Climatological Report (Monthly)
Issued by NWS Marquette, MI

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474
CXUS53 KMQT 292017 AAB
CLMMQT

CLIMATE REPORT
NATIONAL WEATHER SERVICE MARQUETTE MI
417 PM EDT THU JUN 29 2017

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

...THE MARQUETTE MI CLIMATE SUMMARY FOR THE MONTH OF MAY 2017...

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              95   05/28/1969
 LOW               17   05/09/1983
HIGHEST            75   05/27        62      13       86  05/06
LOWEST             23   05/08        39     -16       28  05/17
                                                          05/09
AVG. MAXIMUM     56.6              61.8    -5.2     63.4
AVG. MINIMUM     37.5              39.9    -2.4     40.2
MEAN             47.1              50.9    -3.8     51.8
DAYS MAX >= 90      0               0.1    -0.1        0
DAYS MAX <= 32      0               0.1    -0.1        0
DAYS MIN <= 32      9               6.8     2.2        9
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.91   1973
 MINIMUM         0.06   1986
TOTALS           3.02              3.05   -0.03     4.42
DAILY AVG.       0.10              0.10    0.00     0.14
DAYS >= .01        17              11.5     5.5       12
DAYS >= .10        10               6.4     3.6        6
DAYS >= .50         1               1.6    -0.6        3
DAYS >= 1.00        0               0.6    -0.6        2
GREATEST
 24 HR. TOTAL    1.04   05/17 TO 05/18

SNOWFALL (INCHES)
RECORDS
 TOTAL           22.6   1990
TOTALS            0.9               1.5    -0.6      1.1
SINCE 7/1       154.0             203.3   -49.3    160.9
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         0               0.3    -0.3        1
GREATEST
 SNOW DEPTH         T   05/02                          1  05/14
 24 HR TOTAL      0.9   05/02 TO 05/02

DEGREE_DAYS
HEATING TOTAL     549               450      99      414
 SINCE 7/1       8233              9152    -919     8204
COOLING TOTAL       0                11     -11       11
 SINCE 1/1          0                12     -12       11
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              MM
HIGHEST WIND SPEED/DIRECTION    MM        DATE   MM
HIGHEST GUST SPEED/DIRECTION    36/225    DATE  05/17

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                       1
LIGHT RAIN               19     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                2     SLEET                      0
FOG                       6     FOG W/VIS <= 1/4 MILE      2
HAZE                      0

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

&&

...MAY 2017 MONTHLY CLIMATE SUMMARY FOR UPPER MICHIGAN...
/THIS DISCUSSION DOES NOT INCLUDE CHIPPEWA AND MACKINAC COUNTIES/

...VERY COOL...

...NEAR TO ABOVE NORMAL PRECIPITATION...
...SEVENTH HIGHEST MAY PRECIPITATION AT IRON MOUNTAIN...

MAY CLIMATE STATISTICS FOR THE MARQUETTE NWS IN NEGAUNEE TOWNSHIP

                                    NORMAL   DEPARTURE
AVERAGE TEMPERATURE         47.1     50.9  MINUS    3.8
AVERAGE HIGH TEMPERATURE    56.6     61.8  MINUS    5.2
AVERAGE LOW TEMPERATURE     37.5     39.9  MINUS    2.4
HEATING DEGREE DAYS          549      450   PLUS     99
COOLING DEGREE DAYS            0       11  MINUS     11
TOTAL PRECIPITATION         3.02     3.05  MINUS   0.03
TOTAL SNOWFALL               0.9      1.5  MINUS    0.6

HIGHEST TEMPERATURE:                    75 ON 5/27
LOWEST TEMPERATURE:                     23 ON 5/8
GREATEST CALENDAR DAY PRECIPITATION:  0.84 ON 5/17
GREATEST 24 HOUR PRECIPITATION:       1.04 ON 5/17-5/18
GREATEST 24 HOUR SNOWFALL:             0.9 ON 5/2
PEAK WIND SPEED: 36 MPH FROM THE SOUTHWEST ON 5/17

DAILY RECORD PRECIPITATION ON 5/17...0.84 (OLD RECORD 0.79...1999)
---------------------------------------------------------------------
        ...SPRING 2017 CLIMATE STATS FOR THE MARQUETTE NWS...

