Climatological Report (Monthly)
Issued by NWS Marquette, MI

Home | Current Version | Previous Version | Graphics & Text | 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
000
CXUS53 KMQT 011828
CLMMQT

CLIMATE REPORT...PRELIMINARY
NATIONAL WEATHER SERVICE MARQUETTE MI
230 PM EDT TUE OCT 1 2013

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

...THE MARQUETTE MI CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2013...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1961 TO 2013

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   09/06        63      17       84  09/04
LOWEST             35   09/23        44      -9       29  09/27
                        09/22
                        09/16
AVG. MAXIMUM     67.0              65.8     1.2     64.0
AVG. MINIMUM     46.4              45.8     0.6     42.3
MEAN             56.7              55.8     0.9     53.2
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        3
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.60   1968
 MINIMUM         1.21   1989
TOTALS           2.02              3.72   -1.70     4.21
DAILY AVG.       0.07              0.12   -0.05     0.14
DAYS >= .01        15              13.4     1.6       15
DAYS >= .10         7               7.8    -0.8       10
DAYS >= .50         1               2.5    -1.5        3
DAYS >= 1.00        0               0.7    -0.7        1
GREATEST
 24 HR. TOTAL    0.92   09/19 TO 09/20

SNOWFALL (INCHES)
RECORDS
 TOTAL            1.7   1993
TOTALS            0.0               0.1    -0.1      0.0
SINCE 7/1         0.0               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     251               297     -46      361
 SINCE 7/1        465               482     -17      451
COOLING TOTAL      10                21     -11       12
 SINCE 1/1        280               241      39      345
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              MM
HIGHEST WIND SPEED/DIRECTION    MM        DATE   MM
HIGHEST GUST SPEED/DIRECTION    38/225    DATE  09/28

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              2     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       2
LIGHT RAIN               16     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       9     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 2013 MONTHLY CLIMATE SUMMARY FOR UPPER MICHIGAN...
(THIS DISCUSSION DOES NOT INCLUDE CHIPPEWA AND MACKINAC COUNTIES)

...GENERALLY DRY ESPECIALLY OVER THE WEST...
...DRIEST SEPTEMBER AT ONTONAGON..
...EIGHTH DRIEST SEPTEMBER AT HOUGHTON...

...WARM WEST TO COOLER EAST...
...SEVENTH WARMEST SEPTEMBER AT ONTONAGON...

SEPTEMBER CLIMATE STATISTICS FOR THE MARQUETTE NWS IN NEGAUNEE TOWNSHIP

                                    NORMAL   DEPARTURE
AVERAGE TEMPERATURE         56.7     55.8   PLUS    0.9
AVERAGE HIGH TEMPERATURE    67.0     65.8   PLUS    1.2
AVERAGE LOW TEMPERATURE     46.4     45.8   PLUS    0.6
HEATING DEGREE DAYS          251      297  MINUS     46
COOLING DEGREE DAYS           10       21  MINUS     11
TOTAL PRECIPITATION         2.02     3.72  MINUS   1.70
TOTAL SNOWFALL                 0        0             0

HIGHEST TEMPERATURE:                    80 ON 9/6
LOWEST TEMPERATURE:                     35 ON 9/22 AND 9/23
GREATEST CALENDAR DAY PRECIPITATION:  0.91 ON 9/19
GREATEST 24 HOUR PRECIPITATION:       0.92 ON 9/19-9/20
GREATEST CALENDAR DAY SNOWFALL:          0
GREATEST 24 HOUR SNOWFALL:               0
PEAK WIND SPEED: 38 MPH FROM THE SOUTHWEST ON 9/28

NO NEW DAILY OR MONTHLY RECORDS ESTABLISHED IN SEPTEMBER 2013
---------------------------------------------------------------------
GREAT LAKES WATER LEVELS (FEET/METERS ABOVE MEAN SEA LEVEL)

                            LAKE SUPERIOR  LAKE MICHIGAN-HURON
9/01/13 DAILY MEAN          601.95/183.48     577.72/176.09
9/29/13 DAILY MEAN          601.93/183.47     577.46/176.01
AVG AUG 2013 DAILY MEAN     601.85/183.44     577.68/176.08
AVG SEP 2012 DAILY MEAN     601.06/183.20     576.97/175.86
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 FALL SLOWLY IN SEPTEMBER...

