Climatological Report (Monthly)
Issued by NWS Marquette, MI

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
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 202209 CCA
CLMMQT

CLIMATE REPORT...PRELIMINARY
NATIONAL WEATHER SERVICE MARQUETTE MI
510 PM EST FRI JAN 20 2017

...................................

...THE MARQUETTE MI CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1961 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              59   12/03/1998
                        12/03/1982
 LOW              -28   12/20/1983
HIGHEST            40   12/26        24      16       50  12/04
LOWEST            -12   12/18        10     -22        7  12/19
AVG. MAXIMUM     24.7              25.9    -1.2     33.6
AVG. MINIMUM     12.3              11.2     1.1     24.1
MEAN             18.5              18.5     0.0     28.9
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32     22              22.7    -0.7       13
DAYS MIN <= 32     31              30.5     0.5       27
DAYS MIN <= 0       8               6.2     1.8        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         6.91   1968
 MINIMUM         0.37   1994
TOTALS           2.19              2.57   -0.38     4.87
DAILY AVG.       0.07              0.08   -0.01     0.16
DAYS >= .01        17              17.1    -0.1       20
DAYS >= .10         7               7.1    -0.1       10
DAYS >= .50         1               1.1    -0.1        1
DAYS >= 1.00        0               0.2    -0.2        1
GREATEST
 24 HR. TOTAL    0.63   12/16 TO 12/17

SNOWFALL (INCHES)
RECORDS
 TOTAL           89.5   2000
TOTALS           42.0              42.8    -0.8     18.9
SINCE 7/1        56.2              73.3   -17.1     26.8
SNOWDEPTH AVG.      6                11      -5        3
DAYS >= 1.0         8              10.0    -2.0        7
GREATEST
 SNOW DEPTH        12   12/22                          6  12/30
 24 HR TOTAL     14.0   12/16 TO 12/17

DEGREE_DAYS
HEATING TOTAL    1433              1440      -7     1110
 SINCE 7/1       3058              3642    -584     2942
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        246               242       4      250
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              MM
HIGHEST WIND SPEED/DIRECTION    MM        DATE   MM
HIGHEST GUST SPEED/DIRECTION    44/270    DATE  12/26

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                       0
LIGHT RAIN                3     FREEZING RAIN              1
LT FREEZING RAIN          3     HAIL                       0
HEAVY SNOW                0     SNOW                       3
LIGHT SNOW               25     SLEET                      2
FOG                       2     FOG W/VIS <= 1/4 MILE      0
HAZE                      0

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

&&

...DECEMBER 2016 MONTHLY CLIMATE SUMMARY FOR UPPER MICHIGAN...
/THIS DISCUSSION DOES NOT INCLUDE CHIPPEWA AND MACKINAC COUNTIES/

...MONTHLY AVERAGE TEMPERATURE NOT FAR FROM NORMAL...

...GENERALLY ABOVE NORMAL PRECIPITATION AND SNOWFALL ESPECIALLY
IN THE NORTHWEST WIND LAKE EFFECT SNOW BELTS...

DECEMBER CLIMATE STATISTICS FOR THE MARQUETTE NWS IN NEGAUNEE
TOWNSHIP

                                    NORMAL   DEPARTURE
AVERAGE TEMPERATURE         18.5     18.5             0
AVERAGE HIGH TEMPERATURE    24.7     25.9  MINUS    1.2
AVERAGE LOW TEMPERATURE     12.3     11.2   PLUS    1.1
HEATING DEGREE DAYS         1433     1440  MINUS      7
COOLING DEGREE DAYS            0        0             0
TOTAL PRECIPITATION         2.19     2.57  MINUS   0.38
TOTAL SNOWFALL              42.0     42.8  MINUS    0.8

HIGHEST TEMPERATURE:                    40 ON 12/26
LOWEST TEMPERATURE:                    -12 ON 12/18
GREATEST CALENDAR DAY PRECIPITATION:  0.59 ON 12/17
GREATEST 24 HOUR PRECIPITATION:       0.63 ON 12/16-12/17
GREATEST CALENDAR DAY SNOWFALL:       13.7 ON 12/17
GREATEST 24 HOUR SNOWFALL:            14.0 ON 12/16-12/17
GREATEST SNOW DEPTH:                    12 ON 12/22
PEAK WIND SPEED:      44 MPH FROM THE WEST ON 12/26