                 ...WET BUT BELOW NORMAL SNOWFALL...

                    MARCH-MAY AVERAGE TEMPERATURE

              OBSERVED NORMAL DEPARTURE     RECORD          RANK
MARQUETTE NWS   37.0    37.7    -0.7      32.5 /1996/       ****

                       MARCH-MAY PRECIPITATION

              OBSERVED NORMAL DEPARTURE     RECORD          RANK
MARQUETTE NWS  10.26    9.09    +1.17    15.43 /1973/   16TH HIGHEST

                         MARCH-MAY SNOWFALL

              OBSERVED NORMAL DEPARTURE     RECORD          RANK
MARQUETTE NWS   32.9    50.9    -18.0     8.7 /1968/    24TH LOWEST

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

                             LAKE SUPERIOR  LAKE MICHIGAN-HURON
05/01/17 DAILY MEAN          602.06/183.51     579.86/176.74
05/30/17 DAILY MEAN          602.42/183.62     580.22/176.85
AVG APR 2017 DAILY MEAN      601.74/183.41     579.60/176.66
AVG MAY 2016 DAILY MEAN      602.05/183.51     580.11/176.82
LONG TERM MAY DAILY MEAN     601.57/183.36     579.00/176.48
MAXIMUM MAY DAILY MEAN       602.82/183.74     581.63/177.28
                                 (1986)           (1986)
MINIMUM MAY DAILY MEAN       599.61/182.76     576.57/175.74
                                 (1926)           (1964)

...WATER LEVELS RISE TO WELL ABOVE NORMAL IN MAY...

RUNOFF FROM MODERATE TO HEAVY PRECIPITATION DURING APRIL AND MAY
CONTRIBUTED TO RISING WATERS LEVELS IN MAY. AT THE END OF MAY, WATER
LEVELS ON LAKE SUPERIOR WERE 10 TO 11 INCHES ABOVE NORMAL AND 4 TO 5
INCHES HIGHER THAN OBSERVED IN MAY 2016. THE LEVEL ON LAKES MICHIGAN
AND HURON ENDED UP 14 TO 15 INCHES ABOVE NORMAL AND ALSO 1 TO 2
INCHES HIGHER THAN THE LEVEL OBSERVED IN MAY 2016.

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.
---------------------------------------------------------------------
                       MAY CLIMATE HIGHLIGHTS

