIL...AND A NUMBER
OF SPOTS FINISHED WITH A TOP TEN COLDEST FOURTH MONTH. THE COLDEST
PERIOD WAS AT MID MONTH...WHEN DAILY TEMPERATURES FELL TO AS MUCH AS
25 DEGREES BELOW AVERAGE ON 4/15 AND 4/16. THE MERCURY TUMBLED BELOW
ZERO AT SOME OF THE INTERIOR COLD SPOTS ON BOTH THOSE MORNINGS AND
ALL THE WAY TO THE MONTHLY LOW OF -7 ON 4/16 AT CLARKSBURG/CHAMPION
IN MARQUETTE COUNTY.

UNLIKE MARCH WHEN DRIER THAN NORMAL WEATHER WAS THE RULE OVER THE
GREAT LAKES...5 STRONGER DISTURBANCES EMBEDDED WITHIN THE LARGER
SCALE WINTRY PATTERN AND THEIR ACCOMPANYING SURFACE LOWS BROUGHT AN
ACTIVE WEATHER PATTERN AND ABOVE NORMAL PRECIPITATION AND SNOW TO
THE U.P. IN APRIL. THE MOST SIGNIFICANT LOW PRESSURE SYSTEMS WERE ON
LATE 4/3 THROUGH 4/4...4/13 INTO 4/14...4/16 INTO 4/17...4/24 INTO
4/25 AND ON 4/29. MANY PLACES REPORTED ABOUT DOUBLE THE NORMAL
MONTHLY PRECIPITATION. SINCE THE WEATHER WAS SO CHILLY...MUCH OF THE
HEAVY PRECIPITATION FELL IN THE FORM OF SNOW...ESPECIALLY OVER THE
HIGHER TERRAIN OF THE WEST AND CENTRAL...WHERE SOME PLACES SAW A
FOOT OR MORE ACCUMULATION DURING THE 4/3 THROUGH 4/4 AND 4/16 INTO
4/17 WINTER STORMS. MANY LOCATIONS ENDURED A TOP 10 HEAVIEST APRIL
MONTHLY SNOW THAT EXCEEDED 50 INCHES AT A FEW SPOTS...UP TO 400
PERCENT OF NORMAL. ATLANTIC MINE OVER THE HIGHER TERRAIN IN HOUGHTON
COUNTY LED REPORTING STATIONS WITH 5.57 INCHES OF WATER EQUIVALENT
PRECIPITATION AND 51 INCHES OF SNOW. THE SNOW DEPTH REACHED AN
IMPRESSIVE 64 INCHES AT PAINESDALE ON 4/5 IN THE WAKE OF THE 4/3
THROUGH 4/4 WINTER STORM.

THE WEATHER PATTERN IN MAY 2014 FEATURED A MAJOR CHANGE SOON AFTER
THE MIDDLE OF THE MONTH FROM THE DEEP UPPER TROUGH OVER EASTERN
NORTH AMERICA AND THE GREAT LAKES THAT HAD DOMINATED SINCE
THANKSGIVING TO A HIGH AMPLITUDE RIDGE. THE RESULT FOR UPPER
MICHIGAN WEATHER WAS A SHIFT FROM A COOL...WET REGIME THROUGH ABOUT
5/17 TO A WARM AND DRY ONE THE LAST TWO WEEKS OF MAY. SINCE THE
WARMTH THE LAST TWO WEEKS OF MAY DID NOT QUITE BALANCE OUT THE
CHILL OBSERVED DURING THE FIRST HALF OF THE MONTH...MEAN MONTHLY
TEMPERATURES AT MOST PLACES ENDED UP FROM NEAR NORMAL OVER THE WEST
TO UP TO 2 DEGREES BELOW AVERAGE ACROSS MUCH OF THE EAST HALF IN MAY
2014. LOCATIONS NEAR THE INFLUENCE OF THE CHILLY GREAT LAKES WERE
COOLEST...ESPECIALLY ALONG THE EAST HALF OF LAKE SUPERIOR WHERE ICE
THAT HAD FORMED IN THE INTENSE WINTER COLD PERSISTED THROUGH THE
MONTH. AT LEAST SOME ICE LINGERED THROUGH THE END OF MAY IN THE LAKE
WATERS NEAR MARQUETTE...THE MAY AVERAGE TEMPERATURE THERE ENDED UP
4.5 DEGREES BELOW NORMAL. DURING A LATE MONTH WARM STRETCH...THE
MERCURY HIT 90 ON 5/31 AT KENTON IN FAR SOUTHERN HOUGHTON COUNTY.