DAILY RECORD SNOWFALL ON 12/8...9.2 /OLD RECORD 8.0...1977/
DAILY RECORD LOW MAXIMUM TEMPERATURE ON 12/14...6 /7...1985/
DAILY RECORD LOW MAXIMUM TEMPERATURE TIED ON 12/15...12 /12...
                                                          1985&2009/
DAILY RECORD PRECIPITATION ON 12/17...0.59 /0.51...1981/
DAILY RECORD SNOWFALL ON 12/17...13.7 /11.5...1981/
---------------------------------------------------------------------
  ...JANUARY THROUGH DECEMBER CLIMATE STATS FOR THE MARQUETTE NWS...

                ...WARMER AND WETTER THAN NORMAL...
          ...CALENDAR YEAR SNOWFALL A BIT BELOW NORMAL...

                         AVERAGE TEMPERATURE

              OBSERVED NORMAL DEPARTURE    RECORD         RANK
MARQUETTE NWS   42.2    40.1    +2.1     43.9 /2012/   7TH WARMEST

                            PRECIPITATION

              OBSERVED NORMAL DEPARTURE    RECORD         RANK
MARQUETTE NWS  40.27   35.68    +4.59   51.59 /1985/  11TH HIGHEST

                               SNOWFALL

              OBSERVED NORMAL DEPARTURE    RECORD         RANK
MARQUETTE NWS  190.3   203.3    -13.0    70.9 /1963/      ****

**** RANK NOT IN TOP 25
---------------------------------------------------------------------
GREAT LAKES WATER LEVELS (FEET/METERS ABOVE MEAN SEA LEVEL)

                             LAKE SUPERIOR  LAKE MICHIGAN-HURON
12/01/16 DAILY MEAN          602.32/183.59     579.24/176.55
12/31/16 DAILY MEAN          602.03/183.50     578.98/176.47
AVG NOV 2016 DAILY MEAN      602.33/183.59     579.36/176.59
AVG DEC 2015 DAILY MEAN      602.32/183.59     579.24/176.55
LONG TERM DEC DAILY MEAN     601.71/183.40     578.51/176.33
MAXIMUM DEC DAILY MEAN       603.05/183.81     581.56/177.26
                                 (1985)           (1986)
MINIMUM DEC DAILY MEAN       600.13/182.92     576.15/175.61
                                 (1925)           (2012)

...WATER LEVELS FALL BUT REMAIN ABOVE NORMAL IN DECEMBER...

EVEN THOUGH THE OBSERVED GREAT LAKES WATER LEVELS FELL DURING
DECEMBER DUE TO THE DRIER WEATHER OBSERVED THE LAST THREE MONTHS, THE
WELL ABOVE NORMAL WATER LEVELS AT THE END OF SUMMER ENSURED THE
LAKES REMAINED ABOVE AVERAGE THROUGH 12/31. AT THE END OF DECEMBER,
WATER LEVELS ON LAKE SUPERIOR WERE 3 TO 4 INCHES ABOVE NORMAL BUT 3
TO 4 INCHES LOWER THAN OBSERVED IN DECEMBER 2015. THE LEVEL ON LAKES
MICHIGAN AND HURON REMAINED 5 TO 6 INCHES ABOVE NORMAL AT THE END OF
THE MONTH BUT WERE ABOUT 3 INCHES LOWER THAN IN DECEMBER 2015.

