West and Central Upper Michigan Climate Summary for 2009

...WEST AND CENTRAL UPPER MICHIGAN CLIMATE SUMMARY FOR 2009...

...ABOUT THE SAME AVERAGE TEMPERATURE AS IN 2008...
...COOLEST YEAR SINCE 1996 AT MOST PLACES...
...TOP TEN COOLEST YEAR AT SOME PLACES...

...GENERALLY DRY FOR SECOND YEAR IN A ROW...

...SNOWFALL NEAR NORMAL BUT LESS THAN IN 2008 AT MOST PLACES...
_____________________________________________________________________
 ...SOME 2009 SUPERLATIVES...

HIGHEST CALENDAR YEAR SNOWFALL...290.2 INCHES AT ATLANTIC MINE IN HOUGHTON COUNTY

GREATEST SNOW DEPTH...52 INCHES JUST INLAND FROM GRAND MARAIS ON 2/27

LEAST SNOWFALL...44.9 INCHES AT MENOMINEE

HIGHEST PRECIPITATION...41.76 INCHES AT TWIN LAKES IN HOUGHTON COUNTY

LOWEST PRECIPITATION...23.59 INCHES AT AMASA IN IRON COUNTY

HIGHEST TEMPERATURE...94 AT HARVEY IN MARQUETTE COUNTY ON 5/20

LOWEST TEMPERATURE...-34 AT STAMBAUGH IN IRON COUNTY ON 1/26 AND AT
                                                               MARENISCO IN GOGEBIC COUNTY ON 3/2
____________________________________________________________________
...GENERAL 2009 OVERVIEW...

THE BIG WEATHER STORIES OF 2009 ACROSS UPPER MICHIGAN INCLUDED

...FRIGID WEATHER IN JANUARY THAT LED TO SIGNIFICANT ICE DEVELOPMENT ON THE GREAT LAKES IN FEBRUARY...

...SOME HEAVY SNOWS IN FEBRUARY DESPITE A PERIOD OF WARMTH...

...UNUSUALLY DRY WEATHER IN MARCH AND EARLY APRIL...

...A RETURN OF HEAVY PRECIPITATION IN LATE APRIL WITH A MAJOR SNOWSTORM OVER THE WEST HALF...

...BELOW NORMAL TEMPERATURES MOST OF THE TIME IN MAY THROUGH AUGUST...

...A HIGHLY VARIABLE PATTERN IN SEPTEMBER THROUGH DECEMBER THAT FEATURED ALTERNATING PERIODS OF VERY WARM AND DRY WEATHER WITH CHILLY AND WET CONDITIONS...

ON AVERAGE...THE ANNUAL MEAN TEMPERATURE IN 2009 AT LOCATIONS ACROSS
UPPER MICHIGAN WAS ALMOST THE SAME AS IN 2008...RUNNING ABOUT 0.8
DEGREE UNDER THE 30-YEAR NORMAL. AT MUNISING AND IRON MOUNTAIN...
2009 GOES DOWN IN THE RECORD BOOKS AS THE FIFTH AND TENTH COOLEST
YEAR RESPECTIVELY ON RECORD SINCE 1948. THE COOLEST PERIODS WERE IN
JANUARY...MAY THROUGH AUGUST...OCTOBER...AND DECEMBER. MAY THROUGH
JULY 2009 WAS PARTICULARLY CHILLY AND RANKED AS ONE OF THE TOP THREE
COOLEST MAY THROUGH JULY STRETCHES ON RECORD AT MOST PLACES. ALSO
LIKE 2008...PRECIPITATION AT MOST PLACES IN THE U.P. IN 2009 WAS
BELOW THE 30-YEAR NORMAL. THE WETTEST LOCATIONS WERE OVER THE HIGHER
TERRAIN OF THE WEST FROM THE PORCUPINE MOUNTAINS TO ONTONAGON AND
SOUTH OF HOUGHTON AS WELL AS FROM MUNISING TO GRAND MARAIS... WHERE
LOCALLY HEAVY LAKE ENHANCED SNOWS OCCURRED MORE FREQUENTLY IN
JANUARY...FEBRUARY...AND DECEMBER. ON AVERAGE...THE PRECIPITATION
TOTAL ACROSS UPPER MICHIGAN IN 2009 WAS 2.75 INCHES BELOW THE
30-YEAR MEAN. OVERALL...SNOWFALL WAS LESS THAN IN 2008 AT MOST
LOCATIONS...TENDING CLOSER TO NORMAL IN 2009.

