RSS FeedsIssued by NWS Detroit/Pontiac, MI
000
CXUS53 KDTX 022133
CLMDTW
CLIMATE REPORT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
430 PM EST TUE DEC 2 2008
...................................
...THE DETROIT CLIMATE SUMMARY FOR THE MONTH OF NOVEMBER 2008...
CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1870 TO 2008
WEATHER OBSERVED NORMAL DEPART
VALUE DATE(S) VALUE FROM
NORMAL
................................................
TEMPERATURE (F)
RECORD
HIGH 81 11/19/1950
LOW 0 10/07/5881
HIGHEST 71 11/05 MM MM
11/04
LOWEST 15 11/23 MM MM
AVG. MAXIMUM 45.7 47.8 -2.1
AVG. MINIMUM 32.3 33.5 -1.2
MEAN 39.0 40.7 -1.7
DAYS MAX >= 90 0 0.0 0.0
DAYS MAX <= 32 1 1.4 -0.4
DAYS MIN <= 32 17 15.8 1.2
DAYS MIN <= 0 0 0.0 0.0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 5.68 1982
MINIMUM 0.19 1904
TOTALS 3.31 2.66 0.65
DAILY AVG. 0.11 0.09 0.02
DAYS >= .01 12 MM MM
DAYS >= .10 6 MM MM
DAYS >= .50 3 MM MM
DAYS >= 1.00 1 MM MM
GREATEST
24 HR. TOTAL 1.09 11/14 TO 11/15
STORM TOTAL MM
(MM/DD(HH)) MM
SNOWFALL (INCHES)
RECORDS
MAXIMUM 11.8/1966
24 HR TOTAL 0.3 MM
TOTALS 2.2 2.7 -0.5
LIQUID EQUIV 0.22 0.30 -0.08
SINCE 7/1 2.2 3.0 -0.8
LIQUID 7/1 0.22
DAYS >= TRACE 13 3.5 9.5
DAYS >= 1.0 0 0.9 -0.9
GREATEST
SNOW DEPTH 1 11/17
11/16
24 HR TOTAL 1.0R 11/16 TO 11/17
STORM TOTAL MM
(MM/DD(HH)) MM
DEGREE_DAYS
HEATING TOTAL 770 742 28
SINCE 7/1 1249 1301 -52
COOLING TOTAL 0 0 0
SINCE 1/1 787 736 51
FREEZE DATES
RECORD
EARLIEST MM
LATEST MM
EARLIEST 11/02 MM
LATEST MM
.................................................
WIND (MPH)
AVERAGE WIND SPEED 8.6
HIGHEST WIND SPEED/DIRECTION 26/220 DATE 11/13
HIGHEST GUST SPEED/DIRECTION 33/350 DATE 11/15
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
NUMBER OF DAYS FAIR 3
NUMBER OF DAYS PC 8
NUMBER OF DAYS CLOUDY 19
AVERAGE RH (PERCENT) 70
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 1 MIXED PRECIP 0
HEAVY RAIN 1 RAIN 5
LIGHT RAIN 11 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 1 SNOW 4
LIGHT SNOW 12 SLEET 2
FOG 20 FOG W/VIS <= 1/4 MILE 3
HAZE 16
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$
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CLIMATOLOGICAL STATISTICS FOR THE NWS WHITE LAKE - NOVEMBER 2008
...TEMPERATURE DATA... ...PRECIPITATION DATA...
AVERAGE MAXIMUM.... 43.2 MONTHLY TOTAL .......... 2.57
AVERAGE MINIMUM.... 29.0 GREATEST IN 24HRS....... 0.72
MONTHLY AVERAGE.... 36.1 ON 14-15TH
2008 TOTAL..............37.89
...HEATING DEGREE DAYS... ...SNOWFALL DATA...
MONTHLY TOTAL......... 875 MONTHLY TOTAL............10.7
2008-09 SEASON TOTAL..1628 2008-09 SEASON TOTAL.....10.7
...COOLING DEGREE DAYS...