MOST OF THE PRECIPITATION THAT OCCURRED IN MAY FELL DURING THE FIRST
THREE WEEKS OF THE MONTH WHEN SEVERAL IMPORTANT DISTURBANCES PASSED
THROUGH THE DOMINATING UPPER TROUGH. AREAS OVER WESTERN UPPER
MICHIGAN NEAR ONTONAGON WERE WETTEST...WITH 4 INCHES OF MORE OF
WATER EQUIVALENT PRECIPITATION FALLING AT SOME LOCATIONS IN THAT
AREA THROUGH THE MONTH. TOTAL MAY PRECIPITATION RANGED FROM 2 TO 3
INCHES OVER MOST OF THE CENTRAL AND EAST. THE MOST SIGNIFICANT RAIN
EVENT IN MAY OCCURRED OVER THE WEST FROM LATE ON 5/7 INTO THE EARLY
MORNING HOURS ON 5/9...WHEN A LOW PRESSURE SYSTEM MOVED NORTHEAST
FROM THE PLAINS THROUGH WESTERN LAKE SUPERIOR. MANY LOCATIONS OVER
THE WEST FROM IRONWOOD THROUGH THE KEWEENAW REPORTED 1 TO 2 INCHES
OF RAIN. ANOTHER LOW PRESSURE SYSTEM LIFTING NORTHEAST THROUGH LOWER
MICHIGAN DROPPED A MIX OF RAIN AND SNOW OVER MUCH OF THE CENTRAL AND
EAST ON 5/15 INTO 5/16. NEARLY 4 INCHES OF WET SNOW FELL AT A FEW
PLACES OVER THE HIGHER TERRAIN OF THE NORTH CENTRAL...WHERE HIGH
TEMPERATURES HELD IN THE 30S ON 5/15 AND ESTABLISHED NEW DAILY
RECORD LOW MAXIMUMS. AN INCH OR MORE OF RAIN FELL AT MANY PLACES
ACROSS THE SOUTH CENTRAL ON 5/19 INTO 5/20 TO THE NORTH OF AN
APPROACHING WARM FRONT.

JUNE 2014 WEATHER ACROSS UPPER MICHIGAN WAS DOMINATED BY A VERY
CHANGEABLE...ACTIVE WEATHER PATTERN THAT FEATURED SOME HEAVY RAINS
AND VARIABLE PERIODS OF WARM AND CHILLY WEATHER. MOST LOCATIONS
REPORTED ABOVE NORMAL JUNE RAINFALL...WITH OVER 5 INCHES...OR UP TO
DOUBLE THE MONTHLY NORMAL...FALLING AT SEVERAL LOCATIONS. BUT AS IS
OFTEN THE CASE IN THE SUMMER...SOME PLACES MISSED THE BULK OF THE
SHOWERS AND THUNDERSTORMS THAT DUMPED THE HEAVY RAIN AT THE OTHER
SITES. ONLY AROUND 2 INCHES OF RAIN...OR 75 PERCENT OF THE JUNE
AVERAGE...FELL AT THE DRIER LOCATIONS. IN GENERAL...THE WETTEST
WEATHER OCCURRED DURING THE SECOND HALF OF JUNE. BUT ON 6/1 AND
6/2...WAVES OF LOW PRESSURE MOVING NORTHEAST ALONG A SLOW MOVING
COLD FRONT INTERACTED WITH A VERY WARM AND HUMID AIRMASS IN PLACE
OVER THE UPPER LAKES THAT WAS RESPONSIBLE FOR THE 90-DEGREE
TEMPERATURE REPORTED AT KENTON ON 5/31. OVER 2 INCHES OF RAIN
INUNDATED SOME PLACES OVER THE WEST HALF IMPACTED BY THE HEAVIER
SHOWERS AND STORMS DURING THESE TWO DAYS.

ANOTHER PERIOD OF LOCALLY HEAVY RAIN OCCURRED ON 6/20...WHEN AN
UPPER DISTURBANCE INTERACTED WITH AN APPROACHING WARM FRONT TO DROP
1 TO 2 INCHES OF PRECIPITATION IN A SWATH FROM NEAR MARQUETTE TO
MANISTIQUE. A SERIES OF DISTURBANCES MOVING NORTHEAST ALONG ANOTHER
SLOW-MOVING COLD FRONT RESULTED IN MORE LOCALIZED HEAVY RAINS UP TO
AROUND 2 INCHES ON 6/23 AND 6/24. A TRIO OF DISTURBANCES CROSSING
THE GREAT LAKES ON 6/27 INTO 6/29 LIFTED SOME VERY WARM AND HUMID
AIR THAT WAS DESTABILIZED BY TEMPERATURES THAT PEAKED AS HIGH AS 92
AT BARAGA ON 6/28. TOTAL RAINFALL APPROACHED 2 INCHES AT SOME
LOCATIONS OVER THE WEST. THE ONLY SEVERE THUNDERSTORMS TO STRIKE THE
U.P. IN JUNE OCCURRED IN THE EVENING ON 6/29...WHEN THERE WAS SOME
WIND DAMAGE AND/OR LARGE HAIL ACROSS SOME OF THE WESTERN COUNTIES.

MEAN MONTHLY TEMPERATURES IN JUNE WERE UP TO 2 DEGREES ABOVE NORMAL
OVER MUCH OF INTERIOR UPPER MICHIGAN. LOCATIONS NEAR THE GREAT LAKES
WERE UP TO 3 TO 4 DEGREES COOLER THAN THE MONTHLY AVERAGE DUE TO
THEIR PROXIMITY TO THE VERY CHILLY LAKE WATERS COOLED BY THE
PREVIOUS WINTER CHILL. IN FACT...SOME ICE STILL LINGERED ON LAKE
SUPERIOR INTO EARLY JUNE...EXACERBATING THE CHILL NEAR THAT
SHORELINE.