AN UPPER TROUGH OVER SOUTHEAST CANADA THAT HAD BEEN IN PLACE SINCE
MID NOVEMBER 2008 LOCKED ARCTIC AIR IN PLACE OVER THE UPPER GREAT
LAKES IN JANUARY 2009...RESULTING IN AN AVERAGE MONTHLY TEMPERATURE
THAT RAN 3 TO 7 DEGREES BELOW NORMAL. THE MONTH WAS SO COLD THAT
MOST PLACES EXPERIENCED A TOP 10 COLDEST JANUARY. IN FACT AT IRON
MOUNTAIN...JANUARY 2009 IS NOW THE SECOND COLDEST FIRST MONTH ON
RECORD. MOST LOCATIONS NEVER SAW THE THERMOMETER RISE ABOVE THE
FREEZING MARK DURING THIS FRIGID MONTH. MAJOR ARCTIC OUTBREAKS THAT
FEATURED WIDESPREAD SUB ZERO MINIMUM TEMPERATURES AND SOME DAYS WHEN
THE COLDER INTERIOR LOCATIONS NEVER SAW THE THERMOMETER REACH ZERO
EVEN DURING THE DAYLIGHT OCCURRED ON 1/13 TO 1/17 AND 1/24 TO 1/28.
AT AT LEAST ONE OF THE COLDER PLACES...THE MERCURY FELL UNDER 30
BELOW ON 1/15...1/16... 1/26...AND 1/27...INCLUDING -34 AND -33 AT
STAMBAUGH IN IRON COUNTY ON 1/26 AND 1/27. SOME OF THESE COLDER
SPOTS REPORTED A SUB ZERO MINIMUM ON AS MANY AS 25 DAYS IN JANUARY.
WITH THE STEADY FLOW OF ARCTIC AIR...LAKE EFFECT SNOWS IN JANUARY
WERE ON THE HEAVY SIDE IN AREAS FAVORED BY THE COLD NORTHWEST
FLOW...WITH MONTHLY TOTALS APPROACHING OR EXCEEDING 100 INCHES AT
SOME OF THE HIGHER TERRAIN OVER THE WEST. BUT SINCE LARGER SCALE
STORM SYSTEMS WERE INFREQUENT IN JANUARY 2009...PLACES AWAY FROM
LAKE SUPERIOR TENDED TO SEE BELOW NORMAL PRECIPITATION AND SNOWFALL.

MOST LOCATIONS IN UPPER MICHIGAN SAW THE THERMOMETER RISE ABOVE THE
FREEZING MARK FOR THE FIRST TIME IN 2009 LATE ON 1/31 OR EARLY 2/1
AS AN ALBERTA CLIPPER LOW PRESSURE SYSTEM TRACKED ACROSS ONTARIO.
ALTHOUGH THIS WARMUP WAS BRIEF AND FOLLOWED BY THE RETURN OF COLDER
AIR...STRONG WINDS AND SOME HEAVY LAKE EFFECT SNOWS ON 2/1 INTO
2/4...THE WARMUP SIGNALED AN EASING OF THE TROUGH IN EASTERN CANADA
AND A MORE VARIABLE WEATHER PATTERN THAT WOULD LINGER INTO APRIL. A
PERIOD OF UNSEASONABLE WARMTH PREVAILED ON 2/7 THROUGH 2/12...WITH
MANY LOCATIONS REPORTING AT LEAST SOME DAILY RECORD HIGH MAXIMUM AND
MINIMUM TEMPERATURES. MENOMINEE REPORTED A HIGH OF 52 ON 2/10. AT
SOME PLACES...THE THERMOMETER NEVER FELL BELOW FREEZING ON 2/10 AND
2/11...WITH UNUSUAL MID-WINTER RAIN FALLING. ALTHOUGH COLDER WEATHER
WAS GENERALLY THE RULE AFTER MID FEBRUARY...THE UNPRECEDENTED WARMTH
THE SECOND WEEK RESULTED IN A MONTHLY MEAN TEMPERATURE A BIT ABOVE
NORMAL AT MOST PLACES. DESPITE THAT WARM SPELL...THE CHILL FROM LATE
2008 THROUGH JANUARY 2009 CONTRIBUTED TOWARD THE DEVELOPMENT OF
NEARLY CONTINUOUS ICE COVER ON ALL OF LAKE SUPERIOR BY LATE IN
FEBRUARY EXCEPT IN THE MIDDLE OF THE EAST HALF OF THE LAKE...WHERE
THE WATER IS DEEPEST AND TYPICALLY THE LAST TO FREEZE. THE EXTENSIVE
ICE COVER SURROUNDING THE KEWEENAW PENINSULA CAUSED THE MONTHLY
TEMPERATURE THERE IN FEBRUARY TO RUN LOWER RELATIVE TO NORMAL THAN
AT MOST OF THE REST OF THE AREA.