AFTER A SIGNIFICANT RISE DURING SPRING AND EARLY SUMMER...THE WATER
LEVEL ON LAKES MICHIGAN/HURON FELL SLOWLY IN SEPTEMBER...ABOUT 3
INCHES TO AROUND 19 INCHES BELOW THE NORMAL LEVEL ON 9/30...DUE TO
INCREASED EVAPORATION AND LOWER PRECIPITATION IN LATE SUMMER. BUT
EVEN WITH THIS SLOW DECLINE...THE WATER LEVEL ON THESE LAKES AT THE
END OF SEPTEMBER IS STILL ABOUT 6 INCHES HIGHER THAN LAST YEAR AT
THIS SAME TIME. WATER LEVELS ON LAKE SUPERIOR REMAINED NEARLY
STEADY...HOLDING ABOUT 2 TO 3 INCHES BELOW THE LONG TERM AVERAGE
THROUGH THE MONTH.

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 (ALL LOWER CASE).
---------------------------------------------------------------------
                      SEPTEMBER CLIMATE HIGHLIGHTS

HIGHEST REPORTED TEMPERATURE...88 AT ESCANABA ON 9/10

LOWEST REPORTED TEMPERATURE...25 AT KENTON IN FAR SOUTHERN HOUGHTON
                               COUNTY ON 9/16

HIGHEST AVERAGE TEMPERATURE...61.0 DEGREES AT ONTONAGON

LOWEST AVERAGE TEMPERATURE...53.9 DEGREES AT STAMBAUGH IN IRON COUNTY

HIGHEST MONTHLY PRECIPITATION...5.10 INCHES AT COOKS IN SCHOOLCRAFT
                                 COUNTY

LOWEST MONTHLY PRECIPITATION...0.39 INCH AT A SPOT NEAR ONTONAGON

MORE TO COME LATER.
---------------------------------------------------------------------
SOME OTHER TEMPERATURE AND PRECIPITATION OBSERVATIONS ACROSS UPPER
MICHIGAN IN SEPTEMBER 2013 INCLUDE:

IRONWOOD...AVERAGE TEMPERATURE 57.2 (1.5 DEGREES ABOVE NORMAL)
           PRECIPITATION 1.80 INCHES (2.26 INCHES BELOW NORMAL)

ONTONAGON...AVERAGE TEMPERATURE 61.0 (2.5 DEGREES ABOVE NORMAL)
 (6 MILES   PRECIPITATION 0.39 INCH (2.89 INCHES BELOW NORMAL)
  INLAND)

GREENLAND (ONTONAGON COUNTY)...AVERAGE TEMPERATURE 56.6 DEGREES
                               PRECIPITATION 0.73 INCH

BERGLAND DAM (ONTONAGON COUNTY)...AVERAGE TEMPERATURE 55.9 DEGREES
                                  PRECIPITATION 1.24 INCHES

HOUGHTON COUNTY...AVERAGE TEMPERATURE 56.8 (1.4 DEGREES ABOVE NORMAL)
 AIRPORT          PRECIPITATION 1.25 INCHES (2.20 INCHES BELOW NORMAL)

ATLANTIC MINE (HOUGHTON COUNTY)...PRECIPITATION 1.21 INCHES

MOHAWK (KEWEENAW COUNTY)...PRECIPITATION 4.61 INCHES

COPPER HARBOR...AVERAGE TEMPERATURE 58.0 DEGREES
                PRECIPITATION 2.12 INCHES

JACOBSVILLE (HOUGHTON COUNTY)...AVERAGE TEMPERATURE 55.0 DEGREES
                                PRECIPITATION 0.95 INCH

BARAGA...AVERAGE TEMPERATURE 58.4 DEGREES
         PRECIPITATION 0.44 INCH

WATTON (BARAGA COUNTY)...AVERAGE TEMPERATURE 54.9 DEGREES
                         PRECIPITATION 0.75 INCH

HERMAN (BARAGA COUNTY)...PRECIPITATION 1.77 INCHES

CLARKSBURG (MARQUETTE COUNTY)...AVERAGE TEMPERATURE 54.4 DEGREES
                                PRECIPITATION 1.45 INCHES