AN UPPER TROUGH WAS PRESENT OVER EASTERN NORTH AMERICA MOST OF THE
TIME IN JULY 2014...RESULTING IN A COOLER THAN NORMAL MONTH ACROSS
ALL OF UPPER MICHIGAN AS THE NORTHWEST FLOW ALOFT TO THE WEST OF THE
TROUGH AXIS ALLOWED FOR FREQUENT INCURSIONS OF CANADIAN AIRMASSES.
MEAN MONTHLY TEMPERATURES ENDED UP FROM 2 TO NEARLY 5 DEGREES BELOW
NORMAL OVER THE EAST AND WERE DUE MAINLY TO RELATIVELY LOW DAYTIME
TEMPERATURES. IN FACT...THERE WERE NO OCCURRENCES OF 80-DEGREE
TEMPERATURES AT NEWBERRY IN JULY FOR THE FIRST TIME SINCE 1992.
ON THE COOLEST DAYS OF 7/8...7/14...7/15 AND 7/27...THE THERMOMETER
FAILED TO RISE OUT OF THE 50S AT MANY PLACES...AND A NUMBER OF NEW
DAILY RECORD LOW MAXIMUM TEMPERATURES WERE ESTABLISHED. MANY
LOCATIONS EXPERIENCED A TOP TEN COOLEST JULY. THE ONLY REAL SUMMER-
LIKE WEATHER OCCURRED ON 7/20 INTO 7/22...WHEN AN UPPER RIDGE BUILT
INTO THE GREAT LAKES. SOME PLACES SAW THE MERCURY REACH 90 OR BETTER
ON 7/21...THE WARMEST DAY WHEN READINGS TOPPED OUT AT 93 NEAR
ONTONAGON AND BARAGA.

DESPITE THE PRESENCE OF THE UPPER TROUGH...MOST PLACES ACROSS THE
U.P. SAW DRIER THAN NORMAL CONDITIONS IN JULY. THE EXCEPTION WAS THE
NORTHWEST COUNTIES. HERMAN OVER THE HIGHER TERRAIN IN THE HURON
MOUNTAINS OF BARAGA COUNTY MEASURED 5.96 INCHES OF RAIN. ONLY 1 TO 2
INCHES FELL AT THE DRIER AREAS AROUND MENOMINEE...IRON MOUNTAIN...
MANISTIQUE AND NEWBERRY. IN GENERAL...THE MORE WIDESPREAD HEAVIER
RAINS FELL DURING THE FIRST HALF OF JULY. A PAIR OF UPPER
DISTURBANCES MOVING ALONG THE CANADIAN BORDER BROUGHT ROUNDS OF
SHOWERS AND THUNDERSTORMS TO MOST OF UPPER MICHIGAN ON 7/5 INTO 7/6
AND NEARLY 2 INCHES OF RAIN TO SOME LOCATIONS OVER THE NORTH
CENTRAL. A LITTLE OVER 2 INCHES INUNDATED SOME PLACES OVER THE WEST
DURING A ROUND OF SHOWERS AND STORMS THAT ACCOMPANIED A STRONG COLD
FRONTAL PASSAGE ON 7/7 INTO 7/8.

AS A POTENT DISTURBANCE MOVED INTO THE GREAT LAKES ON 7/22 AND
INTERACTED WITH THE VERY WARM AND HUMID AIRMASS IN PLACE...SOME
THUNDERSTORMS WITH VERY HEAVY RAIN AND DAMAGING WINDS IMPACTED
MAINLY WEST AND NORTH CENTRAL UPPER MICHIGAN. THESE THUNDERSTORMS
ALSO CAUSED A SEICHE ON LAKE SUPERIOR THAT RESULTED IN LARGE
FLUCTUATIONS UP TO 3 FEET IN LAKE LEVEL IN AND AROUND MUNISING IN
THE MORNING ON 7/22. DURING THE TIMES OF WATER RISE...MINOR
FLOODING DAMAGED SOME DOCKS ON THE EAST SIDE OF MUNISING BAY.
ANOTHER ROUND OF HEAVY RAIN SHOWERS OCCURRED ON 7/25 INTO 7/27 AS
TWO STRONGER LOW PRESSURE SYSTEMS MOVED THROUGH THE GREAT LAKES
UNDER THE DEEPENING UPPER TROUGH. OVER 2 INCHES OF RAIN FELL JUST
EAST OF ESCANABA DURING THIS TIME.