ALTHOUGH THE MORE CHANGEABLE WEATHER PATTERN EASED THE CHILL IN
FEBRUARY...THE CHANGE ALSO ALLOWED MORE DISTURBANCES TO IMPACT THE
UPPER GREAT LAKES. WIDESPREAD PRECIPITATION EVENTS OCCURRED ON 2/2
INTO 2/4...2/9 INTO 2/10...2/17 INTO 2/20...2/21 INTO 2/23...AND
2/26 INTO 2/27. FEBRUARY PRECIPITATION AND SNOWFALL RAN FROM NEAR
NORMAL OVER THE WEST TO WELL ABOVE NORMAL ACROSS THE CENTRAL AND
EAST...WHERE THE LESS EXTENSIVE ICE COVER ON SUPERIOR ALLOWED FOR
SIGNIFICANT LAKE ENHANCEMENT OF THE SNOWS. THE NORTH CENTRAL AND
ALGER COUNTY IN PARTICULAR WERE HARD HIT BY LAKE EFFECT SNOW AND
SEVERAL BLIZZARDS DURING FEBRUARY THAT CLOSED M-28 BETWEEN MUNISING
AND MARQUETTE. IN FACT...RESIDENTS OF MUNISING ENDURED THE SNOWIEST
FEBRUARY ON RECORD. AS MUCH AS 35 INCHES OF THE WHITE STUFF BURIED
EBEN JUNCTION IN WESTERN ALGER COUNTY DURING THE EVENT ON 2/21 INTO
2/23.

THE ICE COVER ON THE GREAT LAKES REACHED ITS MAXIMUM EXTENT IN EARLY
MARCH FOLLOWING A COLD SPELL THAT DROPPED THE MERCURY TO -34 AT
MARENISCO IN GOGEBIC COUNTY AT DAWN ON 3/2. AFTER THE STORMINESS OF
LATE FEBRUARY...MARCH AND THE FIRST HALF OF APRIL TENDED TO BE
RATHER UNEVENTFUL AS A BUILDING HIGH PRESSURE RIDGE OVER THE UPPER
GREAT LAKES AND ADJOINING CANADA TENDED TO SHUNT THE MAJORITY OF THE
DEEP LOW PRESSURE SYSTEMS TO THE SOUTH AND WEST OF UPPER MICHIGAN.
AT MOST PLACES...ESPECIALLY WEST OF MUNISING AND MANISTIQUE...MARCH
ENDED UP IN THE LIST OF TOP TEN DRIEST AND LEAST SNOWY ON RECORD. A
RETREAT OF THE PERSISTENT RIDGE TO THE WEST AT TIMES DID ALLOW
PERIODIC INVASIONS OF ARCTIC AIR IN MARCH AND THE FIRST HALF OF
APRIL...BUT THERE WERE ALSO PERIODS WHEN TEMPERATURES SURGED WELL
ABOVE NORMAL. THE WARMEST WEATHER IN MARCH OCCURRED NEAR MID
MONTH...WHEN THE MERCURY PEAKED IN THE 60S AT MANY PLACES ON 3/17
AND AS HIGH AS 66 AT MENOMINEE. OVERALL...THE PERIODS OF WARM AND
COLD BALANCED OUT TO RESULT IN A MEAN MARCH TEMPERATURE WITHIN A
DEGREE OF NORMAL.

THE DRY...RELATIVELY UNEVENTFUL WEATHER THAT CONTINUED UNDER THE
PERSISTENT RIDGE THE FIRST HALF OF APRIL ALLOWED FOR A GRADUAL MELT
OF THE WINTER SNOW AND LITTLE IF ANY SPRING FLOODING. BUT A DRAMATIC
CHANGE IN WEATHER PATTERN OCCURRED AT MID MONTH THAT ALLOWED SEVERAL
MOISTURE-LADEN LOW PRESSURE SYSTEMS TO IMPACT THE UPPER GREAT
LAKES...BRINGING A WELCOME RETURN OF SOME HEAVY PRECIPITATION AFTER
4/17 TO THE WEST HALF. THE MOST SIGNIFICANT OF THESE STORMS CAUSED A
LATE WINTER BLITZ OF WET...HEAVY SNOW WEST OF MARQUETTE AND IRON
MOUNTAIN ON 4/19 INTO THE EVENING ON 4/21. AS MUCH AS OR MORE THAN
2.50 INCHES OF WATER EQUIVALENT PRECIPITATION AND 2 FEET OF SNOW
FELL OVER SOME OF THE HIGHER TERRAIN LOCATIONS OF THE WEST HALF
DURING THIS EVENT. WARM WEATHER RETURNED QUICKLY AFTER THIS LATE
SEASON SNOW...WITH TEMPERATURES SURGING AS HIGH AS 82 AT RANDVILLE
IN DICKINSON COUNTY ON 4/24. THE INTERACTION BETWEEN THIS SUMMER-
LIKE AIRMASS AND A SHARP COLD FRONT TRIGGERED SOME STRONG
THUNDERSTORMS DURING THE NIGHT ON 4/24-4/25 THAT BROUGHT LOCALLY
HEAVY RAIN TO PORTIONS OF MAINLY THE WEST HALF OF UPPER MICHIGAN
ALONG WITH LARGE HAIL OR DAMAGING WINDS AT A FEW SPOTS THERE AS
WELL. AFTER TWO MORE HEAVY RAINS LATE IN THE MONTH...SOME LOCATIONS
OVER THE WEST HALF REPORTED A TOP TEN WETTEST APRIL. ALTHOUGH THERE
WERE SOME WARM PERIODS...THE OVERALL MONTHLY AVERAGE TEMPERATURE IN
APRIL WAS A BIT BELOW NORMAL AT MOST SPOTS.

