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

661
CXUS53 KMQT 211018 CCA
CLMMQT

CLIMATE REPORT...FINAL
NATIONAL WEATHER SERVICE MARQUETTE MI
450 AM EDT FRI OCT 21 2016

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

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

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1961 TO 2016

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              93   09/09/2002
 LOW               21   09/27/1965
HIGHEST            80   09/05        63      17       86  09/01
LOWEST             41   09/02        44      -3       30  09/30
AVG. MAXIMUM     67.7              65.8     1.9     71.7
AVG. MINIMUM     50.8              45.8     5.0     51.0
MEAN             59.3              55.8     3.5     61.4
DAYS MAX >= 90      0               0.1    -0.1        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               1.6    -1.6        2
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.60   1968
 MINIMUM         1.21   1989
TOTALS           5.70              3.72    1.98     1.60
DAILY AVG.       0.19              0.12    0.07     0.05
DAYS >= .01        13              13.4    -0.4        8
DAYS >= .10         7               7.8    -0.8        5
DAYS >= .50         4               2.5     1.5        0
DAYS >= 1.00        3               0.7     2.3        0
GREATEST
 24 HR. TOTAL    1.55   09/10 TO 09/10

SNOWFALL (INCHES)
RECORDS
 TOTAL            1.7   1993
TOTALS            0.0               0.1    -0.1      0.0
SINCE 7/1           T               0.1    -0.1      0.0
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         0               0.0     0.0        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL      0.0   MM

DEGREE_DAYS
HEATING TOTAL     173               297    -124      165
 SINCE 7/1        273               482    -209      333
COOLING TOTAL      10                21     -11       65
 SINCE 1/1        246               241       5      247
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              MM
HIGHEST WIND SPEED/DIRECTION    MM        DATE   MM
HIGHEST GUST SPEED/DIRECTION    36/270    DATE  09/19

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                4     RAIN                       4
LIGHT RAIN               18     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       8     FOG W/VIS <= 1/4 MILE      3
HAZE                      0

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

&&

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

...VERY WARM...
...RECORD WARMEST SEPTEMBER AT MANISTIQUE...
...FIFTH WARMEST SEPTEMBER AT NEWBERRY...
...SIXTH WARMEST SEPTEMBER AT THE MARQUETTE NWS...
...EIGHTH WARMEST SEPTEMBER AT HOUGHTON AND MUNISING...
...TENTH WARMEST SEPTEMBER AT IRON MOUNTAIN AND MARQUETTE CITY...

...WETTER THAN NORMAL...
...FIFTH WETTEST SEPTEMBER AT NEWBERRY...
...NINTH WETTEST SEPTEMBER AT IRONWOOD...
...TENTH WETTEST SEPTEMBER AT HOUGHTON...

SEPTEMBER CLIMATE STATISTICS FOR THE MARQUETTE NWS
 IN NEGAUNEE TOWNSHIP

                                    NORMAL   DEPARTURE
AVERAGE TEMPERATURE         59.3     55.8   PLUS    3.5
AVERAGE HIGH TEMPERATURE    67.7     65.8   PLUS    1.9
AVERAGE LOW TEMPERATURE     50.8     45.8   PLUS    5.0
HEATING DEGREE DAYS          173      297  MINUS    124
COOLING DEGREE DAYS           10       21  MINUS     11
TOTAL PRECIPITATION         5.70     3.72   PLUS   1.98
TOTAL SNOWFALL                 0      0.1  MINUS    0.1

HIGHEST TEMPERATURE:                    80 ON 9/5
LOWEST TEMPERATURE:                     41 ON 9/2
GREATEST CALENDAR DAY PRECIPITATION:  1.55 ON 9/10
GREATEST 24 HOUR PRECIPITATION:       1.55 ON 9/10
GREATEST CALENDAR DAY SNOWFALL:          0
PEAK WIND SPEED:      36 MPH FROM THE WEST ON 9/19

DAILY RECORD PRECIPITATION ON 9/16...1.28 /OLD RECORD 0.89...1972/
SIXTH HIGHEST SEPTEMBER MEAN TEMPERATURES...59.3 /RECORD 61.8...2004/
---------------------------------------------------------------------
 ...JANUARY THROUGH SEPTEMBER CLIMATE STATS FOR THE MARQUETTE NWS...

