018
CXUS53 KMQT 152249
CLMMQT
CLIMATE REPORT...PRELIMINARY
NATIONAL WEATHER SERVICE MARQUETTE MI
550 PM EST SUN NOV 15 2009
...............................
..THE MARQUETTE MI CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2009
CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1961 TO 2009
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
............................................................
TEMPERATURE (F)
RECORD
HIGH 87 10/02/1992
LOW 9 10/23/1969
HIGHEST 63 10/19 51 12 77 10/13
LOWEST 20 10/14 34 -14 21 10/22
AVG. MAXIMUM 45.1 52.0 -6.9 52.5
AVG. MINIMUM 33.0 34.4 -1.4 36.3
MEAN 39.0 43.2 -4.2 44.4
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 0 0.6 -0.6 0
DAYS MIN <= 32 15 15.0 0.0 11
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 7.59 1979
MINIMUM 0.94 1975
TOTALS 6.95 3.66 3.29 2.62
DAILY AVG. 0.22 0.12 0.10 0.08
DAYS >= .01 18 14.1 3.9 14
DAYS >= .10 10 8.2 1.8 8
DAYS >= .50 4 2.1 1.9 1
DAYS >= 1.00 4 0.8 3.2 0
GREATEST
24 HR. TOTAL 1.61 10/06 TO 10/07
SNOWFALL (INCHES)
RECORDS
TOTAL 18.6 1979
TOTALS 2.0 5.9 -3.9 2.2
SINCE 7/1 2.0 6.0 -4.0 2.2
SNOWDEPTH AVG. 0 0 0 0
DAYS >= 1.0 1 1.8 -0.8 1
GREATEST
SNOW DEPTH 1 10/13 2 10/28
24 HR TOTAL 1.5 10/12 TO 10/13
DEGREE_DAYS
HEATING TOTAL 798 671 127 631
SINCE 7/1 1289 1208 81 1032
COOLING TOTAL 0 0 0 0
SINCE 1/1 124 229 -105 152
.............................................................
WIND (MPH)
AVERAGE WIND SPEED MM
HIGHEST WIND SPEED/DIRECTION MM DATE MM
HIGHEST GUST SPEED/DIRECTION 40/270 DATE 10/31
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER MM
NUMBER OF DAYS FAIR MM
NUMBER OF DAYS PC MM
NUMBER OF DAYS CLOUDY MM
AVERAGE RH (PERCENT) MM
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 4
LIGHT RAIN 21 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 12 SLEET 2
FOG 5 FOG W/VIS <= 1/4 MILE 4
HAZE 0
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
..OCTOBER 2009 MONTHLY CLIMATE SUMMARY FOR UPPER MICHIGAN
(THIS DISCUSSION DOES NOT INCLUDE CHIPPEWA AND MACKINAC COUNTIES)
..VERY WET
..SECOND WETTEST OCTOBER AT THE MARQUETTE NWS
..THIRD WETTEST OCTOBER AT NEWBERRY AND MANISTIQUE
..THIRD WETTEST OCTOBER AT ONTONAGON
..FIFTH WETTEST OCTOBER AT IRONWOOD AND IRON MOUNTAIN
..SIXTH WETTEST OCTOBER AT HOUGHTON
..EIGHTH WETTEST OCTOBER AT MARQUETTE CITY
..VERY CHILLY
..COLDEST OCTOBER AT MUNISING
..SECOND COLDEST OCTOBER AT ONTONAGON
..THIRD COLDEST OCTOBER AT HOUGHTON
..FIFTH COLDEST OCTOBER AT IRON MOUNTAIN AND MARQUETTE NWS
..SIXTH COLDEST OCTOBER AT MANISTIQUE
..EIGHTH COLDEST OCTOBER AT IRONWOOD
..NINTH COLDEST OCTOBER AT NEWBERRY
OCTOBER CLIMATE STATISTICS FOR THE MARQUETTE NWS IN NEGAUNEE TOWNSHIP
NORMAL DEPARTURE