OBTAIN GREAT LAKES WATER LEVEL DATA AS REPORTED BY THE U.S. ARMY
CORPS OF ENGINEERS AT

HTTP://WWW.LRE.USACE.ARMY.MIL/MISSIONS/GREATLAKESINFORMATION/
       GREATLAKESWATERLEVELS/CURRENTCONDITIONS.ASPX.
---------------------------------------------------------------------
                     DECEMBER CLIMATE HIGHLIGHTS

HIGHEST REPORTED TEMPERATURE...48 AT MUNISING AND GRAND MARAIS
                                IN ALGER COUNTY ON 12/26

LOWEST REPORTED TEMPERATURE...-22 AT STAMBAUGH IN IRON COUNTY
                               ON 12/19

HIGHEST AVERAGE TEMPERATURE...23.7 DEGREES AT MANISTIQUE

LOWEST AVERAGE TEMPERATURE...16.0 DEGREES AT HERMAN IN BARAGA COUNTY
                              AND STAMBAUGH

HIGHEST MONTHLY PRECIPITATION...5.28 INCHES AT ATLANTIC MINE IN
                                 HOUGHTON COUNTY

LOWEST MONTHLY PRECIPITATION...1.40 INCHES AT WATERSMEET IN GOGEBIC
                                COUNTY

HIGHEST MONTHLY SNOWFALL...103.1 INCHES AT PAINESDALE IN HOUGHTON
                            COUNTY

LOWEST MONTHLY SNOWFALL...16.4 INCHES AT ESCANABA

GREATEST MONTHLY SNOW DEPTH...27 INCHES AT PAINESDALE ON 12/30
                               AND 12/31

ALTHOUGH THE UNSEASONABLY MILD FLOW OF PACIFIC AIR THAT BROUGHT SOME
RECORD AUTUMNAL WARMTH TO UPPER MICHIGAN PREVAILED DURING THE FIRST
WEEK OF DECEMBER AND RETURNED AT TIMES AFTER 12/20, A CHANGE IN THE
WEATHER PATTERN TO ONE THAT FEATURED A DEEP TROUGH OVER CENTRAL
NORTH AMERICA AND VERY COLD AIR IN THE UPPER GREAT LAKES AT MID
MONTH RESULTED IN A NEAR BALANCE OF THE TEMPERATURE EXTREMES THAT
DOMINATED DURING THE DIFFERENT WEATHER PATTERNS. REPORTED DECEMBER
MEAN TEMPERATURES BETWEEN 16 AND 24 DEGREES RANGE FROM NEAR NORMAL
TO ONE DEGREE ABOVE AVERAGE AND ARE 16 TO AS MUCH AS 23 DEGREES
LOWER THAN THE AVERAGE TEMPERATURES OBSERVED IN NOVEMBER, WHICH WAS
A RECORD WARMEST MONTH AT MANY PLACES.

WHILE THE UNSEASONABLY MILD PACIFIC FLOW DOMINATED, MAXIMUM
TEMPERATURES OVER 40 OCCURRED AT SOME PLACES IN UPPER MICHIGAN ON
12/1, 12/5, 12/6 AND 12/26. THE MERCURY DID NOT FALL TO 32 OR BELOW
AT AT LEAST SOME LOCATIONS EACH MORNING FROM 12/1 TO 12/6 AND AGAIN
ON 12/24. MEAN DAILY TEMPERATURES DURING THE WARMER STREAKS OF
WEATHER WERE UP TO 10 TO 15 DEGREES ABOVE NORMAL. DURING THE COLDER
TIME AT MID MONTH, THERE WERE SOME SUB-ZERO MINIMUM TEMPERATURES
EVERYDAY FROM 12/10 THROUGH 12/19, EXCEPT ON 12/12 AND 12/17, AND
AGAIN ON 12/28. READINGS FELL TO -10 OR LOWER ON 12/10, 12/11,
12/15, 12/16, 12/18 AND 12/19, INCLUDING THE MONTHLY MINIMUM OF -22
AT STAMBAUGH ON 12/19. AT IRONWOOD, THE HIGH TEMPERATURE ON 12/18
DID NOT RISE ABOVE ZERO, HOLDING AT A FRIGID -2. MEAN DAILY
TEMPERATURES ON EVERY DAY FROM 12/10 THROUGH 12/19 EXCEPT 12/12 WERE
GENERALLY 10 TO AS MUCH AS 20 DEGREES BELOW NORMAL, EXCEPT UP TO 25
DEGREES BELOW AVERAGE ON 12/18, WHICH ENDED UP AS THE COLDEST DAY OF
THE MONTH AT MOST SPOTS.