SINCE A NORTHWEST FLOW ALOFT ON THE WESTERN FLANK OF A PERSISTENT
TROUGH IN EASTERN NORTH AMERICA DOMINATED MUCH OF THE TIME IN
AUGUST...ESPECIALLY THE FIRST THREE WEEKS OF THE MONTH...THERE WERE
FREQUENT INCURSIONS OF COOLER CANADIAN AIR INTO THE UPPER GREAT
LAKES. THE RESULT WAS A MEAN MONTHLY TEMPERATURE THAT RAN 1 TO 3
DEGREES BELOW NORMAL AT MOST PLACES. SOME PLACES NEAR THE
ANOMALOUSLY COLD WATERS OF LAKE SUPERIOR WERE EVEN COOLER...ALMOST 4
DEGREES BELOW AVERAGE. THE COOLEST TIME WAS THE WEEK FROM 8/11
THROUGH 8/18...WHEN A LOCATION JUST INLAND FROM MUNISING REPORTED
THE LOWEST AUGUST TEMPERATURE OF 29. THERE WERE NO REPORTS OF 90-
DEGREE TEMPERATURES IN AUGUST...EVEN DURING THE WARMEST STRETCH FROM
8/21 THROUGH 8/25.

HIGH PRESSURE TENDED TO DOMINATE AND BRING DRY CONDITIONS MUCH OF
THE FIRST HALF OF AUGUST...BUT THE PATTERN BECAME MORE ACTIVE AND
WETTER DURING THE SECOND HALF AFTER THE UPPER FLOW SHIFTED TO A MORE
WEST-TO-EAST ORIENTATION FOLLOWING A WEAKENING OF THE UPPER TROUGH
IN EASTERN CANADA. FREQUENT SHOWERS AND THUNDERSTORMS AFTER 8/15
LIFTED AUGUST RAINFALL NEAR TO ABOVE NORMAL AT MOST PLACES.
GLADSTONE IN DELTA COUNTY LED REPORTED STATIONS WITH A MONTHLY
RAINFALL OF 5.63 INCHES...ALMOST DOUBLE THE MONTHLY NORMAL.

A COLD FRONT SWEEPING ACROSS UPPER MICHIGAN DURING THE AFTERNOON ON
8/3 DROPPED AS MUCH AS AN INCH OF RAIN AT ESCANABA IN 15 MINUTES...
FLOODING SOME STREETS. A WAVE OF LOW PRESSURE RIDING NORTH ALONG A
SLOW MOVING COLD FRONT IN THE GREAT LAKES BROUGHT MODERATE TO HEAVY
SHOWERS TO SOME LOCATIONS ON 8/11 INTO 8/12. ANOTHER COLD FRONT
PASSING ACROSS THE UPPER LAKES TRIGGERED MORE MODERATE SHOWERS AND
STORMS DURING THE NIGHT ON 8/15-8/16.

A SLOW MOVING UPPER DISTURBANCE AND SURFACE LOW PRESSURE SYSTEM THAT
INTERACTED WITH A VERY HUMID AIRMASS CAUSED NUMEROUS SHOWS AND SOME
THUNDERSTORMS WITH HEAVY DOWNPOURS ON 8/18 INTO 8/20. AS MUCH AS
2.54 INCHES OF RAIN INUNDATED MOHAWK IN KEWEENAW COUNTY DURING THIS
TIME. ANOTHER BATCH OF HEAVY RAIN SHOWERS AND THUNDERSTORMS THAT
DEVELOPED NORTH OF A WARM FRONT IN THE UPPER MIDWEST IMPACTED MAINLY
CENTRAL UPPER MICHIGAN ON 8/23. A LOCATION NEAR CHANNING IN
DICKINSON COUNTY PICKED UP 3.72 INCHES OF RAIN...AND 2.72 INCHES
FELL AT CRYSTAL FALLS ON THAT DATE.

AS A POTENT UPPER DISTURBANCE MOVING THROUGH THE NORTHERN PLAINS
LIFTED VERY WARM AND HUMID AIR OVER THE GREAT LAKES DURING THE EARLY
MORNING HOURS ON 8/25...A BAND OF HEAVY SHOWERS AND THUNDERSTORMS
ACCOMPANIED BY HEAVY RAINS AND GUSTY WINDS IMPACTED MAINLY THE WEST
HALF OF THE U.P. CLOSE TO 2 INCHES OF RAIN FELL AT SOME PLACES OVER
THE WEST. ANOTHER ROUND OF SOME HEAVY RAIN SHOWERS AND STORMS
ARRIVED OVER WESTERN UPPER MICHIGAN LATE IN THE DAY AHEAD OF A SLOW
MOVING COLD FRONT THAT CROSSED THE AREA ON 8/30. NEARLY 2 INCHES OF
RAIN FELL AT IRONWOOD AND MUNISING DURING THIS EVENT.