AVERAGE TEMPERATURE 39.0 43.2 MINUS 4.2
AVERAGE HIGH TEMPERATURE 45.1 52.0 MINUS 6.9
AVERAGE LOW TEMPERATURE 33.0 34.4 MINUS 1.4
HEATING DEGREE DAYS 798 671 PLUS 127
COOLING DEGREE DAYS 0 0 0
TOTAL PRECIPITATION 6.95 3.66 PLUS 3.29
TOTAL SNOWFALL 2.0 5.9 MINUS 3.9
HIGHEST TEMPERATURE: 63 ON 10/19
LOWEST TEMPERATURE: 20 ON 10/14
GREATEST CALENDAR DAY PRECIPITATION: 1.50 ON 10/6
GREATEST 24 HOUR PRECIPITATION: 1.61 ON 10/6-10/7
GREATEST CALENDAR DAY SNOWFALL: 1.0 ON 10/13
GREATEST 24 HOUR SNOWFALL: 1.5 ON 10/12-10/13
PEAK WIND SPEED: 40 MPH FROM THE WEST ON 10/31
DAILY RECORD LOW MINIMUM TEMPERATURE ON 10/1...26 (OLD RECORD
30...1966/2003
DAILY RECORD PRECIPITATION ON 10/6...1.50 (1.11...1995)
DAILY RECORD LOW MINIMUM TEMPERATURE ON 10/14...20 (21...2002)
DAILY RECORD LOW MAXIMUM TEMPERATURE TIED ON 10/15...37 (37...1991)
DAILY RECORD PRECIPITATION ON 10/21...1.22 (0.88...1972)
SIXTH LOWEST OCTOBER MEAN TEMPERATURE...39.0 (RECORD 37.9...2002)
SECOND HIGHEST OCTOBER PRECIPITATION...6.95 (RECORD 7.59...1979)
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GREAT LAKES WATER LEVELS (FEET/METERS ABOVE MEAN SEA LEVEL)
LAKE SUPERIOR LAKE MICHIGAN-HURON
10/01/09 DAILY MEAN 601.7/183.41 578.4/176.31
10/31/09 DAILY MEAN 601.6/183.37 578.5/176.32
AVG SEP 2009 DAILY MEAN 601.8/183.42 578.6/176.37
AVG OCT 2008 DAILY MEAN 601.4/183.32 577.7/176.10
LONG TERM OCT DAILY MEAN 602.1/183.52 578.9/176.45
MAXIMUM OCT DAILY MEAN 603.4/183.91 582.3/177.50
(1985) (1986)
MINIMUM OCT DAILY MEAN 600.7/183.10 576.4/175.70
(1925) (1964)
OBTAIN GREAT LAKES WATER LEVEL DATA AS REPORTED BY THE U.S. ARMY
CORPS OF ENGINEERS AT
HTTP://WWW.LRE.USACE.ARMY.MIL/GREATLAKES/HH/GREATLAKESWATERLEVELS/
CURRENTCONDITIONS/GREATLAKESWATERLEVELS (ALL LOWER CASE).
--------------------------------------------------------------------
OCTOBER CLIMATE HIGHLIGHTS
HIGHEST REPORTED TEMPERATURE...69 AT LA BRANCHE IN MENOMINEE COUNTY
AND RANDVILLE IN DICKINSON COUNTY ON
10/19
LOWEST REPORTED TEMPERATURE...13 NEAR NEWBERRY ON 10/14
HIGHEST AVERAGE TEMPERATURE...43.7 DEGREES AT MARQUETTE CITY
LOWEST AVERAGE TEMPERATURE...37.5 DEGREES AT STAMBAUGH IN IRON COUNTY
HIGHEST MONTHLY PRECIPITATION...6.95 INCHES AT NEGAUNEE IN MARQUETTE
COUNTY
LOWEST MONTHLY PRECIPITATION...3.91 INCHES AT MOHAWK IN KEWEENAW COUNTY
HIGHEST MONTHLY SNOWFALL...13.5 INCHES AT ATLANTIC MINE IN HOUGHTON
COUNTY
A DEEP UPPER TROUGH THAT DEVELOPED IN LATE SEPTEMBER OVER THE GREAT
LAKES PERSISTED UNTIL THE LAST WEEK OF OCTOBER AND RESULTED IN A
VERY CHILLY...WET MONTH ACROSS ALL OF UPPER MICHIGAN. SINCE AN UPPER
RIDGE DOMINATED ALL BUT THE LAST COUPLE OF DAYS IN SEPTEMBER...THE
CONTRAST BETWEEN OCTOBER AND SEPTEMBER WEATHER WAS QUITE STARK.