DURING THE PERIOD FROM 12/7 THROUGH 12/19 THAT WAS DOMINATED BY A
NEAR STEADY FLOW OF ARCTIC AIR OVER THE RELATIVELY WARM WATERS OF
LAKE SUPERIOR, LAKE EFFECT SNOWS FELL ALMOST CONTINUOUSLY IN THE
SNOW BELTS NEAR LAKE SUPERIOR FAVORED BY WEST TO NORTHWEST WINDS. IN
COMBINATION WITH THE SNOW THAT ACCOMPANIED THE PASSAGE OF SOME
LARGER SCALE LOW PRESSURE SYSTEMS ON 12/11 INTO 12/12, 12/17 INTO
12/18 AND ON 12/21 AS WELL AS ADDITIONAL LAKE EFFECT SNOWS THAT
IMPACTED THE AREA AT THE END OF DECEMBER, AS MUCH AS 103 INCHES OF
SNOW PILED UP AT PAINESDALE IN HOUGHTON COUNTY DURING THE MONTH.
WHILE MONTHLY PRECIPITATION AND SNOWFALL WERE ABOVE NORMAL AT MOST
PLACES DURING THIS ACTIVE MONTH OF WEATHER, THE WEST TO NORTHWEST
SNOW BELTS ACROSS WESTERN UPPER MICHIGAN FROM THE PORCUPINE
MOUNTAINS THROUGH THE KEWEENAW AND EAST OF MUNISING WERE HARDEST
HIT. ATLANTIC MINE IN HOUGHTON COUNTY REPORTED 5.28 INCHES OF WATER
EQUIVALENT PRECIPITATION AND 89.5 INCHES OF SNOW. THE 4.89 INCHES
OF WATER EQUIVALENT PRECIPITATION THAT FELL AT THE HOUGHTON COUNTY
AIRPORT IS ALMOST 250 PERCENT OF THE DECEMBER NORMAL FOR THAT SITE.
TO THE EAST OF MUNISING, A LOCATION NEAR GRAND MARAIS REPORTED
ALMOST 75 INCHES OF SNOW IN DECEMBER. MUNISING MEASURED 5.15 INCHES
OF WATER EQUIVALENT PRECIPITATION IN DECEMBER, ALMOST 140 PERCENT OF
THE MONTHLY AVERAGE.

EVEN OVER SOUTH CENTRAL UPPER MICHIGAN, WHICH MISSED OUT ON THE LAKE
EFFECT SNOWS, THE ACTIVE WEATHER PATTERN RESULTED IN NORMAL TO ABOVE
AVERAGE PRECIPITATION AND SNOWFALL. MOST PLACE THERE REPORTED 1.50
TO 2.50 INCHES OF WATER EQUIVALENT PRECIPITATION AND 15 TO 25 INCHES
OF SNOW, AS MUCH AS 125 TO 150 PERCENT THE DECEMBER NORMAL AT A FEW
LOCATIONS.
---------------------------------------------------------------------
...JANUARY THROUGH DECEMBER 2016 CLIMATE STATS FOR UPPER MICHIGAN...

               ...TOP TEN WARMEST AT MOST PLACES...
          ...ABOVE NORMAL PRECIPITATION AT MOST PLACES...