THE WEATHER PATTERN IN MAY THROUGH AUGUST FEATURED A FAIRLY
PERSISTENT UPPER TROUGH IN SOUTHEAST CANADA. THE NORTHWEST FLOW
ALOFT ON THE WESTERN FLANK OF THIS FEATURE FUNNELED COOL CANADIAN
AIR INTO THE UPPER GREAT LAKES MOST OF THE TIME...HELPING TO PUSH
THE MAY THROUGH AUGUST 2009 123-DAY MEAN TEMPERATURE TO ONE OF THE
TOP 10 LOWEST LEVELS ON RECORD AT A FEW SPOTS. MEAN MONTHLY
TEMPERATURES IN MAY...JUNE AND AUGUST ENDED UP ABOUT 1 TO 3 DEGREES
BELOW NORMAL. JULY WAS PARTICULARLY COOL WITH THE MERCURY AVERAGING
3 TO 6 DEGREES BELOW AVERAGE...ENOUGH TO QUALIFY THAT MONTH AS ONE
OF THE TOP 3 COOLEST SEVENTH MONTHS ON RECORD ALMOST EVERYWHERE.

THE COOLEST PERIODS IN THE 2009 WARM SEASON WERE LATE MAY INTO MID
JUNE WHEN A NUMBER OF KILLING FROSTS DELAYED THE GROWING SEASON...
THE FIRST HALF OF JULY...AND LATE AUGUST. MINIMUM TEMPERATURES IN
THE 30S WERE FAIRLY COMMON OVER THE INTERIOR DURING THE COOLER
STRETCHES...ESPECIALLY IN LATE MAY AND EARLY JUNE WHEN THERE
NUMEROUS REPORTS OF LOWS IN THE 20S AWAY FROM THE MODERATING
INFLUENCE OF THE LAKES. ON SOME OF THE CLOUDY...RAINY DAYS IN EARLY
JUNE...MAXIMUM TEMPERATURES GOT STUCK IN THE 40S OVER THE HIGHER
TERRAIN AS WELL. ALTHOUGH THERE WERE TWO FAIRLY WARM STRETCHES IN
THE SECOND HALF OF JUNE AND MID AUGUST...THE THERMOMETER REACHED 90
OR HIGHER AT ANY ONE SPOT ON ONLY A FEW DAYS...5/20...6/23...6/24...
8/13...AND 8/15. HARVEY IN MARQUETTE COUNTY LOGGED THE ANNUAL
HIGHEST TEMPERATURE OF 94 IN THE BRIEF HOT SPELL ON 5/20...WHEN THE
COMBINATION OF RECENT DRYNESS...RECORD HIGH MAXIMUM TEMPERATURES...
LOW RELATIVE HUMIDITY...AND A GUSTY SOUTHWEST WIND TO 50 MPH AIDED
THE DEVELOPMENT OF WILDFIRES. THE MOST DAMAGING OF THESE FIRES
OCCURRED IN BARAGA COUNTY EAST OF L`ANSE AND IN MARQUETTE COUNTY
WEST OF ISHPEMING.

SINCE THE NORTHWEST FLOW ALOFT FOR THE MOST PART SHUNTED THE
WARMER...MOISTER AIRMASSES TO THE SOUTH...MAY THROUGH JULY WERE
GENERALLY DRY. THERE WERE OCCURRENCES OF SOME HEAVIER RAINS AT
TIMES...ESPECIALLY OVER THE SOUTHEAST HALF IN MAY AND ACROSS THE
NORTHWEST IN JUNE. FORTUNATELY...THE BELOW NORMAL TEMPERATURES
REDUCED EVAPORATION...LIMITING THE IMPACT OF THE RELATIVE LACK OF
RAIN. THE COMBINATION OF BELOW NORMAL TEMPERATURES AND MOISTURE ALSO
LIMITED THE NUMBER OF DAYS WITH THUNDERSTORMS...AND SEVERE WEATHER
WAS ALMOST COMPLETELY ABSENT DURING THE WARM SEASON IN 2009. THE
STORM PREDICTION CENTER IN NORMAN OKLAHOMA NEVER ISSUED A SEVERE
THUNDERSTORM WATCH FOR ANY PART OF UPPER MICHIGAN IN 2009. SINCE THE
UPPER TROUGH DEEPENED INTO THE GREAT LAKES AT TIMES IN AUGUST...
WELCOME RAINS RETURNED MORE OFTEN TOWARD THE END OF SUMMER...
REVERSING A TREND IN RECENT YEARS FOR AUGUST TO BE DRY. THE
NORTHWEST PORTIONS OF THE U.P. SAW THE HEAVIEST RAIN...WITH
PRECIPITATION TOTALS THERE IN AUGUST RUNNING UP TO 200 PERCENT OF
NORMAL AND AS MUCH AS 7.39 INCHES AT ROCKLAND IN ONTONAGON COUNTY.