MARQUETTE CITY...AVERAGE TEMPERATURE 59.8 (0.4 DEGREE ABOVE NORMAL)
                 PRECIPITATION 2.56 INCHES (0.60 INCH BELOW NORMAL)

GWINN (MARQUETTE COUNTY)...PRECIPITATION 2.88 INCHES

CHATHAM (ALGER COUNTY)...AVERAGE TEMPERATURE 56.7 DEGREES
                         PRECIPITATION 2.71 INCHES

MUNISING...AVERAGE TEMPERATURE 56.3 (1.0 DEGREE BELOW NORMAL)
           PRECIPITATION 3.04 INCHES (1.03 INCH BELOW NORMAL)

WETMORE (ALGER COUNTY)...PRECIPITATION 3.68 INCHES
(15 MILES SOUTH)

NEWBERRY...AVERAGE TEMPERATURE 56.8 (0.3 DEGREE BELOW NORMAL)
           PRECIPITATION 2.63 INCHES (1.18 INCHES BELOW NORMAL)

STAMBAUGH (IRON COUNTY)...AVERAGE TEMPERATURE 53.9 DEGREES
                          PRECIPITATION 2.08 INCHES

AMASA (IRON COUNTY)...PRECIPITATION 1.49 INCHES

NORWAY (DICKINSON COUNTY)...AVERAGE TEMPERATURE 58.3 DEGREES
                            PRECIPITATION 1.36 INCHES

DAGGETT (MENOMINEE COUNTY)...PRECIPITATION 2.20 INCHES

MENOMINEE...PRECIPITATION 1.40 INCHES

GLADSTONE (DELTA COUNTY)...PRECIPITATION 1.81 INCHES

GARDEN CORNERS (DELTA COUNTY)...AVERAGE TEMPERATURE 55.9 DEGREES
                                PRECIPITATION 4.49 INCHES

COOKS (SCHOOLCRAFT COUNTY)...PRECIPITATION 5.10 INCHES

MANISTIQUE...AVERAGE TEMPERATURE 56.0 (1.0 DEGREE BELOW NORMAL)
             PRECIPITATION 3.07 INCHES (0.69 INCH BELOW NORMAL)

                     SEPTEMBER WEATHER SUMMARY

MORE TO COME LATER.

                          OCTOBER 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 OVER
ALL OF UPPER MICHIGAN IN OCTOBER 2013.

                        OCTOBER CLIMATOLOGY

AVERAGE TEMPERATURES IN OCTOBER CONTINUE THEIR DOWNWARD SPIRAL AS
THE SUN STAYS UP LESS AND LESS EACH DAY. THE OCTOBER MEAN
TEMPERATURE ACROSS UPPER MICHIGAN IS ABOUT TEN DEGREES LOWER THAN IN
SEPTEMBER AT MOST PLACES. POSSIBLE DAILY SUNSHINE DECREASES ABOUT 3
OR 4 MINUTES EVERY DAY DURING THE TENTH MONTH FROM 703 MINUTES ON
10/1 TO 607 MINUTES ON HALLOWEEN.

ALTHOUGH AVERAGE TEMPERATURES DECREASE DURING OCTOBER...RECORD HIGH
TEMPERATURES AT MANY PLACES IN UPPER MICHIGAN ARE STILL IN THE 80S
DURING THE FIRST WEEK OF THE MONTH. IN FACT...RESIDENTS OF IRON
MOUNTAIN BASKED IN A SUMMER-LIKE HIGH OF 88 ON 10/3/92. DOWNTOWN
MARQUETTE ENJOYED A TASTE OF SUMMER EVEN AS LATE AS 10/18 IN 1950...
WHEN THE MERCURY REACHED A BALMY 86 DEGREES.