MONTHLY TOTAL.......... 0
2008 TOTAL.............411
==================================================================
CLIMATOLOGICAL SUMMARY FOR DETROIT - NOVEMBER 2008
...NOVEMBER OPENS WITH BEAUTIFUL INDIAN SUMMER WEATHER THE FIRST WEEK...
...SHARPLY COLDER WEATHER SECOND HALF ERASES INDIAN SUMMER WARMTH AND
HELPS BRINGS ABOVE NORMAL SNOW TO MUCH OF WEST/NORTHERN SUBURBS...
...MONTH LEAVES WITH A THANKSGIVING WEEKEND STORM...
NOVEMBER PRETTY MUCH LIVED UP TO ITS REPUTATION AS THE TRANSITORY MONTH
BETWEEN FALL AND WINTER AND HAD A LITTLE OF EVERYTHING...WARMTH...
COLD...RAIN...THUNDERSTORMS AND SNOW. THE ONLY THING THE MONTH WAS
LACKING WAS THE CLASSIC NOVEMBER GALE (THOUGH THERE WERE A FEW WINDY
DAYS).
THE MONTH OPENED WITH BEAUTIFUL INDIAN SUMMER WEATHER IN PROGRESS WITH
TEMPERATURES PEAKING INTO THE LOWER 70S BY THE 4TH AND 5TH. WHILE
NO RECORD HIGHS WERE SET...THE HIGHS OF 71 (4/5TH) WERE NOT TOO FAR
FROM THE RECORDS (75/74). A FAIRLY STRONG COLD FRONT PUSHED THROUGH
SOUTHEAST MICHIGAN ON THE 7TH AND TEMPERATURES FELL OFF TO MORE
SEASONABLE 40S AND THEN FELL BACK FURTHER INTO THE 30S ON THE 10-11TH.
A NICE TEMPERATURE REBOUND MID-MONTH BROUGHT 50S BACK INTO THE PICTURE.
HOWEVER..THIS TIME IT WAS SHORT-LIVED...AS A MUCH MORE NOTABLE (AND
CONSISTENT) SHIFT OF THE JET STREAM TO THE NORTHWEST FROM THE 16TH
ON...BROUGHT MUCH COLDER WEATHER WHICH PRETTY WELL DOMINATED THE REST
OF THE MONTH. EVERY DAY FROM THE 16TH ON...AVERAGED BELOW NORMAL EXCEPT
ONE (AND THAT ONE WAS JUST NORMAL). ESPECIALLY COLD WAS THE PERIOD FROM
THE 18TH TO 23RD...WHERE TEMPERATURES AVERAGED IN THE MID 20S TO NEAR
30...OR ABOUT 11 DEGREES BELOW NORMAL. THE COLDEST MORNING WAS ON THE
23RD WHERE READINGS FELL WELL DOWN IN THE TEENS WITH SEVERAL LOCATIONS
EVEN BOTTOMING OUT AT 10. DETROIT METRO AIRPORT DROPPED TO 15 THAT
MORNING BUT THE RECORD LOW FOR THE 23RD IS 8...OCCURRING DURING A
BRUTAL COLD SNAP (FOR NOVEMBER) IN 1880 (WHERE SEVERAL RECORD LOWS
STILL STAND...INCLUDING A ZERO). TEMPERATURES MODERATED SOMEWHAT BY
THANKSGIVING AND AFTER WHEN HIGHS ACTUALLY ROSE TO THE NORMAL LOWER
40S FOR AWHILE. ALL IN ALL...NOVEMBER AVERAGED /39.0/ OVER A DEGREE
AND A HALF /-1.7/ BELOW NORMAL AND THAT WAS ALMOST EXCLUSIVELY DUE
TO THE SECOND HALF.