IN SEPTEMBER 2014...THE WEATHER PATTERN OVER UPPER MICHIGAN WAS
RATHER CHANGEABLE WITH PERIODS OF COOL AND WET WEATHER AS WELL AS
WARM AND DRY ONES THAT CORRESPONDED TO THE PASSAGE OF UPPER TROUGHS
AND RIDGES THROUGH THE GREAT LAKES. DESPITE THE DRY PERIODS...A FEW
WIDESPREAD HEAVY RAINS RESULTED IN NORMAL TO ABOVE NORMAL RAINFALL
ACROSS MOST OF UPPER MICHIGAN. THE HEAVIEST PRECIPITATION FELL NEAR
THE WISCONSIN BORDER...WHERE IRON MOUNTAIN MEASURED AS MUCH AS 6.54
INCHES OF RAIN...ABOUT 180 PERCENT OF THE SEPTEMBER NORM. ALTHOUGH
THERE WERE PERIODS OF WARM WEATHER...ESPECIALLY DURING THE FOURTH
WEEK OF SEPTEMBER...VERY CHILLY WEATHER CENTERED AROUND MID MONTH
TENDED TO OFFSET THE LATE MONTH WARMTH. THE RESULT WAS A MEAN
MONTHLY TEMPERATURE FROM NEAR NORMAL TO ABOUT A DEGREE BELOW AVERAGE.

THE GREAT MAJORITY OF THE SEPTEMBER RAIN FELL DURING THE FIRST HALF
OF THE MONTH WHEN SEVERAL STRONGER DISTURBANCES IMPACTED THE UPPER
LAKES. A LOW PRESSURE SYSTEM TRACKING THROUGH NORTHWEST ONTARIO AND
ITS ATTENDANT WARM AND COLD FRONTS DROPPED SOME HEAVY RAINS LATE ON
9/3 INTO 9/5. THE SOUTH CENTRAL UPPER PENINSULA SAW THE HEAVIEST
RAIN DURING THIS TIME WITH AS MUCH AS 4.00 INCHES SOAKING CARNEY IN
MENOMINEE COUNTY AND 3.83 INCHES THE CITY OF MENOMINEE. THESE HEAVY
RAINS CAUSED SOME FLASH FLOODING IN DICKINSON...MENOMINEE AND DELTA
COUNTIES. THERE WAS ALSO SOME WIND DAMAGE IN MENOMINEE COUNTY UNDER
THE MOST SEVERE THUNDERSTORMS.

A DEEPENING LOW PRESSURE SYSTEM MOVING THROUGH THE CENTRAL GREAT
LAKES CAUSED A WIDESPREAD HEAVY RAIN EVENT ACROSS UPPER MICHIGAN ON
9/10 INTO 9/11 ALONG WITH NORTH WINDS GUSTING TO NEAR 50 MPH ALONG
THE LAKE SUPERIOR SHORE. MANY PLACES SAW 2 INCHES OR MORE OF RAIN...
WITH AS MUCH 3.34 INCHES AT BIG BAY IN MARQUETTE COUNTY AND 3.30
INCHES IN MARQUETTE. DUE TO THE STRONG WINDS OFF THE CHILLY WATERS
OF LAKE SUPERIOR...SOME PLACES OVER MAINLY THE NORTHERN TIER
REPORTED HIGH TEMPERATURES IN THE UPPER 40S ON 9/10 THROUGH 9/12...
ESTABLISHING NEW DAILY RECORD LOW MAXIMUMS AT SOME OF THOSE SITES.
SOME SNOW EVEN MIXED WITH THE RAIN NEAR WAKEFIELD IN GOGEBIC COUNTY
DURING THE NIGHT ON 9/10-9/11. WHEN WARMER WEATHER RETURNED THE LAST
WEEK OF SEPTEMBER...THE MERCURY TOPPED OUT IN THE 80 TO 85 RANGE AT
SOME LOCATIONS ON 9/23 AND 9/26 THROUGH 9/28...BREAKING SOME DAILY
RECORD HIGH TEMPERATURES.

THE OCTOBER WEATHER PATTERN WAS AN ACTIVE ONE THAT FEATURED AN UPPER
TROUGH OVER CENTRAL AND EASTERN NORTH AMERICA MUCH OF THE TIME.
UNDER THIS FAVORABLE UPPER AIR FLOW...SEVERAL LARGER SCALE...
MOISTURE-LADEN LOW PRESSURE SYSTEMS IMPACTED UPPER MICHIGAN. THE
RESULT WAS ABOVE NORMAL PRECIPITATION AT MOST PLACES...ESPECIALLY
OVER THE NORTH CENTRAL AND EASTERN PORTIONS OF THE U.P. AS MUCH AS
7.07 INCHES OF PRECIPITATION INUNDATED MUNISING AND NEWBERRY...
TOTALS THAT ARE ABOUT DOUBLE THE OCTOBER NORMAL AT THOSE SITES. MANY
LOCATIONS IN THIS AREA EXPERIENCED A TOP FIVE WETTEST OCTOBER. EVEN
AWAY FROM THESE MOISTER LOCATIONS...AT LEAST 3 TO 4 INCHES OF WATER
EQUIVALENT PRECIPITATION FELL DURING OCTOBER.