WHILE SEPTEMBER WAS A TOP TEN WARMEST AND DRIEST NINTH MONTH AT MANY
LOCATIONS UNDER THAT RIDGE...OCTOBER 2009 ENDED UP IN THE LIST OF
TOP TEN COLDEST AND WETTEST. IN FACT...THE MEAN MONTHLY TEMPERATURE
WAS ABOUT 20 DEGREES LOWER IN OCTOBER THAN IN SEPTEMBER...RUNNING 3
TO 5 DEGREES BELOW NORMAL FOR THE TENTH MONTH AFTER SEPTEMBER
FINISHED UP 4 TO 6 DEGREES WARMER THAN AVERAGE. LIKEWISE...WHILE
SEPTEMBER RAINFALL WAS 35 TO 65 PERCENT OF NORMAL AT MOST LOCATIONS
AND AS LITTLE AS 15 PERCENT OF AVERAGE AT NEWBERRY...OCTOBER
PRECIPITATION IN THE 4 TO 7 INCH RANGE RAN 140 TO 190 PERCENT OF THE
30-YEAR MEAN. THIS HEAVY PRECIPITATION EASED LONG-TERM DROUGHT THAT
HAS PERSISTED OVER MAINLY THE WEST HALF OF UPPER MICHIGAN SINCE THE
SUMMER OF 2008.
ALTHOUGH MOST OCTOBERS FEATURE A PERIOD OF INDIAN SUMMER WEATHER
WITH A STRETCH OF SUNSHINE AND 70-DEGREE TEMPERATURES...THAT WAS NOT
THE CASE IN OCTOBER 2009. AT THE MARQUETTE NWS...THERE WERE ONLY
THREE DAYS FROM 10/1 THROUGH 10/25 WHEN THE MEAN TEMPERATURE WAS
ABOVE THE DAILY AVERAGE. AND ON ONLY ONE DAY...10/19...DID THE
THERMOMETER AVERAGE AT LEAST 10 DEGREES ABOVE THE MEAN WITH READINGS
PEAKING IN THE 60S. THE WEEK BETWEEN 10/10 AND 10/17 WAS THE COLDEST
PERIOD. DAILY TEMPERATURES AVERAGED 10 TO 15 DEGREES BELOW
NORMAL...AND A NUMBER OF NEW DAILY RECORD LOW MAXIMUMS AND MINIMUMS
WERE ESTABLISHED DURING THIS INTERVAL WHEN THE UPPER TROUGH WAS
DEEPEST. AT LEAST ONE LOCATION ACROSS THE U.P. REPORTED A MORNING
LOW IN THE TEENS ON 10/1...10/12...10/14...10/15...10/16...10/17...
AND 10/18. THE MERCURY ROSE NO HIGHER THAN THE 30S AT AT LEAST ONE
LOCATION EVERY DAY FROM 10/10 THROUGH 10/17 AND THEN AGAIN ON 10/21
THROUGH 10/25. THE TROUGH BEGAN TO WEAKEN THE LAST WEEK OF
OCTOBER...ALLOWING MILDER AIR TO RETURN AFTER 10/25. THE DAY ON
10/30 WAS THE WARMEST WITH DAILY TEMPERATURES RUNNING 10 TO 15
DEGREES ABOVE AVERAGE AND HIGH TEMPERATURES EXCEEDING THE 60-DEGREE
MARK AT SOME LOCATIONS.
WITH THE TROUGH DOMINATING...THERE WAS A PARADE OF MOISTURE-LADEN
LOW PRESSURE SYSTEMS THAT IMPACTED UPPER MICHIGAN IN OCTOBER. THE
MOST NOTABLE OF THESE BROUGHT HEAVY PRECIPITATION ON 10/2 INTO
10/3...10/6 INTO 10/7...10/21 INTO 10/22...10/23 INTO 10/24...AND
THEN AGAIN ON 10/29 INTO 10/30. AN INCH OR MORE OF RAIN OR WATER
EQUIVALENT PRECIPITATION FELL AT AT LEAST ONE PLACE DURING THESE
EVENTS...IN SOME CASES SETTING NEW DAILY PRECIPITATION RECORDS. MOST
PLACES PICKED UP 0.50 TO 1.00 INCH OF RAIN DURING THE 10/2 INTO 10/3
EVENT...BUT AS MUCH AS 1.80 INCHES FELL AT DAGGETT IN MENOMINEE
COUNTY. ON 10/6 INTO 10/7...0.75 INCH TO 1.75 INCHES OF RAIN WAS
COMMON. MUNISING AND GARDEN CORNERS IN DELTA COUNTY LED REPORTING
STATIONS WITH 1.82 AND 1.81 INCHES RESPECTIVELY. WATER EQUIVALENT
PRECIPITATION DURING THE 10/21 TO 10/22 EPISODE WAS 0.50 INCH TO
1.50 INCHES. THE NATIONAL WEATHER SERVICE OFFICE AT NEGAUNEE IN
MARQUETTE COUNTY SAW THE MOST WITH 1.56 INCHES. ANOTHER 0.75 INCH TO
1.50 INCHES FELL ON 10/23 INTO 10/24. THIS TIME THE CITY OF
MARQUETTE REPORTED THE HIGHEST AMOUNT WITH 1.64 INCHES. WHILE MOST
LOCATIONS MEASURED LESS THAN AN INCH OF RAIN ON 10/29 INTO
10/30...AN INCH OR MORE FELL OVER SOUTHEAST UPPER MICHIGAN NEAR LAKE
MICHIGAN AND THE BAY OF GREEN BAY. MENOMINEE LOGGED 1.67
INCHES...THE MOST REPORTED.