                         AVERAGE TEMPERATURE

               OBSERVED NORMAL DEPARTURE    RECORD          RANK
MANISTIQUE       44.0    41.8    +2.2     44.6 /1941/    3RD WARMEST

IRON MOUNTAIN    45.0    42.3    +2.7     46.3 /1998/    5TH WARMEST

MUNISING         43.7    42.1    +1.6     45.1 /2012/    5TH WARMEST

HOUGHTON         43.4    40.5    +2.9     44.7 /1987/    6TH WARMEST

NEWBERRY         44.3    42.0    +2.3     46.0 /1998/    6TH WARMEST

MARQUETTE NWS    42.2    40.1    +2.1     43.9 /2012/    7TH WARMEST

IRONWOOD         42.4    40.1    +2.3     46.4 /1931/   12TH WARMEST

                            PRECIPITATION

               OBSERVED NORMAL DEPARTURE    RECORD          RANK
MANISTIQUE      38.15   30.17    +7.98   38.59 /1979/    2ND HIGHEST

IRONWOOD        47.19   34.93   +12.26   53.46 /2013/    3RD HIGHEST

MARQUETTE NWS   40.27   35.68    +4.59   51.59 /1985/   11TH HIGHEST

NEWBERRY        35.91   34.21    +1.70   47.36 /2004/   13TH HIGHEST

HOUGHTON        40.17   32.18    +7.99   53.43 /1985/   15TH HIGHEST

MARQUETTE CITY  36.10   29.13    +6.97   42.83 /1881/   22ND HIGHEST

IRON MOUNTAIN   30.95   29.72    +1.23   37.53 /1938/       ****

                               SNOWFALL

               OBSERVED NORMAL DEPARTURE    RECORD          RANK
NEWBERRY        176.5   132.2    +44.3   222.7 /2013/   10TH HIGHEST

IRONWOOD        212.2   188.2    +24.0   279.4 /1989/   12TH HIGHEST

HOUGHTON        245.8   207.7    +38.1   356.2 /1989/   13TH HIGHEST

IRON MOUNTAIN    57.3    58.4    -1.1     26.7 /2010/       ****

MANISTIQUE       69.2    74.4    -5.2     29.3 /1902/       ****

MARQUETTE CITY  104.6   117.2    -12.6    50.0 /1941/       ****

MARQUETTE NWS   190.3   203.3    -13.0    70.9 /1963/       ****

**** RANK NOT IN TOP 25
---------------------------------------------------------------------
SOME OTHER TEMPERATURE AND PRECIPITATION OBSERVATIONS ACROSS UPPER
MICHIGAN IN DECEMBER 2016 INCLUDE:

IRONWOOD...AVERAGE TEMPERATURE 16.9 /0.3 DEGREE ABOVE NORMAL/
           PRECIPITATION 2.56 INCHES /0.45 INCH ABOVE NORMAL/
           SNOWFALL 44.6 INCHES /1.7 INCHES BELOW NORMAL/

WATERSMEET (GOGEBIC COUNTY)...PRECIPITATION 1.40 INCHES
                              SNOWFALL 18.3 INCHES

ONTONAGON...PRECIPITATION 2.71 INCHES
            SNOWFALL 40.7 INCHES

GREENLAND (ONTONAGON COUNTY)...AVERAGE TEMPERATURE 22.5 DEGREES
                               PRECIPITATION 4.11 INCHES
                               SNOWFALL 63.8 INCHES

HOUGHTON COUNTY...AVERAGE TEMPERATURE 21.4 /1.2 DEGREES ABOVE NORMAL/
 AIRPORT          PRECIPITATION 4.69 INCHES /2.80 INCHES ABOVE NORMAL/
                  SNOWFALL 76.9 INCHES /24.0 INCHES ABOVE NORMAL/

ATLANTIC MINE (HOUGHTON COUNTY)...PRECIPITATION 5.28 INCHES
                                  SNOWFALL 89.5 INCHES

PAINESDALE (HOUGHTON COUNTY)...SNOWFALL 103.1 INCHES

COPPER HARBOR...AVERAGE TEMPERATURE 22.1 DEGREES

JACOBSVILLE (HOUGHTON COUNTY)...AVERAGE TEMPERATURE 21.0 DEGREES
                                PRECIPITATION 3.58 INCHES
                                SNOWFALL 43.5 INCHES

BARAGA...AVERAGE TEMPERATURE 20.8 DEGREES
         PRECIPITATION 2.66 INCHES
         SNOWFALL 40.8 INCHES

HERMAN (BARAGA COUNTY)...AVERAGE TEMPERATURE 16.0 DEGREES
                         PRECIPITATION 4.18 INCHES
                         SNOWFALL 52.4 INCHES