WITH THE UPPER TROUGH DOMINATING MOST OF THE TIME...OCTOBER ENDED UP
COOLER THAN NORMAL AT MOST PLACES...WITH AN AVERAGE MONTHLY
TEMPERATURE UP TO 2 DEGREES BELOW THE MEAN. THE COLDEST AIRMASS
RELATIVE TO NORMAL INVADED THE UPPER LAKES DURING THE FIRST WEEK OF
OCTOBER FOLLOWING THE PASSAGE OF A LOW PRESSURE SYSTEM DURING THE
NIGHT ON 10/2-10/3. THIS STORM DROPPED SOME MODERATE TO HEAVY RAIN
OVER THE CENTRAL AND EAST AND WAS FOLLOWED BY NORTHWEST WINDS
GUSTING UP TO 40 MPH. SOME NEW DAILY RECORD LOW MAXIMUM TEMPERATURES
IN THE 30S WERE ESTABLISHED ON 10/4 AND 10/5...AND SNOW MIXED WITH
THE LAKE EFFECT RAIN SHOWERS THAT PREVAILED DURING THIS TIME.

A STATIONARY FRONT EXTENDING NORTHEAST INTO THE CENTRAL GREAT LAKES
FROM A LOW PRESSURE SYSTEM MOVING INTO THE MID MISSISSIPPI RIVER
VALLEY SERVED AS THE FOCUS FOR SOME HEAVY RAIN FROM LATE ON 10/13
INTO 10/15. SINCE THE EAST HALF OF UPPER MICHIGAN WAS CLOSER TO THIS
BOUNDARY...THE HEAVIEST RAIN FELL IN THIS AREA...WITH 2 INCHES OF
MORE OF RAIN COMMON. NEWBERRY PICKED UP THE MOST RAIN WITH 2.97
INCHES...AND MANISTIQUE WAS CLOSE BEHIND WITH 2.85 INCHES.

A STRONG DISTURBANCE MOVING THROUGH THE UPPER GREAT LAKES CAUSED
SOME LOCALLY HEAVY LAKE SUPERIOR-ENHANCED PRECIPITATION AND GUSTY
NORTH WINDS TO 45 MPH NEAR LAKE SUPERIOR ON 10/17 INTO EARLY 10/18.
CLOSE TO 2 INCHES OF RAIN FELL OVER THE NORTH CENTRAL. DAYTIME HIGH
TEMPERATURES ON 10/24 CLIMBED INTO THE 60S AT MANY PLACES. WEST
WINDS GUSTED UP TO 45 TO 50 MPH OVER THE KEWEENAW BEHIND THE COLD
FRONT THAT PASSED ON 10/25 AND BROUGHT A RETURN OF A MORE SEASONABLE
AIRMASS.

AS A DEEP LOW PRESSURE SYSTEM MOVED FROM THE NORTHERN PLAINS ON
10/27 AND INTO THE UPPER LAKES ON 10/28...SHOWERS AND EVEN SOME
THUNDERSTORMS NORTH OF THE WARM FRONT ASSOCIATED WITH THIS LOW
IMPACTED MAINLY CENTRAL AND EASTERN UPPER MICHIGAN. THE MOST UNUSUAL
ASPECT OF THIS WEATHER EVENT WAS SOME RARE SEVERE OCTOBER
THUNDERSTORMS. A NUMBER OF THE STORMS THAT OCCURRED DURING THIS
PERIOD DROPPED SMALL HAIL OVER MAINLY THE SOUTH CENTRAL. THE
STRONGEST STORM HAPPENED IN THE EARLY MORNING HOURS ON 10/28 AND
BOMBARDED MENOMINEE WITH HAIL AS LARGE AS 1.5 INCHES IN DIAMETER.
AFTER THE LOW TRACKED TO THE EAST ON 10/28...WEST WINDS GUSTING UP
TO 40 MPH ADVECTED COLDER AIR INTO THE UPPER GREAT LAKES.

THE FIRST WIDESPREAD ACCUMULATING SNOW OF THE UPCOMING WINTER SEASON
OCCURRED FROM LATE ON 10/30 THROUGH 10/31 FOLLOWING THE PASSAGE OF A
LOW PRESSURE SYSTEM THROUGH THE WESTERN GREAT LAKES. ALTHOUGH THE
PRECIPITATION BEGAN AS RAIN...NORTH WINDS GUSTING AS HIGH AS 45 TO
50 MPH IN THE WAKE OF THE LOW DREW MUCH COLDER AIR INTO THE UPPER
LAKES AND CAUSED THE PRECIPITATION TO CHANGE TO LAKE EFFECT SNOW
SHOWERS. BY THE TIME THIS PRECIPITATION DIMINISHED LATE ON HALLOWEEN
DAY...SNOW TOTALS OVER THE HIGHER TERRAIN OF THE WEST AND NORTH
CENTRAL REACHED 7 TO 8 INCHES.