WITH THE OVERALL CHILL AND HEAVY PRECIPITATION...AS MUCH AS 6 TO 12
INCHES OF SNOW FELL OVER MAINLY THE HIGHER TERRAIN OF THE WEST AND
NORTH CENTRAL IN OCTOBER 2009. ATLANTIC MINE IN HOUGHTON COUNTY SAW
THE MOST WITH A MONTHLY TOTAL OF 13.5 INCHES. THERE WERE A FEW
SNOWFALLS OF NOTE DURING OCTOBER. SOME HIGHER TERRAIN LOCATIONS
OVER THE WEST HALF OF UPPER MICHIGAN REPORTED 3 TO 7 INCHES OF THE
WHITE STUFF ON 10/23 INTO 10/24 AS COLDER AIR REMAINED IN PLACE ON
THE NORTHWEST FLANK OF LOW PRESSURE MOVING FROM NEAR MILWAUKEE TO
NORTHERN LOWER MICHIGAN. MAINLY RAIN FELL OVER LOWER TERRAIN NEAR
LAKE SUPERIOR AND OVER ALL THE EAST HALF. ON 10/12...A DISTURBANCE
TRACKING NORTHEAST FROM THE PLAINS BROUGHT A MIX OF RAIN AND SNOW
THAT CHANGED MAINLY TO SNOW LATE IN THE DAY. AS MUCH AS 4 INCHES OF
WET SNOW ACCUMULATED ON GRASSY SURFACES EVEN OVER THE SOUTH CENTRAL.
SNOW ALSO MIXED WITH THE RAIN DURING THE 10/21 INTO 10/22
PRECIPITATION EPISODE OVER THE HIGHER TERRAIN OF THE WEST...WHERE
1 TO 3 INCHES FELL AT A FEW PLACES. OTHERWISE...LAKE EFFECT RAIN AND
SNOW SHOWERS FELL AT TIMES DURING THE COLD WEEK FROM 10/10 TO 10/17.
SEVERAL LOCATIONS OVER MAINLY THE HIGHER TERRAIN OF THE WEST AND
NORTH CENTRAL LOGGED AS MUCH AS 2 TO 4 INCHES OF WET SNOW ON SOME OF
THESE DAYS.
THE FOLLOWING TABLES SUMMARIZE THE ANOMALOUS OCTOBER 2009 CHILL AND
HEAVY PRECIPITATION AND COMPARE THIS PAST OCTOBER WITH THE COLDEST
AND WETTEST ON RECORD.
OCT 2009 OCT NORMAL OCT RECORD 2009 RANK
LOCATION TEMPERATURE TEMPERATURE DEPARTURE COLDEST (YEAR) COLDEST
ONTONAGON 42.4 46.4 -4.0 41.4 (2002) 2ND
HOUGHTON 39.7 44.3 -4.6 39.0 (1952) 3RD
MUNISING 40.9 45.7 -4.8 36.9 (1925) 3RD
MARQUETTE NWS 39.0 43.2 -4.2 37.9 (2002) 5TH
IRON MOUNTAIN 41.2 45.3 -4.1 39.8 (1988) 5TH
MANISTIQUE 42.8 45.4 -2.6 40.8 (1988) 6TH
IRONWOOD 39.0 43.6 -4.6 33.8 (1917) 8TH
NEWBERRY 41.2 44.8 -3.6 36.9 (1925) 9TH
MARQUETTE CITY 43.7 47.1 -3.4 38.0 (1925) 24TH
OCT 2009 OCT NORMAL OCT RECORD 2009 RANK
LOCATION PRECIPITATION PRECIP DEPARTURE WETTEST (YEAR) WETTEST
MARQUETTE NWS 6.95 3.66 +3.29 7.59 (1979) 2ND
NEWBERRY 6.24 3.03 +3.21 7.26 (2004) 3RD
MANISTIQUE 5.95 3.55 +2.40 6.13 (1967) 3RD
ONTONAGON 5.55 3.38 +2.17 6.59 (1995) 3RD
IRONWOOD 6.04 3.39 +2.65 7.50 (2007) 5TH
IRON MOUNTAIN 4.72 2.65 +2.07 6.43 (2007) 5TH
HOUGHTON 4.57 2.59 +1.98 6.83 (2007) 6TH
MARQUETTE CITY 5.19 3.03 +2.16 7.13 (1959) 8TH
MUNISING 5.62 3.99 +1.63 9.23 (1968) 16TH
ABUNDANT OCTOBER PRECIPITATION GREATLY EASED LONG TERM DROUGHT
CONDITIONS...WHICH HAD FLARED AFTER SEPTEMBER DRYNESS. BY THE END OF
OCTOBER...THE U.S. DROUGHT MONITOR INDICATED THE SEVERE DROUGHT
INDICATED ON 9/29 WITHIN 50 MILES OF THE WISCONSIN BORDER HAD
IMPROVED TO MODERATE DROUGHT. THIS AREA OF MODERATE DROUGHT ON 10/27
WAS ANALYZED WITHIN 25 MILES OF THE BORDER WEST OF IRON MOUNTAIN. A
THIN RIBBON OF ABNORMALLY DRY CONDITIONS STRETCHING FROM MENOMINEE
AND ESCANABA TO ONTONAGON BORDERED THIS AREA OF MODERATE DROUGHT.