WARM AND DRY CONDITIONS PREVAILED MOST OF SEPTEMBER AS A BUILDING
RIDGE DISPLACED THE TROUGH THAT HAD DOMINATED THE WEATHER OVER THE
GREAT LAKES SINCE MAY. THE WARMEST PERIOD WAS DURING THE SECOND
WEEK...WHEN DAYTIME HIGHS IN THE 80S WERE THE NORM AWAY FROM THE
COOLING INFLUENCE OF THE LAKES. THE MONTHLY MEAN TEMPERATURE
FINISHED 4 TO 6 DEGREES ABOVE NORMAL...AND SEPTEMBER 2009 ENDED UP
IN THE LIST OF TOP 10 WARMEST NINTH MONTHS AT MANY LOCATIONS. THE
RIDGE ALSO SUPPRESSED RAINFALL ACROSS THE UPPER GREAT LAKES...
ESPECIALLY OVER THE EAST. NEWBERRY RECORDED A MERE 0.51 INCH OF RAIN
IN SEPTEMBER...JUST 15 PERCENT OF NORMAL. A PAIR OF LATE MONTH STORM
SYSTEMS BROUGHT GENEROUS RAINS TO MUCH OF THE WEST AND CENTRAL...BUT
MOST PLACES EVEN THERE REPORTED NO MORE THAN 50 TO 75 PERCENT OF THE
TYPICAL SEPTEMBER RAINFALL.

THOSE TWO LATE SEPTEMBER LOW PRESSURE SYSTEMS HERALDED A CHANGE IN
THE UPPER AIR PATTERN TO A DEEP TROUGH THAT PERSISTED FROM THE LAST
DAYS OF SEPTEMBER UNTIL ALMOST THE END OF OCTOBER. THE RESULT WAS A
COOL...WET OCTOBER. MEAN MONTHLY TEMPERATURES RAN 3 TO 5 DEGREES
BELOW AVERAGE...AND MANY PLACES EXPERIENCED A TOP 10 COOLEST OCTOBER
RIGHT AFTER SEPTEMBER HAD BEEN SIMILARLY WARM. LIKEWISE...WITH 4 TO
7 INCHES OF PRECIPITATION THAT RAN CLOSE TO 200 PERCENT OF THE MEAN
AT SOME LOCATIONS...MONTHLY PRECIPITATION WAS ALSO AMONG THE TOP TEN
HIGHEST OF ANY OCTOBER ON RECORD AS A PARADE OF MOISTURE LADEN LOW
PRESSURE SYSTEMS IMPACTED THE AREA. WHILE MAXIMUM TEMPERATURES IN
THE 60S WERE UNCOMMON IN OCTOBER...DAYTIME HIGHS IN THE CHILLY 30S
WERE OBSERVED AT SOME SITES DURING THE COOLEST PERIODS FROM 10/10
THROUGH 10/17 AND AGAIN ON 10/21 THROUGH 10/25. THE FIRST HEAVY
SNOWS OF THE SEASON ALSO FELL IN OCTOBER...MAINLY OVER THE HIGHER
TERRAIN OF THE WEST AND NORTH CENTRAL WHERE A FOOT OR MORE
ACCUMULATED AT SOME PLACES.

IN LATE OCTOBER AND EARLY NOVEMBER...YET ANOTHER FLIP FLOP OCCURRED
IN THE WEATHER PATTERN ACROSS NORTH AMERICA. THIS TIME...A WEST-TO-
EAST FLOW OF RELATIVELY MILD PACIFIC AIR DEVELOPED BY THE END OF THE
FIRST WEEK OF NOVEMBER...SETTING THE STAGE FOR A WARM...DRY MONTH IN
UPPER MICHIGAN WITH RECORD LOW SNOWFALL AT MANY LOCATIONS. WITH
MONTHLY TEMPERATURE DEPARTURES BETWEEN 6 AND 9 DEGREES ABOVE
NORMAL...NOVEMBER 2009 LANDED IN THE LIST OF TOP THREE WARMEST
NOVEMBERS EVERYWHERE. IN FACT...RESIDENTS OF HOUGHTON EXPERIENCED
THE WARMEST NOVEMBER ON RECORD SINCE 1952. THE MERCURY NOT ONLY DID
NOT FALL BELOW ZERO AT ANY PLACE IN NOVEMBER...BUT THERE WERE NO
READINGS UNDER 10 ABOVE. SINCE THE ZONAL FLOW ALOFT SHUNTED THE
MAJORITY OF THE MOISTURE LADEN STORM SYSTEMS SOUTH OF THE UPPER
GREAT LAKES IN NOVEMBER...TOTAL PRECIPITATION TENDED TO BE ONE THIRD
TO ONE HALF THE NOVEMBER MEAN. BECAUSE THE ABSENCE OF ARCTIC AIR
ALSO GREATLY LIMITED LAKE EFFECT SNOW...A NUMBER OF PLACES MEASURED
LESS THAN AN INCH OF SNOW IN NOVEMBER...10 PERCENT OR LESS OF NORMAL.