                ...WARMER AND WETTER THAN NORMAL...

                         AVERAGE TEMPERATURE

              OBSERVED NORMAL DEPARTURE    RECORD         RANK
MARQUETTE NWS   44.8    43.3    +1.5     47.6 /2012/   8TH WARMEST

                            PRECIPITATION

              OBSERVED NORMAL DEPARTURE    RECORD         RANK
MARQUETTE NWS  33.47   26.09    +7.38   37.00 /1985/   6TH HIGHEST
---------------------------------------------------------------------
GREAT LAKES WATER LEVELS (FEET/METERS ABOVE MEAN SEA LEVEL)

                            LAKE SUPERIOR  LAKE MICHIGAN-HURON
9/01/16 DAILY MEAN          602.68/183.70     580.06/176.80
9/30/16 DAILY MEAN          602.74/183.71     579.80/176.72
AVG AUG 2016 DAILY MEAN     602.69/183.70     580.11/176.82
AVG SEP 2015 DAILY MEAN     602.65/183.69     579.72/176.70
LONG TERM SEP DAILY MEAN    602.13/183.53     579.07/176.50
MAXIMUM SEP DAILY MEAN      603.22/183.86     581.96/177.38
                                (1985)           (1986)
MINIMUM SEP DAILY MEAN      600.46/183.02     576.64/175.76
                                (2007)           (1964)

...GREAT LAKES WATER LEVELS STILL WELL ABOVE NORMAL IN SEPTEMBER...

EVEN THOUGH LAKE SUPERIOR WATER LEVELS NORMALLY REMAIN STEADY FROM
AUGUST INTO SEPTEMBER DUE TO INCREASED EVAPORATION AT A TIME WATER
TEMPERATURES ARE HIGHEST, ABOVE NORMAL RAINFALL IN THE SUPERIOR
DRAINAGE BASIN THROUGH THE SUMMER RESULTED IN AN INCH RISE IN WATER
LEVEL FROM AUGUST TO SEPTEMBER IN 2016. AT THE END OF SEPTEMBER,
WATER LEVELS ON LAKE SUPERIOR WERE 7 TO 8 INCHES ABOVE NORMAL AND
AROUND AN INCH HIGHER THAN OBSERVED IN SEPTEMBER 2015. SINCE THE
LOWER LAKES HAVE BEEN DRIER THIS SUMMER AND ABOVE NORMAL
TEMPERATURES HAVE RESULTED IN A GOOD DEAL OF EVAPORATION, THE LEVEL
ON LAKES MICHIGAN AND HURON FELL ABOUT 3 INCHES DURING SEPTEMBER.
BUT THE LEVEL ON THESE LAKES REMAINED 8 TO 9 INCHES ABOVE NORMAL AT
THE END OF THE MONTH AND ABOUT AN INCH HIGHER THAN IN SEPTEMBER 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.
---------------------------------------------------------------------
                     SEPTEMBER CLIMATE HIGHLIGHTS

HIGHEST REPORTED TEMPERATURE...84 AT PELKIE IN BARAGA COUNTY AND
                                IRON MOUNTAIN ON 9/5 AND AT
                                STONINGTON IN DELTA COUNTY ON 9/8

LOWEST REPORTED TEMPERATURE...31 AT A SPOT NORTH OF NEWBERRY ON 9/24

HIGHEST AVERAGE TEMPERATURE...63.0 DEGREES AT MARQUETTE CITY

LOWEST AVERAGE TEMPERATURE...56.9 DEGREES AT HERMAN IN BARAGA COUNTY,
                              CLARKSBURG IN MARQUETTE COUNTY AND
                              STAMBAUGH IN IRON COUNTY

HIGHEST MONTHLY PRECIPITATION...7.34 INCHES AT ATLANTIC MINE
                                 IN HOUGHTON COUNTY

LOWEST MONTHLY PRECIPITATION...3.31 INCHES AT COPPER HARBOR

A PERSISTENT WEATHER PATTERN IN SEPTEMBER THAT FEATURED AN UPPER
RIDGE OVER THE SOUTHEAST UNITED STATES DOWNSTREAM OF A TROUGH OVER
THE WEST RESULTED IN ANOTHER WARM AND WET MONTH AS THE SOUTHWEST FLOW
BETWEEN THESE FEATURES DREW WARM AND MOIST AIR INTO UPPER GREAT LAKES
MUCH OF THE TIME. IN FACT, SEPTEMBER 2016 ENDED UP AS ONE OF THE TOP
TEN WARMEST NINTH MONTHS AT MANY PLACES AND THE WARMEST ON RECORD AT
MANISTIQUE. MEAN MONTHLY TEMPERATURES RANGING BETWEEN ABOUT 57 AND
63 DEGREES ARE 3 TO 5 DEGREES ABOVE THE SEPTEMBER NORMAL AND 6 TO 9
DEGREES BELOW THE AUGUST AVERAGES.