SEE WWW.DROUGHT.UNL.EDU/DM/MONITOR.HTML (ALL LOWER CASE) FOR MORE
DETAILS.
16-MONTH
JUL 08 THRU OCT 09 JUL THRU OCT OBS-NORMAL
PRECIPITATION NORMAL PRECIPITATION
(INCHES) (INCHES) (INCHES)
IRON MOUNTAIN 32.66 43.83 -11.17
HOUGHTON 39.33 45.83 -6.50
IRONWOOD 43.00 49.43 -6.43
MARQUETTE CITY 36.01 42.24 -6.23
MARQUETTE NWS 45.27 50.28 -5.01
ONTONAGON 45.37 47.00 -1.63
SOME OTHER TEMPERATURE AND PRECIPITATION OBSERVATIONS ACROSS UPPER
MICHIGAN IN OCTOBER 2009 INCLUDE:
IRONWOOD...AVERAGE TEMPERATURE 39.0 (4.6 DEGREES BELOW NORMAL)
PRECIPITATION 6.04 INCHES (2.65 INCHES ABOVE NORMAL)
SNOWFALL 5.6 INCHES (0.2 INCH ABOVE NORMAL)
WATERSMEET (GOGEBIC COUNTY)...PRECIPITATION 5.69 INCHES
SNOWFALL 2.4 INCHES
ONTONAGON...AVERAGE TEMPERATURE 42.4 (4.0 DEGREES BELOW NORMAL)
(6 MILES PRECIPITATION 5.55 INCHES (2.17 INCHES ABOVE NORMAL)
INLAND) SNOWFALL 4.5 INCHES (2.2 INCHES ABOVE NORMAL)
ROCKLAND (ONTONAGON COUNTY)...PRECIPITATION 6.58 INCHES
SNOWFALL 7.5 INCHES
BERGLAND DAM (ONTONAGON COUNTY)...AVERAGE TEMPERATURE 39.4 DEGREES
PRECIPITATION 5.70 INCHES
SNOWFALL 7.3 INCHES
TWIN LAKES (HOUGHTON COUNTY)...AVERAGE TEMPERATURE 38.7 DEGREES
PRECIPITATION 5.98 INCHES
SNOWFALL 8.3 INCHES
PAINESDALE (HOUGHTON COUNTY)...PRECIPITATION 4.44 INCHES
SNOWFALL 9.0 INCHES
HOUGHTON COUNTY...AVERAGE TEMPERATURE 39.7 (4.6 DEGREES BELOW NORMAL)
AIRPORT PRECIPITATION 4.57 INCHES (1.98 INCHES ABOVE NORMAL)
SNOWFALL 2.9 INCHES (0.9 INCH BELOW NORMAL)
ATLANTIC MINE (HOUGHTON COUNTY)...PRECIPITATION 5.13 INCHES
SNOWFALL 13.5 INCHES
MOHAWK (KEWEENAW COUNTY)...PRECIPITATION 3.91 INCHES
SNOWFALL 5.1 INCHES
COPPER HARBOR...AVERAGE TEMPERATURE 41.9 DEGREES
PRECIPITATION 4.27 INCHES
SNOWFALL 0.0 INCH
JACOBSVILLE (HOUGHTON COUNTY)...AVERAGE TEMPERATURE 39.5 DEGREES
PRECIPITATION 4.56 INCHES
SNOWFALL 1.9 INCHES
BARAGA...AVERAGE TEMPERATURE 40.5 DEGREES
PRECIPITATION 4.29 INCHES
SNOWFALL 2.5 INCHES
WATTON (BARAGA COUNTY)...AVERAGE TEMPERATURE 37.9 DEGREES
PRECIPITATION 5.20 INCHES
SNOWFALL 6.8 INCHES
HERMAN (BARAGA COUNTY)...AVERAGE TEMPERATURE 37.9 DEGREES
PRECIPITATION 6.11 INCHES
SNOWFALL 9.6 INCHES
CLARKSBURG (MARQUETTE COUNTY)...AVERAGE TEMPERATURE 37.8 DEGREES
PRECIPITATION 4.69 INCHES
SNOWFALL 2.1 INCHES
WITCH LAKE (MARQUETTE COUNTY)...PRECIPITATION 5.25 INCHES