ALTHOUGH THERE WERE SOME RELATIVELY WARM DAYS IN THE FIRST WEEK AND
AT TIMES DURING THE SECOND HALF OF THE MONTH...NOVEMBER 2014 WILL BE
REMEMBERED AS ONE OF THE TOP FIVE COLDEST AT MOST PLACES AND EVEN
THE COLDEST ON RECORD AT MUNISING AND THE MARQUETTE NWS OFFICE. THE
CAUSE WAS A PERSISTENT...DEEP UPPER TROUGH THAT PREVAILED MUCH OF
THE TIME OVER CENTRAL AND EASTERN NORTH AMERICA DOWNWIND OF A STRONG
RIDGE ACROSS THE WESTERN PART OF THE CONTINENT THAT WAS BUILT UP BY
A STRONG PACIFIC TROPICAL STORM. THE PREVAILING NORTH TO NORTHWEST
FLOW OF CANADIAN AIR WITHIN THE TROUGH DROPPED MEAN MONTHLY
TEMPERATURES ACROSS WEST AND CENTRAL UPPER MICHIGAN TO BETWEEN 5 AND
AS MUCH AS 9 DEGREES BELOW AVERAGE.

THE PERSISTENT UPPER TROUGH ALSO RESULTED IN WELL ABOVE NORMAL
PRECIPITATION AND SNOWFALL. IN FACT...IRONWOOD...MANISTIQUE...
MUNISING...NEWBERRY AND THE MARQUETTE NWS ALL ENDURED RECORD
NOVEMBER SNOWFALL. NEARLY 90 INCHES OF SNOW ACCUMULATED OVER THE FAR
WEST...INCLUDING THE RECORD 89.2 INCHES AT IRONWOOD...MORE THAN
TRIPLE THE NOVEMBER NORMAL SNOWFALL. WITH ALL THE COLD AIR BLOWING
OVER THE CHILLY BUT STILL RELATIVELY WARM WATERS OF LAKE SUPERIOR...
MODERATE TO HEAVY LAKE EFFECT SNOWS OCCURRED DURING THE FREQUENT
COLD AIR OUTBREAKS. NOVEMBER PRECIPITATION TOTALS WERE AS MUCH AS 7
INCHES OVER THE WEST...UP TO 250 PERCENT OF THE MONTHLY AVERAGE.

A STRONG COLD FRONTAL PASSAGE ON 11/7 INTO 11/8 BROUGHT A MIX OF
RAIN AND SNOW TO UPPER MICHIGAN. WHERE THE PRECIPITATION WAS MAINLY
SNOW OVER THE HIGHER TERRAIN OF THE WEST...6 INCHES OR MORE OF SNOW
ACCUMULATED AT SOME LOCATIONS. THE BULK OF THE MONTHLY SNOW AT MANY
PLACES AWAY FROM THE SOUTH CENTRAL ACCUMULATED DURING A HISTORIC
VETERANS DAY STORM THAT OCCURRED ON 11/10 INTO 11/12. MODERATE TO
HEAVY LAKE EFFECT SNOWS THAT FELL DURING THE NORTH TO NORTHWEST FLOW
OF COLDER AIR LEFT IN THE WAKE OF THE RESPONSIBLE LOW PRESSURE
SYSTEM PERSISTED FROM 11/12 INTO EARLY 11/14. STORM TOTAL SNOW
REACHED AS MUCH AS 36 TO 45 INCHES OVER THE HIGHER TERRAIN OF THE
NORTH CENTRAL...AND NORTH WIND GUSTS AS HIGH AS 45 MPH NEAR LAKE
SUPERIOR ALSO CAUSED CONSIDERABLE BLOWING SNOW...MAINLY ON 11/11.
MUCH LESS SNOW FELL OVER THE FAR SOUTH CENTRAL...WHERE MENOMINEE SAW
LESS THAN AN INCH OF THE WHITE STUFF DURING THE ENTIRE EVENT.

THE DEEP UPPER TROUGH THAT HELPED FUEL THE HISTORIC VETERANS DAY
STORM ALSO BROUGHT A PERIOD OF VERY COLD WEATHER TO UPPER MICHIGAN
FROM 11/9 UNTIL 11/21. ON MANY OF THESE DAYS...THE MERCURY NEVER
ROSE OUT OF TEENS AND THEN FELL BELOW ZERO AT NIGHT. NUMEROUS DAILY
RECORD LOW MAXIMUM AND MINIMUM TEMPERATURES WERE ESTABLISHED DURING
THIS PERIOD...ESPECIALLY ON 11/14 INTO 11/21. STAMBAUGH IN IRON
COUNTY REPORTED THE LOWEST TEMPERATURE...A BITTERLY COLD -17 ON
11/15. LIGHT TO MODERATE LAKE EFFECT SNOWS FELL DURING THIS COLD
PERIOD AS THE ARCTIC AIR PASSED OVER THE RELATIVELY WARM WATERS OF
LAKE SUPERIOR. AS MUCH AS 19 INCHES OF SNOW FELL AT BERGLAND DAM IN
ONTONAGON COUNTY ON 11/19 INTO EARLY 11/21 AS A STRONG DISTURBANCE
PASSING THROUGH THE UPPER LAKES BROUGHT A PERIOD OF LAKE ENHANCED
SNOWFALL TO MAINLY THE NORTHWEST WIND SNOW BELTS.