THE FREQUENT PASSAGE OF LOW PRESSURE SYSTEMS EMBEDDED IN THE MEAN
SOUTHWEST FLOW ALOFT AND THEIR INTERACTION WITH THE MOIST AIRMASSES
THAT FLOWED INTO THE GREAT LAKES RESULTED IN WELL ABOVE NORMAL
SEPTEMBER RAINFALL ALMOST EVERYWHERE. AS WAS THE CASE IN AUGUST, THE
HEAVIEST RAINS TENDED TO FALL OVER THE NORTHWEST HALF OF THE U.P. A
NUMBER OF PLACES IN THIS AREA MEASURED 6 INCHES OR MORE RAIN,
INCLUDING THE MONTHLY HIGH OF 7.34 INCHES THAT FELL AT ATLANTIC MINE
IN HOUGHTON COUNTY. THESE HEAVY PRECIPITATION AMOUNTS WERE CLOSE TO
DOUBLE THE SEPTEMBER NORMALS AT SOME LOCATIONS. EVEN WHERE MONTHLY
PRECIPITATION WAS AS LOW AS 3.5-4.0 INCHES IN A SWATH FROM IRON
MOUNTAIN TO ESCANABA, THIS RAINFALL WAS A BIT ABOVE NORMAL.

JUST LIKE IN AUGUST, THE SEPTEMBER WARMTH WAS DUE MAINLY TO WELL
ABOVE NORMAL MINIMUM TEMPERATURES. FOR INSTANCE AT IRON MOUNTAIN,
THE AVERAGE SEPTEMBER LOW TEMPERATURE OF 52.0 DEGREES WAS 6.2
DEGREES ABOVE NORMAL WHILE THE 61.8 DEGREE MEAN MAXIMUM TEMPERATURE
WAS ONLY 2.1 DEGREES ABOVE AVERAGE.

AT MANY PLACES, MINIMUM TEMPERATURES NEVER FELL BELOW 40 IN
SEPTEMBER 2016, SETTING OR TYING RECORDS FOR THE FEWEST DAYS IN ANY
SEPTEMBER WITH A LOW TEMPERATURE UNDER 40. FOR INSTANCE AT THE
MARQUETTE NWS, THERE WERE NO DAYS WHEN THE LOW TEMPERATURE FELL
UNDER 40, COMPARED TO AN AVERAGE OF NINE DAYS WHEN READINGS FALL
BELOW THAT MARK DURING A TYPICAL SEPTEMBER.

NUMBER OF DAYS IN SEPTEMBER 2016 WITH MINIMUM TEMPERATURE UNDER 40

              SEP 2016    AVERAGE            RECORD /OR PREVIOUS/
               NUMBER      NUMBER  DEPARTURE   FEWEST SEP DAYS

MARQUETTE NWS    0           9        -9              2

IRON MOUNTAIN    0           8        -8              1

NEWBERRY         0           7        -7              1

IRONWOOD         0           7        -7              0

MUNISING         0           6        -6              0

MANISTIQUE       0           6        -6              0

HOUGHTON         0           5        -5              0

MARQUETTE CITY   0           3        -3              0

ALTHOUGH MANY PLACES DID NOT REPORT A LOW TEMPERATURE UNDER 40 AT
ALL IN SEPTEMBER, THE INTERIOR COOL SPOTS DID SEE THE MERCURY FALL
INTO THE 30S ON A NUMBER OF MORNINGS WHEN MORE SEASONABLY CHILLY
AIRMASSES DOMINATED THE GREAT LAKES. AT LEAST ONE SPOT SAW READINGS
DIP INTO THE 30S ON 9/2, 9/3, 9/11, 9/14, 9/15, 9/20, 9/23, 9/24,
9/29 AND 9/30. THESE LOW TEMPERATURES ARE NORMAL FOR SEPTEMBER AT
THE COOLER INTERIOR LOCATIONS.