SNOWFALL 2.0 INCHES
BIG BAY (MARQUETTE COUNTY)...AVERAGE TEMPERATURE 41.2 DEGREES
PRECIPITATION 5.78 INCHES
SNOWFALL 0.5 INCH
MARQUETTE CITY...AVERAGE TEMPERATURE 43.7 (3.4 DEGREES BELOW NORMAL)
PRECIPITATION 5.19 INCHES (2.16 INCHES ABOVE NORMAL)
SNOWFALL 0.0 INCH (1.8 INCHES BELOW NORMAL)
GWINN (MARQUETTE COUNTY)...PRECIPITATION 4.67 INCHES
SNOWFALL TRACE
CHATHAM (ALGER COUNTY)...AVERAGE TEMPERATURE 39.9 DEGREES
PRECIPITATION 6.50 INCHES
SNOWFALL 0.5 INCH
MUNISING...AVERAGE TEMPERATURE 40.9 (4.8 DEGREES BELOW NORMAL)
PRECIPITATION 5.62 INCHES (1.63 INCHES ABOVE NORMAL)
SNOWFALL TRACE (2.9 INCHES BELOW NORMAL)
WETMORE (ALGER COUNTY)...PRECIPITATION 5.08 INCHES
SNOWFALL 0.7 INCH
MCMILLAN (LUCE COUNTY)...PRECIPITATION 6.14 INCHES
SNOWFALL 1.7 INCHES
NEWBERRY...AVERAGE TEMPERATURE 41.2 (3.6 DEGREES BELOW NORMAL)
PRECIPITATION 6.24 INCHES (3.21 INCHES ABOVE NORMAL)
SNOWFALL 1.1 INCHES (0.2 INCH ABOVE NORMAL)
TWO HEART (LUCE COUNTY)...SNOWFALL 1.8 INCHES
STAMBAUGH (IRON COUNTY)...AVERAGE TEMPERATURE 37.5 DEGREES
PRECIPITATION 5.01 INCHES
SNOWFALL 3.5 INCHES
AMASA (IRON COUNTY)...PRECIPITATION 4.94 INCHES
SNOWFALL 2.8 INCHES
IRON MOUNTAIN...AVERAGE TEMPERATURE 41.2 (4.1 DEGREES BELOW NORMAL)
PRECIPITATION 4.72 INCHES (2.07 INCHES ABOVE NORMAL)
SNOWFALL 1.5 INCHES (1.2 INCHES ABOVE NORMAL)
DAGGETT (MENOMINEE COUNTY)...PRECIPITATION 5.65 INCHES
SNOWFALL 0.5 INCH
MENOMINEE...PRECIPITATION 6.40 INCHES
SNOWFALL TRACE
CORNELL (DELTA COUNTY)...PRECIPITATION 5.01 INCHES
SNOWFALL 0.3 INCH
GLADSTONE (DELTA COUNTY)...PRECIPITATION 4.99 INCHES
SNOWFALL 0.5 INCH
RAPID RIVER (DELTA COUNTY)...PRECIPITATION 5.02 INCHES
SNOWFALL TRACE
GARDEN CORNERS (DELTA COUNTY)...AVERAGE TEMPERATURE 42.0 DEGREES
PRECIPITATION 6.29 INCHES
SNOWFALL 1.0 INCH
MANISTIQUE...AVERAGE TEMPERATURE 42.8 (2.6 DEGREES BELOW NORMAL)
PRECIPITATION 5.95 INCHES (2.40 INCHES ABOVE NORMAL)
SNOWFALL TRACE
OCTOBER WEATHER SUMMARY
MORE TO COME LATER.
NOVEMBER CLIMATOLOGY
RESIDENTS OF UPPER MICHIGAN FEEL WINTER'S TIGHTENING GRIP MORE AND
MORE OFTEN DURING NOVEMBER AS THE SUN'S WARMING RAYS BECOME
INCREASINGLY FEEBLE. POSSIBLE SUNSHINE DECLINES FROM 605 MINUTES ON
11/1 TO 533 MINUTES ON 11/30. AS A RESULT...THE AVERAGE TEMPERATURE
DURING NOVEMBER IS AS MUCH AS 15 DEGREES LOWER THAN IN OCTOBER.