ANOTHER DEEP LOW PRESSURE SYSTEM PASSING THROUGH THE UPPER GREAT
LAKES ON 11/23 INTO 11/25 BROUGHT A PERIOD OF RAIN THAT CHANGED TO
MODERATE TO HEAVY SNOW ONCE COLDER AIR SURGED INTO THE AREA ON
11/24. UP TO 13 INCHES ACCUMULATED AT IRONWOOD INTO 11/25. THE
THERMOMETER BOTTOMED OUT AS LOW AS -18 AT HERMAN IN BARAGA COUNTY
EARLY ON 11/28 WITHIN THE ARCTIC AIRMASS THAT FOLLOWED THE DEPARTING
LOW. THIS LATEST COLD WAVE TRIGGERED MORE MODERATE TO HEAVY LAKE
EFFECT SNOWS ON 11/26 INTO THANKSGIVING MORNING ON 11/27.

ALTHOUGH THE NORTHWEST FLOW ALOFT ON THE WESTERN FLANK OF THE DEEP
UPPER TROUGH IN EASTERN NORTH AMERICA RESPONSIBLE FOR THE NOVEMBER
CHILL BROUGHT A STREAM OF COLD CANADIAN AIR INTO THE GREAT LAKES
DURING THE FIRST WEEK OF DECEMBER 2014 AND THE FINAL COUPLE OF DAYS
OF THE MONTH...MUCH OF THE MIDDLE OF DECEMBER WAS DOMINATED BY A
MORE MODERATE FLOW OF MARITIME POLAR PACIFIC AIR. THE RESULT WAS A
MEAN MONTHLY TEMPERATURE THAT RAN 2 TO 4 DEGREES ABOVE NORMAL.

SINCE THE MORE VARIABLE FLOW ALOFT ALLOWED SOME MOISTURE-LADEN LOW
PRESSURE SYSTEMS TO MOVE FARTHER NORTH...MONTHLY PRECIPITATION
TENDED TO RUN ABOVE NORMAL AT MOST PLACES AND UP TO 175 PERCENT OF
NORMAL AT HOUGHTON. BUT WITH THE ABSENCE OF ARCTIC AIR DURING MUCH
OF DECEMBER...SOME OF THIS PRECIPITATION FELL IN THE FORM OF RAIN...
AND LAKE EFFECT SNOWS WERE NOT AS FREQUENT OR HEAVY. SO...MONTHLY
SNOWFALL WAS BELOW AVERAGE ALMOST EVERYWHERE.

THE WARMEST WEATHER IN DECEMBER OCCURRED DURING THE PERIOD FROM
12/13 THROUGH 12/15...A TIME WHEN NUMEROUS DAILY RECORD HIGH
MINIMUM AND MAXIMUM TEMPERATURES WERE BROKEN AND MEAN DAILY
TEMPERATURES ROSE AS HIGH AS 25 DEGREES ABOVE NORMAL. AT SOME OF THE
WARMER LOCATIONS OVER THE SOUTH CENTRAL...THE MERCURY DID NOT FALL
BELOW 32 FROM LATE ON 12/12 UNTIL THE EVENING ON 12/16...AND SOME
PLACES IN THAT AREA LOST THEIR SNOW COVER. A LOW PRESSURE SYSTEM
MOVED FROM THE CENTRAL PLAINS ON 12/15 THROUGH THE UPPER GREAT LAKES
ON 12/16. WITH THE WARM AIR IN PLACE...THE PRECIPITATION BEGAN AS
RAIN BUT THEN CHANGED TO SNOW ON 12/16 AND 12/17 AS COLDER AIR
POURED BACK INTO THE UPPER LAKES. THE HEAVIEST PRECIPITATION AND
SNOW UP TO 12 INCHES  FELL OVER THE WEST. NEARLY 2 INCHES OF WATER
EQUIVALENT PRECIPITATION AND A FOOT OF SNOW FELL AT MOHAWK IN
KEWEENAW COUNTY FROM 12/15 THROUGH 12/17.

ANOTHER AREA OF LOW PRESSURE DEVELOPED IN THE CENTRAL PLAINS ON
12/26 AND MOVED NORTHEAST THROUGH THE NORTH CENTRAL GREAT LAKES ON
12/27...DROPPING A WIDESPREAD MODERATE TO HEAVY SNOW ACROSS MUCH OF
THE U.P. ALMOST 10 INCHES OF SNOW FELL AT NEWBERRY ON 12/27. VERY
COLD AIR FOLLOWED THIS LOW TO END THE YEAR. TEMPERATURES DROPPED AS
LOW AS -26 AT WAKEFIELD IN GOGEBIC COUNTY ON 12/31.

ALL CLIMATE DATA LISTED IN THIS PRODUCT ARE UNOFFICIAL. FOR OFFICIAL
DATA...PLEASE REFER TO THE NATIONAL CLIMATIC DATA CENTER. CONTACT
THE NATIONAL CLIMATIC DATA CENTER AT (828) 271-4800 OR
WWW.NCDC.NOAA.GOV. ALSO NOTE THIS DISCUSSION DOES NOT INCLUDE DATA
FROM CHIPPEWA AND MACKINAC COUNTIES.



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.