DURING ONE OF THE WARMER PERIODS IN SEPTEMBER, MINIMUM TEMPERATURES
DID NOT FALL BELOW 70 AT A FEW PLACES MAINLY NEAR LAKE MICHIGAN ON
9/5 ON 9/6. ALTHOUGH THERE WERE NO REPORTS OF 90-DEGREE
TEMPERATURES, SOME PLACES SAW THE THERMOMETER PEAK IN THE 80S
DURING THE WARMER DAYS ON 9/4, 9/5, 9/8 AND 9/12.

THE FIRST HEAVY RAIN EVENT OF THE MONTH OCCURRED ON LABOR DAY AND
DAYS IMMEDIATELY AFTERWARD. A DEEP SOUTHWEST FLOW BETWEEN THE
WESTERN TROUGH AND THE RIDGE OVER THE SOUTHEAST STATES DREW VERY
WARM AND HUMID AIR INTO THE UPPER LAKES ON 9/5. AS A COLD FRONT
APPROACHED ON LABOR DAY, SOME SHOWERS AND THUNDERSTORMS CAUSING
LOCALLY HEAVY RAIN IMPACTED MAINLY THE NORTHWEST PART OF UPPER
MICHIGAN INTO THE MORNING ON 9/6. BUT AS THE FRONT SHIFTED SLOWLY TO
THE SOUTHEAST ON 9/6, THE SHOWERS AND STORMS DID SO AS WELL. THE
HEAVIEST RAIN THEN SHIFTED TO THE SOUTH DURING THE NIGHT ON 9/6-9/7
FOLLOWING THE SLOW MOVING FRONT. WITH ALL THE LINGERING LOW LEVEL
MOISTURE, SOME LOCALLY DENSE FOG DEVELOPED IN THE EARLY MORNING
HOURS ON 9/7. RAINFALL TOTALS ON 9/5 INTO 9/7 WERE AN INCH OR MORE
AT MANY PLACES. THE HEAVIEST PRECIPITATION FELL OVER THE WEST AND
ESPECIALLY THE KEWEENAW, WHERE AS MUCH AS 2.93 INCHES OF RAIN FELL
AT ATLANTIC MINE IN HOUGHTON COUNTY. SOME OTHER SIGNIFICANT RAINFALL
WAS 2.78 INCHES AT GREENLAND IN ONTONAGON COUNTY AND 2.74 INCHES AT
JACOBSVILLE IN HOUGHTON COUNTY. THE LEAST RAIN AROUND 0.50 INCH
DURING THIS TIME FELL OVER THE SOUTH CENTRAL FROM IRON MOUNTAIN TO
MENOMINEE, ESCANABA AND MANISTIQUE.

THE STALLED FRONT JUST TO THE SOUTH RETURNED TO THE NORTH AS A WARM
FRONT ON 9/7, BRINGING ANOTHER ROUND OF MODERATE SHOWERS AND SOME
THUNDERSTORMS. THE HEAVIEST RAINFALL THAT LINGERED INTO 9/8 OCCURRED
OVER THE NORTH CENTRAL, WHERE UP TO 1.35 INCHES OF RAIN FELL AT BIG
BAY IN MARQUETTE COUNTY. HERMAN IN BARAGA COUNTY REPORTED THE SECOND
HIGHEST AMOUNT WITH 0.94 INCH. AREAS OF LOCALLY DENSE FOG PERSISTED
ON 9/7 INTO 9/8 AS WELL, ESPECIALLY OVER THE HIGHER TERRAIN OF THE
KEWEENAW AND NORTH CENTRAL U.P. THE PASSAGE OF A COLD FRONT ON 9/8
ENDED THE SHOWERS AND DISSIPATED THE FOG AS WEST WINDS GUSTING AS
HIGH AS 40 MPH OVER THE KEWEENAW ADVECTED DRIER AIR INTO THE UPPER
LAKES AND BROUGHT A RETURN OF MORE SUNSHINE.