DESPITE THE INEVITABLE DECLINE TOWARD WINTER...PLEASANTLY MILD
WEATHER OFTEN MAKES AN APPEARANCE DURING THE ELEVENTH MONTH. MANY
RECENT NOVEMBERS HAVE BEEN QUITE MILD. IN FACT...NOVEMBER 2001 GOES
DOWN IN THE RECORD BOOKS AS THE WARMEST EVER AT ALL REPORTING
STATIONS WITH A MEAN TEMPERATURE 10 OR MORE DEGREES ABOVE NORMAL.
MANY STATIONS REPORTED MORE DAYS WITH A HIGH TEMPERATURE OVER 50
THAN IN ANY OTHER ELEVENTH MONTH...18 DAYS AT IRONWOOD AND IRON
MOUNTAIN AND 13 DAYS AT THE MARQUETTE NWS. AT THE MARQUETTE NWS...13
DAILY RECORD HIGH MAXIMUM OR MINIMUM TEMPERATURE RECORDS WERE EITHER
BROKEN OR TIED. NOVEMBER 1999 IS THE SECOND WARMEST ON RECORD AT
MOST PLACES. BETWEEN 11/8/99 AND 11/10/99...HIGH TEMPERATURES OVER
MUCH OF UPPER MICHIGAN REACHED NEAR OR ABOVE 70. RESIDENTS OF IRON
MOUNTAIN ENJOYED A MONTHLY- RECORD-TYING 75-DEGREE AFTERNOON ON
11/9/99. THE 73-DEGREE READING AT THE MARQUETTE NWS ON 11/9/99 WAS
THE HIGHEST NOVEMBER TEMPERATURE EVER RECORDED AT THAT STATION.
IRONWOOD REACHED 72 ON THAT DAY... ONLY TWO DEGREES SHY OF THE
MONTHLY RECORD 74. OTHER WARM SPELLS OCCURRED IN EARLY NOVEMBER
1990...1978 AND 1975. THE RECORD WARMTH THAT ENVELOPED UPPER
MICHIGAN DURING THE FIRST WEEK OF NOVEMBER 1975 AND SPREAD TO THE
EAST COAST DURING THE SECOND WEEK CONTRIBUTED TO THE INTENSITY OF
THE STORM THAT ROARED OVER LAKE SUPERIOR ON 11/10/75 AND SANK THE
EDMUND FITZGERALD.
BUT NOVEMBER CAN ALSO FEATURE ALMOST MID WINTER CHILL. NOVEMBER
1995...1976...AND 1959 ARE AMONG THE TOP THREE COLDEST NOVEMBERS AT
MOST LOCATIONS. TEMPERATURES AVERAGED AS MUCH AS 5 TO 8 DEGREES
BELOW NORMAL DURING THESE MONTHS...WITH READINGS MORE TYPICAL OF
DECEMBER. ONE OF THE COLDEST AIRMASSES EVER TO INVADE UPPER MICHIGAN
DURING NOVEMBER IMPACTED THE WESTERN GREAT LAKES BETWEEN 11/28/76
AND 11/30/76. THE LOWEST NOVEMBER TEMPERATURE EVER OBSERVED AT
IRONWOOD (-18)...THE MARQUETTE NWS (-13)...IRON MOUNTAIN (-10)...
NEWBERRY (-10) AND MANISTIQUE (-6) OCCURRED ON ONE OF THOSE THREE
DAYS.
SIGNIFICANT SNOW...ESPECIALLY LAKE EFFECT SNOW...BECOMES A GREATER
THREAT DURING NOVEMBER. AS MORE FREQUENT COLD AIR INVASIONS PASS
OVER THE RELATIVELY WARM WATERS OF LAKE SUPERIOR...THE AIRMASS
BECOMES INCREASINGLY UNSTABLE. THE RESULT IS A GREATER FREQUENCY OF
SNOW SHOWERS...WHICH ARE TYPICALLY HEAVIER AND MORE WIDESPREAD OVER
HIGHER TERRAIN JUST DOWNWIND OF LAKE SUPERIOR. THE AGGREGATE WARMTH
OF ALL THE GREAT LAKES ALSO INFLUENCES THE INTENSITY AND PATH OF
LARGE LOW PRESSURE SYSTEMS APPROACHING THE AREA. IN MOST CASES...