CLARKSBURG (MARQUETTE COUNTY)...AVERAGE TEMPERATURE 16.8 DEGREES
                                PRECIPITATION 1.73 INCHES
                                SNOWFALL 27.5 INCHES

BIG BAY (MARQUETTE COUNTY)...AVERAGE TEMPERATURE 22.8 DEGREES
                             PRECIPITATION 3.44 INCHES
                             SNOWFALL 40.9 INCHES

MARQUETTE CITY...AVERAGE TEMPERATURE 23.3 /0.2 DEGREE BELOW NORMAL/
                 PRECIPITATION 2.01 INCHES /0.04 INCH ABOVE NORMAL/
                 SNOWFALL 22.4 INCHES /2.9 INCHES BELOW NORMAL/

CHATHAM (ALGER COUNTY)...AVERAGE TEMPERATURE 21.0 DEGREES
                         PRECIPITATION 2.98 INCHES
                         SNOWFALL 36.4 INCHES

MUNISING...AVERAGE TEMPERATURE 21.8 /1.1 DEGREES BELOW NORMAL/
           PRECIPITATION 5.15 INCHES /1.40 INCHES ABOVE NORMAL/
           SNOWFALL 53.1 INCHES /11.9 INCHES ABOVE NORMAL/

GRAND MARAIS...SNOWFALL 74.3 INCHES
(10 MILES SOUTH)

NEWBERRY...AVERAGE TEMPERATURE 23.4 /1.2 DEGREES ABOVE NORMAL/
           PRECIPITATION 2.93 INCHES /0.08 INCH ABOVE NORMAL/
           SNOWFALL 40.1 INCHES /6.8 INCHES ABOVE NORMAL/

STAMBAUGH (IRON COUNTY)...AVERAGE TEMPERATURE 16.0 DEGREES
                          PRECIPITATION 1.60 INCHES
                          SNOWFALL 18.7 INCHES

AMASA (IRON COUNTY)...AVERAGE TEMPERATURE 17.1 DEGREES
                      PRECIPITATION 1.74 INCHES
                      SNOWFALL 20.8 INCHES

FORD AIRPORT...AVERAGE TEMPERATURE 19.9 DEGREES
 NEAR IRON MOUNTAIN

IRON MOUNTAIN...AVERAGE TEMPERATURE 19.6 /0.2 DEGREE ABOVE NORMAL/
                PRECIPITATION 1.91 INCHES /0.36 INCH ABOVE NORMAL/
                SNOWFALL 18.2 INCHES /4.3 INCHES ABOVE NORMAL/

NORWAY (DICKINSON COUNTY)...AVERAGE TEMPERATURE 21.0 DEGREES
                            PRECIPITATION 1.88 INCHES
                            SNOWFALL 20.8 INCHES

MENOMINEE...PRECIPITATION 2.18 INCHES
            SNOWFALL 17.4 INCHES

ESCANABA...SNOWFALL 16.4 INCHES

GLADSTONE (DELTA COUNTY)...PRECIPITATION 2.55 INCHES
                           SNOWFALL 21.7 INCHES

GARDEN CORNERS (DELTA COUNTY)...AVERAGE TEMPERATURE 23.0 DEGREES
                                PRECIPITATION 2.62 INCHES
                                SNOWFALL 20.9 INCHES

COOKS (SCHOOLCRAFT COUNTY)...PRECIPITATION 2.77 INCHES
                             SNOWFALL 20.3 INCHES

MANISTIQUE...AVERAGE TEMPERATURE 23.7 /0.4 DEGREE ABOVE NORMAL/
             PRECIPITATION 3.23 INCHES /1.63 INCHES ABOVE NORMAL/
             SNOWFALL 17.8 INCHES /1.5 INCHES BELOW NORMAL/
---------------------------------------------------------------------
                           FEBRUARY FORECAST

THE CLIMATE PREDICTION CENTER (CPC) IS FORECASTING EQUAL CHANCES OF
AN ABOVE AND BELOW NORMAL MONTHLY MEAN TEMPERATURE AND MONTHLY
PRECIPITATION ACROSS ALL OF UPPER MICHIGAN IN FEBRUARY 2017.