THE WEATHER ROLLER COASTER RIDE CONTINUED IN DECEMBER WITH THE
DEVELOPMENT OF A BLOCKING RIDGE IN NORTHERN CANADA AND THE NORTH
ATLANTIC CAUSING A MORE PERSISTENT UPPER TROUGH AGAIN IN SOUTHEAST
CANADA AND THE NORTHEAST U.S. THE RESULT FOR UPPER MICHIGAN WAS A
COLDER THAN NORMAL DECEMBER WITH ABOVE NORMAL PRECIPITATION AND
SNOWFALL AT MANY PLACES. AS USUAL IN DECEMBER...THE HEAVIEST SNOW
AND PRECIPITATION OCCURRED NEAR LAKE SUPERIOR...WITH THE FREQUENT
PASSAGE OF COLD CANADIAN AIRMASSES OVER THE RELATIVELY WARM WATERS
OF LAKE SUPERIOR RESULTING IN NUMEROUS LAKE EFFECT SNOW SHOWERS. THE
SNOW BELTS OVER THE WEST SAW THE GREATEST DECEMBER SNOWFALL...WITH
100 INCHES OR MORE OF THE WHITE STUFF AND 5 TO 6 INCHES OF LIQUID
EQUIVALENT PRECIPITATION FALLING AT A FEW PLACES. THESE TOTAL WERE
AS MUCH AS 150 PERCENT OF NORMAL.

BUT EVEN AWAY FROM THE FAVORED LAKE EFFECT AREAS...SNOW AND WATER
EQUIVALENT PRECIPITATION RAN ABOVE NORMAL BECAUSE THE MEAN UPPER
TROUGH ALLOWED SEVERAL MOISTURE LADEN LARGER SCALE LOW PRESSURE
SYSTEMS TO IMPACT THE GREAT LAKES. SOME PLACES ENDURED A TOP TEN
WETTEST AND SNOWIEST DECEMBER. AS MUCH AS 29.5 INCHES OF SNOW FELL
AT IRONWOOD ON 12/8 AND 12/9 AS THE MOST POWERFUL OF THESE STORM
SYSTEMS MOVED THROUGH THE GREAT LAKES. THERE WAS A WINTRY MIX OF
PRECIPITATION AROUND CHRISTMAS AS ANOTHER DEEP LOW PRESSURE SYSTEM
DREW UNSEASONABLY WARM AIR BRIEFLY INTO THE UPPER GREAT LAKES.
DESPITE THIS RELATIVE WARMTH AROUND CHRISTMAS...OVERALL DECEMBER
TEMPERATURES ENDED UP 1 TO 2 DEGREES BELOW AVERAGE.
____________________________________________________________________
    GREAT LAKES WATER LEVELS (FEET ABOVE MEAN SEA LEVEL)

                                           LAKE SUPERIOR   LAKE MICHIGAN-HURON
                                           OBS/NORM /DIFF     OBS/NORM /DIFF
01/01/09  DAILY MEAN    600.9/601.6/-0.7     577.5/578.5/-1.0
02/01/09  DAILY MEAN    600.8/601.3/-0.5     577.4/578.4/-1.0
03/01/09  DAILY MEAN    600.7/601.2/-0.5     577.6/578.5/-0.9
04/01/09  DAILY MEAN    600.7/601.3/-0.6     577.9/578.8/-0.9
05/01/09  DAILY MEAN    601.1/601.6/-0.5     578.4/579.1/-0.7
06/01/09  DAILY MEAN    601.3/601.9/-0.6     578.7/579.3/-0.6
07/01/09  DAILY MEAN    601.5/602.1/-0.6     578.9/579.4/-0.5
08/01/09  DAILY MEAN    601.5/602.2/-0.7     578.9/579.3/-0.4
09/01/09  DAILY MEAN    601.8/602.2/-0.4     578.8/579.1/-0.3
10/01/09  DAILY MEAN    601.7/602.1/-0.4     578.4/578.9/-0.5
11/01/09  DAILY MEAN    601.6/602.0/-0.4     578.5/578.7/-0.2
12/01/09  DAILY MEAN    601.5/601.7/-0.2     578.3/578.6/-0.3
12/31/09  DAILY MEAN    601.3/601.6/-0.3     578.1/578.5/-0.4

GREAT LAKES WATER LEVELS IN 2009 SLOWLY RECOVERED TOWARD THE LONG
TERM AVERAGE...PROBABLY DUE MAINLY TO COOLER TEMPERATURES OVER THE
LAST 2 YEARS THAT HAVE REDUCED EVAPORATION.
____________________________________________________________________
...STATION REPORTS IN 2009...

NWS MARQUETTE STATISTICS (RECORD 1961 TO PRESENT)

...TIED WITH 1980 AS 15TH COOLEST CALENDAR YEAR SINCE 1961...
...19TH SNOWIEST CALENDAR YEAR...
...29TH DRIEST YEAR...