PRECIPITATION FOR THE MONTH WAS FARLY ACTIVE STARTING WITH A WARM FRONT
THAT PUSHED THROUGH THE REGION ON THE 3RD...BRINGING RAIN AND SCATTERED
THUNDERSTORMS TO THE REGION. DETROIT METRO RECORDED A HALF INCH /.51"/
HOWEVER THE HEAVIEST RAIN SEEMED TO BE CONCENTRATED OVER EAST AND
NORTHEAST SECTIONS OF SOUTHEAST MICHIGAN. FOR INSTANCE... RICHMOND
RECORDED BY FAR HAD THE HIGHEST WITH 1.20" BY THE MORNING WHILE OTHER
TOTALS INCLUDED...0.63 AT GROSSE POINT...CAPAC 0.60" AND PONTIAC WITH
0.58". MORE SUBSTANTIAL RAINS FELL AGAIN MID-MONTH IN THE ADVENT OF THE
SWEEPS OF COLDER AIR. RAINFALL TOTALS FROM THE 12TH-15TH TOTALED WELL
OVER AN INCH /1.35"/ HERE AT THE NWS IN WHITE LAKE. IN ADDITION...
ANOTHER FORM OF PRECIPITATION STARTED TO MAKE MORE OF AN APPEARANCE
MID MONTH...SNOW.
AND SNOW IT DID BY MID-MONTH ON WITH FREQUENT SNOW EVENTS RIGHT INTO
THANKSGIVING WEEKEND (WHICH HELD THE BEST EVENT). THE FIRST REALLY
NOTABLE SNOW THAT MESSED UP THE ROADS FELL ON THE 16-17TH. THOUGH THERE
WERE JUST LIGHT ACCUMULATIONS (GENERALLY AN INCH OR TWO) IT FELL ON
WARM ROADS AND THEN FROZE ON UNTREATED SURFACES. A BETTER EVENT FOR
TOTALS CAME ON THE 24-25TH (JUST BEFORE THANKSGIVING) WITH GENERALLY
ONE TO FOUR INCHES ACROSS THE NORTHERN SUBURBS WITH MUCH LESS AROUND
DETROIT AND SOUTH. THEN FINALLY...OUR THANKSGIVING WEEKEND /SUN/ MAJOR
STORM THAT BROUGHT SEVERAL INCHES BUT AGAIN...THIS WAS MAINLY NORTHWEST
OF A LINE FROM THE PORT HURON AREA..ACROSS DETROIT`S IMMEDIATE
NORTHWEST SUBURBS TO THE ADRIAN AREA. SOUTHEAST OF THE LINE RAIN AND
RAIN MIXED WITH SNOW DOMINATED. HIGHEST AMOUNTS OCCURRED IN NORTHERN
OAKLAND COUNTY WHERE TOTALS FLIRTED WITH SIX INCHES /ORTONVILLE
REPORTED 6.3"/. NEEDLESS TO SAY ROAD CONDITIONS DETERIORATED RAPIDLY
THAT BUSY SUNDAY AFTERNOON DRIVE TIME AS THE SNOW MOVED IN.
SNOWFALLS FOR THE MONTH CAME IN JUST BELOW NORMAL AT DETROIT WITH 2.2"
OF THE NORMAL 2.7". AREAS NORTH AND WEST OF DETROIT SAW ABOVE NORMAL
TOTALS WITH MANY AREAS SEEING 4.0"-8.0" HERE AT THE NWS AT WHITE LAKE...
NOVEMBER`S SNOWFALL TOTALED A HEALTHY 10.7"...EASILY THE MOST SINCE THE
NWS HAS BEEN TAKING RECORDS /1995/. THE PREVIOUS HIGHEST NOVEMBER SNOW
AMOUNT INTERESTINGLY OCCURRED JUST LAST NOVEMBER /2007/ WITH 6.5".
THE COLDER THAN NORMAL ENDING /NOVEMBER/ TO THE FALL VERIFIED OUR FALL
OUTLOOK AND ANALOGUE AUTUMNS WHICH ADVERTISED WELL THE COLDER ENDING.
LOOK FOR A SHORT WRITE-UP ON THE FALL ALTOGETHER PLUS AN UPDATE TO
WINTER`S OPENING SOON.
DEEDLER