SURFACE LOWS INTENSIFY MORE QUICKLY AND TAKE A PATH FARTHER WEST
THAN THEY WOULD IF THE LAKES WERE ABSENT. THIS DEVIATION IN STORM
PATH IN GENERAL FAVORS HEAVIER SNOW ACROSS WESTERN UPPER MICHIGAN
THAN IN THE EAST. HIGHER TERRAIN AREAS ACROSS THE WEST THAT ALSO ARE
FAVORED FOR LAKE EFFECT SNOW THUS HAVE THE HIGHEST NORMAL NOVEMBER
SNOWFALL (AND LIQUID EQUIVALENT PRECIPITATION). IRONWOOD WAS
SMOTHERED UNDER 78 INCHES OF THE WHITE STUFF IN NOVEMBER 1989.
AVERAGE SNOW RANGES FROM NEARLY 24 INCHES AT HOUGHTON AND IRONWOOD
TO AROUND 6 INCHES OR LESS FROM IRON MOUNTAIN TO MANISTIQUE.
DESTABILIZATION OF COLD AIR MASSES OVER LAKE SUPERIOR AND RAPIDLY
INTENSIFYING SURFACE LOWS HELP MAKE NOVEMBER ONE OF THE WINDIEST
MONTHS OF THE YEAR...ESPECIALLY NEAR LAKE SUPERIOR. THERE IS TRUTH
IN THE PHRASE...GALES OF NOVEMBER.
NOVEMBER FORECAST
THE CLIMATE PREDICTION CENTER (CPC) IS FORECASTING A BETTER THAN
CLIMATOLOGICAL CHANCE OF AN ABOVE NORMAL MONTHLY AVERAGE TEMPERATURE
BUT EQUAL CHANCES OF ABOVE AND BELOW NORMAL PRECIPITATION OVER ALL
OF UPPER MICHIGAN IN NOVEMBER 2009.
OUTLOOK FOR WINTER
THE CLIMATE PREDICTION CENTER (CPC) IS FORECASTING A BETTER THAN
CLIMATOLOGICAL CHANCE OF AN ABOVE NORMAL 3-MONTH AVERAGE
TEMPERATURE BUT EQUAL CHANCES OF ABOVE AND BELOW NORMAL
PRECIPITATION OVER ALL OF UPPER MICHIGAN IN DECEMBER 2009 THROUGH
FEBRUARY 2010. WATER TEMPERATURES IN THE TROPICAL EASTERN PACIFIC
OCEAN ARE FORECAST TO REMAIN ABOVE NORMAL INTO THIS COMING WINTER.
THIS SO CALLED EL NINO PHENOMENON OFTEN CAUSES TEMPERATURES ACROSS
THE NORTH CENTRAL UNITED STATES TO AVERAGE ABOVE NORMAL...ESPECIALLY
DURING THE COLD SEASON. CPC INDICATES THERE IS AN EQUAL CHANCE OF
ABOVE AND BELOW NORMAL 3-MONTH PRECIPITATION OVER ALL OF UPPER
MICHIGAN IN NOVEMBER THROUGH JANUARY.
GO TO HTTP://WWW.WEATHER.GOV/CLIMATE/L3MTO.PHP TO ACCESS DETAILED
LOCAL THREE-MONTH AVERAGE TEMPERATURE OUTLOOKS FOR A NUMBER OF SITES
IN UPPER MICHIGAN.
CHECK OUT HTTP://WWW.CPC.NCEP.NOAA.GOV FOR MORE INFORMATION ABOUT
THE CLIMATE PREDICTION CENTER AND MORE LONG RANGE PREDICTIONS.
NOTE THAT STATISTICS FOR THE NATIONAL WEATHER SERVICE OFFICE IN
NEGAUNEE TOWNSHIP ARE BASED ON RECORDS WHICH BEGAN IN OCTOBER 1961.
THIRTY YEAR NORMALS USED ARE FOR THE PERIOD OF 1971 THROUGH 2000.
NOTE ALL TEMPERATURES ARE IN FAHRENHEIT AND PRECIPITATION IS IN
INCHES. ALL CLIMATE DATA LISTED IN THIS PRODUCT ARE UNOFFICIAL. FOR
OFFICIAL DATA...PLEASE REFER TO THE NATIONAL CLIMATIC DATA CENTER.
ALSO NOTE THIS DISCUSSION DOES NOT INCLUDE DATA FROM CHIPPEWA AND
MACKINAC COUNTIES.
NWS MARQUETTE WEB PAGE IS AT HTTP://WWW.WEATHER.GOV/MQT (ALL LOWER
CASE). CONTACT THE NATIONAL CLIMATIC DATA CENTER AT (828) 271-4800
OR WWW.NCDC.NOAA.GOV.
KC
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