THERE WAS ONLY A SHORT BREAK IN THE ACTIVE WEATHER PATTERN. THE
APPROACH OF ANOTHER DISTURBANCE AND LOW PRESSURE SYSTEM CAUSED
WIDESPREAD MODERATE TO HEAVY RAIN TO RETURN DURING THE EARLY MORNING
HOURS ON 9/10. BY THE TIME A COLD FRONT PASSED AND NORTHWEST WINDS
GUSTING AS HIGH AS 40 MPH NEAR LAKE SUPERIOR EAST OF MUNISING
DRAGGED COOLER, DRIER CANADIAN AIR INTO THE UPPER LAKES BY SUNSET ON
9/10, OVER AN INCH OF RAIN HAD FALLEN AT SOME PLACES. A LOCATION
NEAR COVINGTON IN BARAGA COUNTY LED REPORTING STATIONS WITH 1.69
INCHES OF RAIN. SENEY IN SCHOOLCRAFT COUNTY AND NEGAUNEE IN
MARQUETTE COUNTY WERE CLOSE BEHIND WITH 1.60 AND 1.55 INCHES
RESPECTIVELY.

A WAVE OF LOW PRESSURE RIDING NORTHEAST ALONG A PASSING COLD FRONT
ON 9/13 CAUSED SOME SHOWERS AND A FEW THUNDERSTORMS OVER MAINLY THE
SOUTHEAST UPPER PENINSULA ON 9/13. SEVERAL PLACES IN THIS AREA
REPORTED 0.50 INCH OF RAIN OR MORE, INCLUDING 1.03 INCHES NEAR
STONINGTON IN DELTA COUNTY.

ANOTHER ROUND OF MODERATE TO HEAVY RAIN DEVELOPED WEST-TO-EAST ON
9/16 AS THE COLD FRONT ASSOCIATED WITH A LOW PRESSURE SYSTEM
SHIFTING NORTHEAST FROM THE NORTHERN PLAINS TOWARD LAKE SUPERIOR AND
ONTARIO INTERACTED WITH A VERY MOIST AIRMASS THAT HAD MOVED INTO THE
UPPER LAKES IN THE SOUTHWEST FLOW AHEAD OF THE FRONT. RAINFALL
EXCEEDED AN INCH OVER MUCH OF CENTRAL UPPER MICHIGAN AND REACHED 2
INCHES OR MORE AT A COUPLE OF PLACES. ARNOLD IN MARQUETTE COUNTY
REPORTED 2.20 INCHES, WHILE A LOCATION SOUTH OF WETMORE IN ALGER
COUNTY NEAR THE DELTA COUNTY BORDER MEASURED 2.10 INCHES. THE FAR
WESTERN U.P. SAW THE LEAST RAIN DURING THIS EVENT, GENERALLY UNDER
0.25 INCH FROM IRONWOOD TO ONTONAGON. AFTER THE FRONT PASSED DURING
THE NIGHT ON 9/16-9/17, SOME DENSE FOG DEVELOPED AND PERSISTED UNTIL
JUST AFTER SUNRISE ON 9/17 AS THE LOW LEVEL DRYING BEHIND THE FRONT
WAS NOT PRONOUNCED.

AFTER A WEEK OF MAINLY DRY WEATHER, SOME MODERATE SHOWERS IN THE
GUSTY, MOIST SOUTHERLY FLOW AHEAD OF A COLD FRONT ATTENDANT TO
SURFACE LOW PRESSURE LIFTING FROM THE PLAINS INTO NORTHWEST ONTARIO
IMPACTED UPPER MICHIGAN ON 9/25 INTO THE EARLY MORNING HOURS ON
9/26. THE MORE WIDESPREAD HEAVIER PRECIPITATION FELL ACROSS THE EAST
HALF OF UPPER MICHIGAN, WHERE 0.50 INCH OF RAIN OCCURRED AT MANY
PLACES. MANISTIQUE HAD THE MOST WITH 1.21 INCHES, BUT NORWAY IN
DICKINSON COUNTY WAS CLOSE BEHIND WITH 1.19 INCHES. WEST WIND GUSTS
UP TO 45 MPH OVER THE KEWEENAW PENINSULA FOLLOWED THE COLD FRONTAL
PASSAGE ON 9/26, AND THESE STRONG WINDS PERSISTED INTO 9/27.