                                                                            2009 (2008)    1971-2000        2009
                                                                            OBSERVED      NORMAL     DEPARTURE
ANNUAL AVERAGE TEMPERATURE (F)     38.8 (38.9)            39.6               -0.8

ANNUAL AVERAGE HIGH TEMP (F)             48.2 (48.3)            49.3               -1.1

ANNUAL AVERAGE LOW TEMP (F)              29.4 (29.5)            29.9               -0.5

PRECIPITATION (INCHES)                          33.60 (33.79)        36.32             -2.72

SNOWFALL (INCHES)                                  188.6 (244.3)        184.7              +3.9

LOWEST TEMPERATURE (F)                     -20 ON 1/27 AND 3/2

HIGHEST TEMPERATURE (F)                    89 ON 5/20
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MARQUETTE CITY STATISTICS (RECORD 1875 TO PRESENT)

...22ND DRIEST YEAR SINCE 1875...
...32ND LEAST SNOWY CALENDAR YEAR...
...TIED WITH FIVE YEARS AS 78TH COOLEST YEAR...

                                                                           2009 (2008)     1971-2000           2009
                                                                           OBSERVED       NORMAL      DEPARTURE
ANNUAL AVERAGE TEMPERATURE (F)    42.5 (42.1)            42.8                  -0.3

ANNUAL AVERAGE HIGH TEMP (F)            49.1 (49.1)            50.8                  -1.7

ANNUAL AVERAGE LOW TEMP (F)             35.8 (35.1)            34.8                 +1.0

PRECIPITATION (INCHES)                          26.58 (25.84)       30.14                -3.56

SNOWFALL (INCHES)                                   93.8 (111.9)         120.8               -27.0

LOWEST TEMPERATURE (F)                      -6 ON 1/16

HIGHEST TEMPERATURE (F)                    91 ON 5/20
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IRONWOOD STATISTICS (RECORD 1901 TO PRESENT)

...13TH DRIEST YEAR SINCE 1901...
...TIED WITH 1985 AS 23RD COOLEST YEAR...
...26TH SNOWIEST CALENDAR YEAR...

                                                                              2009 (2008)      1971-2000           2009
                                                                              OBSERVED        NORMAL       DEPARTURE
ANNUAL AVERAGE TEMPERATURE (F)       39.0 (38.2)             39.5                  -0.5

ANNUAL AVERAGE HIGH TEMP (F)               48.6 (48.4)             49.8                  -1.2

ANNUAL AVERAGE LOW TEMP (F)                29.3 (28.0)             29.2                 +0.1

PRECIPITATION (INCHES)                           28.80 (31.38)          34.52               -5.72

SNOWFALL (INCHES)                                   180.9 (179.2)          179.5               + 1.4

LOWEST TEMPERATURE (F)                      -26 ON 1/17

HIGHEST TEMPERATURE (F)                     89 ON 6/23
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IRON MOUNTAIN STATISTICS (PARTIAL RECORD 1931 TO 1948...COMPLETE
                          RECORD 1949 TO PRESENT)

...10TH COOLEST YEAR SINCE 1948...
...20TH DRIEST YEAR...
...24TH SNOWIEST CALENDAR YEAR...

                                                                               2009 (2008)     1971-2000           2009
                                                                               OBSERVED        NORMAL      DEPARTURE
ANNUAL AVERAGE TEMPERATURE (F)        40.9 (41.1)             42.0                  -1.1

ANNUAL AVERAGE HIGH TEMP (F)                52.0 (52.3)             53.3                  -1.3

ANNUAL AVERAGE LOW TEMP (F)                 29.8 (29.9)             30.7                  -0.9

PRECIPITATION (INCHES)                            26.51 (24.55)          30.10                -3.59

SNOWFALL (INCHES)                                       64.4 (83.1)             64.6                 - 0.2

LOWEST TEMPERATURE (F)                         -24 ON 1/26

HIGHEST TEMPERATURE (F)                         93 ON 6/23 AND 6/24
---------------------------------------------------------------------
NEWBERRY STATISTICS (RECORD 1911 TO PRESENT)

...28TH SNOWIEST CALENDAR YEAR SINCE 1911...
...42ND DRIEST YEAR...
...43RD COOLEST YEAR...

                                                                             2009 (2008)     1971-2000          2009
                                                                             OBSERVED       NORMAL       DEPARTURE
ANNUAL AVERAGE TEMPERATURE (F)      40.9 (41.2)             41.1                -0.2

ANNUAL AVERAGE HIGH TEMP (F)              49.0 (49.3)             50.6                -1.6

ANNUAL AVERAGE LOW TEMP (F)               32.8 (33.1)             31.6               +1.2

PRECIPITATION (INCHES)                          30.70 (39.01)          32.95              -2.25

SNOWFALL (INCHES)                                  127.8 (208.6)          122.0              + 5.8

LOWEST TEMPERATURE (F)                       -15 ON 3/2

HIGHEST TEMPERATURE (F)                       87 ON 6/24
---------------------------------------------------------------------
HOUGHTON COUNTY AIRPORT STATISTICS (RECORD 1952 TO 2000...
                                             2004-PRESENT)

...TIED WITH 1954...1957...AND 2008 AS 6TH COOLEST YEAR SINCE 1952...
...22ND SNOWIEST CALENDAR YEAR...
...23RD DRIEST YEAR...