BUT BY THE END OF OCTOBER...THE ICY HAND OF WINTER USUALLY BEGINS TO
GRIP UPPER MICHIGAN HARDER AND HARDER. RECORD LOW TEMPERATURES AT
MONTHS END FALL INTO THE TEENS EVERYWHERE AND EVEN AS LOW AS THE
SINGLE NUMBERS ABOVE ZERO AWAY FROM THE WARMING INFLUENCE OF LAKE
SUPERIOR. ON 10/30/1925...IRONWOOD RECORDED A LOW OF 2 DEGREES ABOVE
ZERO. OCTOBER 2002 WAS THE COLDEST OCTOBER ON RECORD AT THE
MARQUETTE NWS...AND AMONG THE TOP TEN COLDEST AT IRONWOOD AND IRON
MOUNTAIN. MONTHLY TEMPERATURES AVERAGED 4 TO 6 DEGREES BELOW NORMAL
ACROSS UPPER MICHIGAN. OCTOBER 2009 WAS ALSO QUITE CHILLY WITH AN
AVERAGE MONTHLY TEMPERATURE 3 TO 5 DEGREES BELOW THE MEAN. MUNISING
REPORTED THE COLDEST OCTOBER ON RECORD IN 2009...AND MANY PLACES
EXPERIENCED A TOP FIVE OR TEN COLDEST TENTH MONTH.

EVEN THOUGH AVERAGE PRECIPITATION IN OCTOBER IS LOWER THAN IN
SEPTEMBER AT MOST SPOTS...THE RESIDUAL WARMTH OF LAKE SUPERIOR
USUALLY CAUSES INCREASED LAKE EFFECT RAIN AND SNOW SHOWER ACTIVITY
DURING THE TENTH MONTH. MORE NUMEROUS ARCTIC AIR MASSES PLUNGING
SOUTH FROM CANADA ARE DESTABILIZED AS THEY CROSS THE RELATIVELY WARM
WATER...RESULTING IN THE INCREASED CONVECTIVE ACTIVITY. IF THE AIR
IS COLD ENOUGH...HEAVY SNOW CAN FALL...ESPECIALLY OVER HIGHER
TERRAIN JUST DOWNWIND OF LAKE SUPERIOR. BETWEEN 10/11 AND 10/14 IN
2006...AN UNUSUALLY EARLY WINTER STORM BLASTED THE HIGHER TERRAIN OF
THE WEST HALF OF UPPER MICHIGAN WITH 20 OR MORE INCHES OF SNOW...
INCLUDING AS MUCH AS 26.6 INCHES AT TWIN LAKES IN HOUGHTON COUNTY.
IN OCTOBER 1967...ALMOST 27 INCHES OF SNOW WHITENED IRONWOOD...
INCLUDING 15 INCHES ON 10/25/67. HEAVY SNOW CAN FALL EVEN EARLIER IN
THE MONTH. ON 10/6 TO 10/8 IN 2000...UP TO A FOOT OF SNOW SMOTHERED
THE HIGHER TERRAIN OF NORTH CENTRAL UPPER MICHIGAN. BUT DURING WARM
OCTOBERS...LITTLE OR NO SNOW CAN FALL AS WELL. THE MARQUETTE NWS SAW
NO SNOW AT ALL IN OCTOBER 1971...AS DID THE HOUGHTON COUNTY AIRPORT
IN 1986.

THE SAME SURFACE HEATING AND DESTABILIZATION OF COLD AIRMASSES THAT
CAUSES LAKE EFFECT SNOW ALSO RESULTS IN INCREASED WINDINESS OVER
LAKE SUPERIOR. THE GALES OF NOVEMBER OFTEN DO COME EARLY DURING
OCTOBER.

                  OUTLOOK FOR LATE FALL INTO WINTER

THE CLIMATE PREDICTION CENTER (CPC) IS FORECASTING EQUAL CHANCES OF
AN ABOVE AND BELOW NORMAL 3-MONTH MEAN TEMPERATURE AND 3-MONTH
PRECIPITATION OVER ALL OF UPPER MICHIGAN DURING NOVEMBER 2013
THROUGH JANUARY 2014.

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.

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.