SINCE THE DEEP LOW PRESSURE SYSTEM THAT MOVED INTO NORTHWEST ONTARIO
TENDED TO SINK BACK TOWARD THE UPPER GREAT LAKES ON 9/27 INTO EARLY
9/28, NUMEROUS SHOWERS PERSISTED DURING THIS TIME, ESPECIALLY OVER
THE NORTHWEST HALF OF UPPER MICHIGAN WITH A CONTINUED GUSTY WEST
WIND OFF LAKE SUPERIOR. AN INCH OR MORE OF RAIN FELL AT SOME PLACES
OVER THE HIGHER TERRAIN OF THE WEST FROM THE KEWEENAW TO THE
PORCUPINE MOUNTAINS. IRONWOOD LOGGED 2.53 INCHES OF RAIN FROM LATE
ON 9/26 INTO 9/28, AND ATLANTIC MINE REPORTED 2.33 INCHES DURING
THIS TIME. PRECIPITATION AMOUNTS WHERE THE SHOWERS WERE LESS INTENSE
SOUTH OF A LINE FROM IRON MOUNTAIN TO ESCANABA WERE GENERALLY UNDER
0.25 INCH.
---------------------------------------------------------------------
  ...JANUARY THROUGH SEPTEMBER CLIMATE STATS FOR UPPER MICHIGAN...

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

                         AVERAGE TEMPERATURE

               OBSERVED NORMAL DEPARTURE    RECORD          RANK
IRON MOUNTAIN    48.0    45.8    +2.2     50.7 /1921/    5TH WARMEST

HOUGHTON         45.7    43.5    +2.2     48.3 /1987/    7TH WARMEST

NEWBERRY         46.5    44.8    +1.7     49.3 /2012/    7TH WARMEST

MARQUETTE NWS    44.8    43.3    +1.5     47.6 /2012/    8TH WARMEST

MANISTIQUE       45.9    44.3    +1.6     48.0 /2012/    9TH WARMEST

MUNISING         45.8    44.6    +1.2     48.2 /2012/   11TH WARMEST

IRONWOOD         45.3    43.5    +1.8     48.9 /1931/   17TH WARMEST

                            PRECIPITATION

               OBSERVED NORMAL DEPARTURE    RECORD          RANK
IRONWOOD        39.37   26.14   +13.23   42.38 /2013/    3RD HIGHEST

MANISTIQUE      28.54   22.62    +5.92   31.15 /1960/    5TH HIGHEST

MARQUETTE NWS   33.47   26.09    +7.38   37.00 /1985/    6TH HIGHEST

MUNISING        33.24   26.73    +6.51   36.52 /1960/    7TH HIGHEST

NEWBERRY        27.48   24.83    +2.65   36.19 /2002/   14TH HIGHEST

MARQUETTE CITY  28.35   21.41    +6.94   34.71 /1881/   12TH HIGHEST

HOUGHTON        30.77   20.78    +9.99   37.86 /1955/   14TH HIGHEST

IRON MOUNTAIN   22.96   23.09    -0.13   16.05 /1933/       ****

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

IRONWOOD...AVERAGE TEMPERATURE 59.2 /3.5 DEGREES ABOVE NORMAL/
           PRECIPITATION 6.54 INCHES /2.48 INCHES ABOVE NORMAL/

WATERSMEET (GOGEBIC COUNTY)...PRECIPITATION 4.86 INCHES

GREENLAND (ONTONAGON COUNTY)...AVERAGE TEMPERATURE 58.5 DEGREES
                               PRECIPITATION 6.95 INCHES

BERGLAND DAM (ONTONAGON COUNTY)...AVERAGE TEMPERATURE 58.6 DEGREES
                                  PRECIPITATION 3.86 INCHES

HOUGHTON COUNTY...AVERAGE TEMPERATURE 60.6 /5.2 DEGREES ABOVE NORMAL/
 AIRPORT          PRECIPITATION 6.48 INCHES /3.03 INCHES ABOVE NORMAL/

ATLANTIC MINE (HOUGHTON COUNTY)...PRECIPITATION 7.34 INCHES

COPPER HARBOR...AVERAGE TEMPERATURE 62.3 DEGREES
                PRECIPITATION 3.31 INCHES

JACOBSVILLE (HOUGHTON COUNTY)...AVERAGE TEMPERATURE 58.4 DEGREES
                                PRECIPITATION 6.06 INCHES