                                                                              2009 (2008)     1971-2000          2009
                                                                              OBSERVED       NORMAL       DEPARTURE
ANNUAL AVERAGE TEMPERATURE (F)       39.1 (39.1)            40.8                  -1.7

ANNUAL AVERAGE HIGH TEMP (F)               47.6 (47.7)            48.6                  -1.0

ANNUAL AVERAGE LOW TEMP (F)                30.7 (30.6)            33.0                  -2.3

PRECIPITATION (INCHES)                            31.48 (26.23)         34.13               -2.65

SNOWFALL (INCHES)                                    209.8 (214.5)         221.9               -12.1

LOWEST TEMPERATURE (F)                       -20 ON 2/28

HIGHEST TEMPERATURE (F)                       90 ON 5/20 AND 8/15
---------------------------------------------------------------------
ONTONAGON STATISTICS (RECORD 1978 TO PRESENT)

...6TH SNOWIEST CALENDAR YEAR SINCE 1978...
...TIED WITH 1997 AS 11TH COOLEST YEAR...
...12TH WETTEST YEAR...

                                                                              2009 (2008)    1971-2000          2009
                                                                              OBSERVED      NORMAL      DEPARTURE
ANNUAL AVERAGE TEMPERATURE (F)       41.8 (41.7)           42.6                 -0.8

ANNUAL AVERAGE HIGH TEMP (F)               52.5 (52.4)           53.2                 -0.7

ANNUAL AVERAGE LOW TEMP (F)                31.1 (31.0)           32.0                 -0.9

PRECIPITATION (INCHES)                            35.25 (28.69)        33.73             +1.52

SNOWFALL (INCHES)                                    218.9 (202.0)        188.7              +30.2

LOWEST TEMPERATURE (F)                       -27 ON 2/28

HIGHEST TEMPERATURE (F)                       92 ON 8/15
---------------------------------------------------------------------
MUNISING STATISTICS (RECORD 1948 TO PRESENT)

...5TH COOLEST YEAR SINCE 1948...
...15TH SNOWIEST CALENDAR YEAR...
...19TH WETTEST YEAR...

                                                                              2009 (2008)
                                                                              OBSERVED
ANNUAL AVERAGE TEMPERATURE (F)       40.0 (40.4)

ANNUAL AVERAGE HIGH TEMP (F)               47.3 (48.1)

ANNUAL AVERAGE LOW TEMP (F)                32.8 (32.6)

PRECIPITATION (INCHES)                            37.00 (39.01)

SNOWFALL (INCHES)                                    176.3 (219.4)

LOWEST TEMPERATURE (F)                       -9 ON 1/27

HIGHEST TEMPERATURE (F)                     84 ON 8/15
---------------------------------------------------------------------
MANISTIQUE STATISTICS (RECORD 1948 TO PRESENT)

...20TH DRIEST YEAR SINCE 1948...
...21ST SNOWIEST CALENDAR YEAR...
...TIED WITH 1970 AS 25TH COOLEST YEAR...

                                                                              2009 (2008)
                                                                              OBSERVED
ANNUAL AVERAGE TEMPERATURE (F)       40.9 (41.4)

ANNUAL AVERAGE HIGH TEMP (F)               49.0 (49.3)

ANNUAL AVERAGE LOW TEMP (F)                32.8 (33.5)

PRECIPITATION (INCHES)                            27.09 (31.42)

SNOWFALL (INCHES)                                      74.4 (120.8)

LOWEST TEMPERATURE (F)                         -11 ON 1/27

HIGHEST TEMPERATURE (F)                         81 ON 6/24 AND 6/26
---------------------------------------------------------------------
WATTON (BARAGA COUNTY) STATISTICS

                                                                             2009 (2008)
                                                                             OBSERVED
ANNUAL AVERAGE TEMPERATURE (F)      37.8 (37.6)

PRECIPITATION (INCHES)                           27.82 (28.44)

SNOWFALL (INCHES)                                   119.3 (137.4)

LOWEST TEMPERATURE (F)                        -21 ON 2/28

HIGHEST TEMPERATURE (F)                        87 ON 5/20
---------------------------------------------------------------------
GARDEN CORNERS (DELTA COUNTY) STATISTICS

                                 2009 (2008)
                                  OBSERVED
ANNUAL AVERAGE TEMPERATURE (F)        39.9 (40.1)

PRECIPITATION (INCHES)                             29.64 (30.20)

SNOWFALL (INCHES)                                       75.8 (105.3)
_____________________________________________________________________

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.



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