                          FEBRUARY CLIMATOLOGY

ALTHOUGH DAYLIGHT LENGTHENS NOTICEABLY DURING FEBRUARY (580 MINUTES
OF POSSIBLE SUNSHINE ON 2/1 TO 664 MINUTES ON 2/28)...WINTER USUALLY
MAINTAINS ITS ICY GRIP ON UPPER MICHIGAN DURING THE MONTH. IN
FACT...THE LOWEST TEMPERATURE DURING THE YEAR OFTEN OCCURS IN THE
SECOND MONTH. HUMBOLDT IN MARQUETTE COUNTY OBSERVED A FRIGID -49 LOW
ON THE MORNING OF 2/10/1899...THE LOWEST READING EVER RECORDED IN
UPPER MICHIGAN. THE FREQUENT ARRIVAL OF ARCTIC AIRMASSES CAN STILL
CAUSE TEMPERATURES TO PLUNGE AS LOW AS 25 TO 35 BELOW ZERO EVEN
DURING THE LAST WEEK OF THE MONTH. IN RECENT YEARS...BOTH FEBRUARY
2014 AND 2015 FEATURED SOME RECORD OR NEARLY RECORD LOW MEAN MONTHLY
TEMPERATURES. A NEARLY CONTINUOUS FLOW OF CANADIAN AIR UNDER A
PERSISTENT DEEP TROUGH DROPPED THE MEAN MONTHLY TEMPERATURE TO
BETWEEN 9 AND 12 DEGREES BELOW THE FEBRUARY AVERAGE IN 2014 AND TO
12 TO 15 DEGREES BELOW THE MONTHLY MEAN IN 2015. MANY PLACES ENDURED
A COLDEST OR AT LEAST TOP FIVE COLDEST FEBRUARY IN BOTH THESE
YEARS...AND LAKE SUPERIOR AND NORTHERN LAKE MICHIGAN BECAME ALMOST
COMPLETELY ICE COVERED BY THE END OF BOTH THOSE MONTHS. SOME OTHER
COLD FEBRUARYS IN THE NOT TOO DISTANT PAST OCCURRED IN 1994...2003
AND 2007...YEARS WHEN FEBRUARY ENDED UP AS ONE OF THE TOP TEN
COLDEST SECOND MONTHS AT MANY LOCATIONS.

BUT THE CONTINUED CLIMB OF THE SUN IN THE SOUTHERN SKY PROMISES THE
END OF WINTER IS IN SIGHT AND THAT SPRINGTIME IS GETTING CLOSER.
AVERAGE TEMPERATURES RISE STEADILY AFTER THE FIRST WEEK OF THE
MONTH...FROM 12 ON 2/7 TO 17 ON 2/28 AT THE MARQUETTE NWS. DURING
THE LAST HALF OF FEBRUARY...RECORD HIGH TEMPERATURES REACH WELL INTO
THE 50S AND 60S. AT MANY SITES...FEBRUARY 1998...1999...2000 AND
2002 ALL FALL INTO THE TOP 10 WARMEST ON RECORD. IN FEBRUARY 2000...
RECORD WARMTH AFTER 2/21 CAUSED RAPID SNOW MELT...AND ICE JAM
FLOODING WAS OBSERVED ON THE ONTONAGON RIVER. IN FACT...THE
TEMPERATURE AVERAGED 39.3 DEGREES BETWEEN 2/22/2000 AND 2/29/2000 AT
THE MARQUETTE NWS...MARKING THIS 8-DAY PERIOD AS THE WARMEST WEEK IN
THE SECOND MONTH SINCE RECORDS BEGAN IN 1961. BUT AT MOST LOCATIONS
IN UPPER MICHIGAN...FEBRUARY 1998 GOES DOWN IN THE RECORD BOOKS AS
THE WARMEST FEBRUARY EVER. TEMPERATURES AT SOME PLACES ENDED THE
MONTH AS MUCH AS 15 DEGREES ABOVE NORMAL AS A STRONG EL NINO AND
ZONAL PACIFIC FLOW ALOFT PREVENTED THE NORMAL PARADE OF ARCTIC
AIRMASSES FROM INVADING THE UPPER GREAT LAKES.