BARAGA...AVERAGE TEMPERATURE 60.8 DEGREES
         PRECIPITATION 4.51 INCHES

HERMAN (BARAGA COUNTY)...AVERAGE TEMPERATURE 56.9 DEGREES
                         PRECIPITATION 5.72 INCHES

CLARKSBURG (MARQUETTE COUNTY)...AVERAGE TEMPERATURE 56.9 DEGREES
                                PRECIPITATION 4.60 INCHES

BIG BAY (MARQUETTE COUNTY)...AVERAGE TEMPERATURE 60.6 DEGREES
                             PRECIPITATION 5.39 INCHES

MARQUETTE CITY...AVERAGE TEMPERATURE 63.0 /3.6 DEGREES ABOVE NORMAL/
                 PRECIPITATION 5.43 INCHES /2.27 INCHES ABOVE NORMAL/

CHATHAM (ALGER COUNTY)...AVERAGE TEMPERATURE 60.8 DEGREES
                         PRECIPITATION 4.78 INCHES

MUNISING...AVERAGE TEMPERATURE 60.7 /3.4 DEGREES ABOVE NORMAL/
           PRECIPITATION 5.21 INCHES /1.14 INCH ABOVE NORMAL/

NEWBERRY...AVERAGE TEMPERATURE 61.6 /4.5 DEGREES ABOVE NORMAL/
           PRECIPITATION 6.57 INCHES /2.76 INCHES ABOVE NORMAL/

STAMBAUGH (IRON COUNTY)...AVERAGE TEMPERATURE 56.9 DEGREES
                          PRECIPITATION 5.05 INCHES

AMASA (IRON COUNTY)...AVERAGE TEMPERATURE 58.8 DEGREES
                      PRECIPITATION 6.49 INCHES

FORD AIRPORT...AVERAGE TEMPERATURE 60.7 DEGREES
 NEAR IRON MOUNTAIN

IRON MOUNTAIN...AVERAGE TEMPERATURE 61.8 /4.2 DEGREES ABOVE NORMAL/
                PRECIPITATION 3.85 INCHES /0.23 INCH ABOVE NORMAL/

NORWAY (DICKINSON COUNTY)...AVERAGE TEMPERATURE 61.4 DEGREES
                            PRECIPITATION 4.41 INCHES

DAGGETT (MENOMINEE COUNTY)...PRECIPITATION 4.31 INCHES

MENOMINEE...PRECIPITATION 4.92 INCHES

ESCANABA...PRECIPITATION 3.81 INCHES

GLADSTONE (DELTA COUNTY)...PRECIPITATION 4.99 INCHES

GARDEN CORNERS (DELTA COUNTY)...AVERAGE TEMPERATURE 60.6 DEGREES
                                PRECIPITATION 4.18 INCHES

COOKS (SCHOOLCRAFT COUNTY)...PRECIPITATION 4.04 INCHES

MANISTIQUE...AVERAGE TEMPERATURE 62.2 /5.2 DEGREES ABOVE NORMAL/
             PRECIPITATION 4.76 INCHES /1.00 INCH ABOVE NORMAL/

                          NOVEMBER FORECAST

THE CLIMATE PREDICTION CENTER (CPC) IS FORECASTING A GREATER THAN
CLIMATOLOGICAL CHANCE OF AN ABOVE NORMAL MONTHLY MEAN TEMPERATURE
BUT EQUAL CHANCES OF ABOVE AND BELOW NORMAL MONTHLY PRECIPITATION
ACROSS ALL OF UPPER MICHIGAN IN NOVEMBER 2016.

                        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.
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 2009 FEATURED
UNSEASONABLY WARM WEATHER AND A MEAN MONTHLY TEMPERATURE 6 TO 9
DEGREES ABOVE AVERAGE...ENOUGH TO QUALIFY THE MONTH AS THE WARMEST
NOVEMBER ON RECORD AT HOUGHTON AND ONE OF THE TOP THREE WARMEST
THROUGHOUT UPPER MICHIGAN. NOVEMBER 1999 IS ALSO AMONG THE TOP FIVE
WARMEST ON RECORD AT MANY 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 IS 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. MORE RECENTLY...NOVEMBER 2015 WAS A TOP TEN
WARMEST ELEVENTH MONTH WITH A MEAN MONTHLY TEMPERATURE RUNNING 4 TO
7 DEGREES ABOVE NORMAL ACROSS UPPER MICHIGAN.

BUT NOVEMBER CAN ALSO FEATURE ALMOST MID WINTER CHILL. NOVEMBER 2014
GOES DOWN IN THE RECORD BOOKS AS ONE OF THE TOP FIVE COLDEST
ELEVENTH MONTHS ON RECORD AT MOST PLACES IN UPPER MICHIGAN. THE MEAN
MONTHLY TEMPERATURE DURING THAT CHILLY NOVEMBER ENDED UP 5 TO 9
DEGREES BELOW NORMAL AND MORE TYPICAL OF DECEMBER DUE TO A
PERSISTENT UPPER TROUGH THAT PREVAILED MUCH OF THE TIME OVER CENTRAL
AND EASTERN NORTH AMERICA AND WHICH ALLOWED A NEARLY CONTINUOUS
INFLUX OF CHILLY CANADIAN AIR INTO THE UPPER LAKES. NOVEMBERS IN
1995...1976...AND 1959 WERE ALSO QUITE CHILLY AND AMONG THE TOP FIVE
COLDEST AT MOST LOCATIONS. 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 BECOMES A GREATER THREAT DURING NOVEMBER AS DEEP
LOW PRESSURE SYSTEMS ENCOUNTER COLDER AIR IN PLACE IN THE UPPER
LAKES. AS THE MORE FREQUENT COLD AIR INVASIONS PASS OVER THE
RELATIVELY WARM WATERS OF LAKE SUPERIOR AND THE ARCTIC AIRMASSES
DESTABILIZE...LAKE EFFECT SNOWS ALSO BECOME MORE LIKELY. THESE SNOW
SHOWERS 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. AVERAGE NOVEMBER SNOW RANGES FROM
NEARLY 24 INCHES AT HOUGHTON AND IRONWOOD TO AROUND 6 INCHES OR LESS
FROM IRON MOUNTAIN TO MANISTIQUE.

DURING THE COLD NOVEMBER IN 2014...AN INTENSE VETERANS DAY LOW
PRESSURE SYSTEM BROUGHT RECORD SNOWFALL TO MANY PLACES IN UPPER
MICHIGAN ON 11/10 INTO 11/12. INCLUDING THE HEAVY LAKE EFFECT SNOWS
THAT FELL ON 11/12 INTO 11/14 IN THE COLD CANADIAN AIRFLOW THAT
FOLLOWED...STORM TOTAL SNOWFALL REACHED AS MUCH AS 36 TO 45 INCHES
OVER THE HIGHER TERRAIN OF THE HURON MOUNTAINS. NORTH WIND GUSTS AS
HIGH AS 45 MPH ALSO CAUSED CONSIDERABLE BLOWING SNOW AND BLIZZARD
CONDITIONS IN EXPOSED AREAS...MAINLY ON 11/11. NEARLY A RECORD 90
INCHES OF SNOW ACCUMULATED DURING THE ENTIRE MONTH OF NOVEMBER 2014
AT SOME PLACES OVER THE HIGHER TERRAIN OF WESTERN UPPER MICHIGAN.

ON THE OTHER HAND...RECORD LOW SNOW FELL IN NOVEMBER 2009. DURING
THAT MONTH...THE COMBINATION OF UNSEASONABLE WARMTH THAT SHUT OFF
THE LAKE EFFECT SNOW MACHINE AND A DRY FLOW THAT PREVENTED LARGER
SCALE STORM SYSTEMS AND PRECIPITATION FROM MOVING INTO THE UPPER
GREAT LAKES RESULTED IN RECORD LOW SNOWFALL UNDER 1 TO 6 INCHES AT
MOST LOCATIONS. ONLY A TRACE OF SNOW FELL AT MUNISING IN NOVEMBER
2009.

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.

                         OUTLOOK FOR WINTER

THE CPC IS FORECASTING A GREATER THAN CLIMATOLOGICAL CHANCE OF A
BELOW NORMAL 3-MONTH AVERAGE TEMPERATURE AND ABOVE NORMAL 3-MONTH
PRECIPITATION OVER ALL OF UPPER MICHIGAN IN DECEMBER 2016 THROUGH
FEBRUARY 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.