AVERAGE SNOWFALL OVER UPPER MICHIGAN DURING FEBRUARY IS LESS THAN IN
JANUARY AS THE MEAN POSITION OF THE JET STREAM AND STORM TRACK MOVES
A BIT FARTHER SOUTH. FALLING LAKE SUPERIOR WATER TEMPERATURES AND
THE FORMATION OF ICE ON THE LAKE SOME YEARS ALSO REDUCE THE
INTENSITY OF LAKE EFFECT SNOW. EVEN SO...THERE IS A SHARP DECREASE
IN AVERAGE SNOWFALL FROM AREAS NEAR LAKE SUPERIOR TO INLAND
LOCATIONS ALONG THE WISCONSIN BORDER. WHILE HOUGHTON TYPICALLY
TALLIES ALMOST 33 INCHES OF THE WHITE STUFF...IRON MOUNTAIN WILL LOG
ONLY 10 INCHES DURING A TYPICAL FEBRUARY. ALTHOUGH MONTHLY
TEMPERATURES AVERAGED WELL ABOVE NORMAL...FEBRUARY 2002 WILL LONG BE
REMEMBERED FOR HEAVY PRECIPITATION AND SNOWFALL...ESPECIALLY IN THE
LAKE EFFECT SNOW BELTS. VERY MILD WEATHER INTO FEBRUARY THAT WINTER
MAINTAINED LAKE SUPERIOR TEMPERATURES WELL ABOVE NORMAL...SO THAT
HEAVIER THAN USUAL LAKE EFFECT AND LAKE ENHANCED SNOW ACCOMPANIED A
GREATER THAN AVERAGE NUMBER OF SYNOPTIC STORMS. THE 91.9 INCHES OF
SNOW THAT FELL AT THE MARQUETTE NWS THAT MONTH PUSHES FEBRUARY 2002
TO THE TOP OF THE LIST OF NOT ONLY THE SNOWIEST FEBRUARY...BUT ALSO
THE SNOWIEST CALENDAR MONTH. THE 5.35 INCHES OF LIQUID EQUIVALENT
PRECIPITATION THAT FELL AT THAT LOCATION EASILY ECLIPSED THE
PREVIOUS STANDARD OF 3.62 INCHES OBSERVED IN FEBRUARY 1971. MANY
LOCATIONS FROM IRONWOOD TO NEWBERRY ALSO RECORDED A TOP FIVE
SNOWIEST AND WETTEST FEBRUARY IN 2002. DURING THE COLD FEBRUARY OF
1989...THE HOUGHTON COUNTY AIRPORT RECORDED 89.8 INCHES OF SNOW. NOT
ONLY IS FEBRUARY 1998 THE WARMEST AT MANY LOCATIONS...IT IS ALSO THE
LEAST SNOWY AT MANISTIQUE (1.0 INCH)...IRONWOOD (2.8 INCHES)...
ONTONAGON (5.0 INCHES)...AND THE HOUGHTON COUNTY AIRPORT (5.5
INCHES). MONTHLY SNOWFALLS OF 3.0 INCHES AT NEWBERRY AND 8.8 INCHES
AT MUNISING PLACE FEBRUARY 1998 AMONG THE TOP FIVE LEAST SNOWY.

                         OUTLOOK FOR SPRING

THE CLIMATE PREDICTION CENTER (CPC) IS FORECASTING EQUAL CHANCES OF
AN ABOVE AND BELOW NORMAL 3-MONTH AVERAGE TEMPERATURE BUT A GREATER
THAN CLIMATOLOGICAL CHANCE OF ABOVE NORMAL 3-MONTH PRECIPITATION
ACROSS ALL OF UPPER MICHIGAN IN MARCH THROUGH MAY 2017.

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 1981 THROUGH 2010.
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.

THE 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



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