HIGHEST REPORTED TEMPERATURE...81 AT RANDVILLE IN DICKINSON COUNTY
                                ON 5/27

LOWEST REPORTED TEMPERATURE...12 NEAR COVINGTON IN BARAGA COUNTY
                               ON 5/8

HIGHEST AVERAGE TEMPERATURE...51.6 DEGREES AT IRON MOUNTAIN


LOWEST AVERAGE TEMPERATURE...44.5 DEGREES AT JACOBSVILLE IN
                              HOUGHTON COUNTY

HIGHEST MONTHLY PRECIPITATION...6.71 INCHES AT WATERSMEET IN
                                 GOGEBIC COUNTY

LOWEST MONTHLY PRECIPITATION...2.63 INCHES AT MANISTIQUE

HIGHEST MONTHLY SNOWFALL...2.1 INCHES AT BERGLAND DAM IN ONTONAGON
                            COUNTY

ALTHOUGH THERE WAS GENERALLY DRY WEATHER FROM 5/3 TO 5/15, AN ACTIVE
WEATHER PATTERN PREVAILED MUCH OF THE REST OF MAY 2017 ACROSS THE
UPPER GREAT LAKES. MONTHLY PRECIPITATION ENDED UP FROM WELL ABOVE
NORMAL OVER PORTIONS OF THE SOUTHWEST HALF OF UPPER MICHIGAN TO
CLOSER TO NORMAL AT MOST PLACES OVER THE NORTHEAST HALF. OVER 5
INCHES OF RAIN FELL AT SOME LOCATIONS FROM IRONWOOD AND ONTONAGON TO
IRON MOUNTAIN, INCLUDING THE MONTHLY MAXIMUM OF 6.71 INCHES AT
WATERSMEET, TOTALS AROUND 200 PERCENT OF THE MAY AVERAGES. IRON
MOUNTAIN MEASURED THE SEVENTH HIGHEST MAY PRECIPITATION ON RECORD AT
THAT SIGHT WITH 5.90 INCHES. THERE WAS LESS PRECIPITATION OVER THE
EAST, WHERE ONLY 2.63 INCHES AND 2.75 INCHES FELL AT MANISTIQUE AND
NEWBERRY RESPECTIVELY. THESE TOTALS ARE CLOSE TO THE MAY NORMALS FOR
THOSE LOCATIONS.

SINCE THE UPPER AIR PATTERN FEATURED A TROUGH IN CENTRAL NORTH
AMERICA MUCH OF THE TIME IN MAY, THERE WAS A NEAR ABSENCE OF VERY
WARM WEATHER, AND THE MONTH ENDED UP COOLER THAN NORMAL. MEAN
MONTHLY TEMPERATURES RANGING FROM AROUND 45 DEGREES CLOSE TO THE
COOLING INFLUENCE OF LAKE SUPERIOR TO NEAR 52 DEGREES AT IRON
MOUNTAIN ARE ABOUT 2 TO 4 DEGREES BELOW THE MONTHLY AVERAGES AND 6
TO 9 DEGREES HIGHER THAN THE APRIL MEAN TEMPERATURES.

MAY BEGAN ON A CHILLY, WET NOTE AS A DEEP LOW PRESSURE SYSTEM OVER
THE PLAINS MOVED NORTHEAST INTO THE GREAT LAKES. RAIN AHEAD OF THIS
LOW OVERSPREAD THE AREA DURING THE NIGHT ON 4/30-5/1. MAXIMUM
TEMPERATURES HELD IN THE 30S OVER THE COLDER SPOTS ACROSS NORTHWEST
UPPER MICHIGAN. AS THE LOW SHIFTED TO THE NORTH, NORTHWEST WINDS
GUSTING AS HIGH AS 35 TO 40 MPH IN ITS WAKE DREW EVEN COLDER AIR
INTO THE UPPER LAKES TO CHANGE THE PRECIPITATION TO SNOW OVER THE
HIGHER TERRAIN OF THE NORTHWEST HALF DURING THE EARLY MORNING HOURS
ON 5/2. BY THE TIME THE PRECIPITATION DIMINISHED DURING THE
AFTERNOON ON 5/2, 0.25 TO 0.75 INCH OF WATER EQUIVALENT
PRECIPITATION HAD FALLEN OVER MOST OF THE U.P. IRONWOOD LED
REPORTING STATIONS WITH A TOTAL OF 1.58 INCHES. BERGLAND DAM IN
ONTONAGON COUNTY, ATLANTIC MINE IN HOUGHTON COUNTY AND HERMAN IN
BARAGA COUNTY ALL REPORTED 2 INCHES OF WET SNOW.

THE LOWEST MAY MINIMUM TEMPERATURES IN THE TEENS OCCURRED ON 5/8 AND
5/9 AS HIGH PRESSURE STRETCHING FROM HUDSON BAY INTO THE UPPER GREAT
LAKES BROUGHT MOSTLY CLEAR SKIES AND LIGHT WINDS DURING THE EARLY
MORNING HOURS. A LOCATION NEAR COVINGTON IN BARAGA COUNTY REPORTED
THE MONTHLY LOW OF 12 ON 5/8. A SPOT IN ALGER COUNTY JUST INLAND
FROM MUNISING SAW THE MERCURY DIP TO 13 ON 5/9.

A VERY ACTIVE WEATHER PATTERN PREVAILED ACROSS THE WESTERN GREAT
LAKES ON 5/15 THROUGH 5/18 AS DISTURBANCES EMBEDDED IN A SOUTHWEST
FLOW ALOFT BETWEEN A DEEP TROUGH OVER THE WESTERN STATES AND A RIDGE
ACROSS THE EAST MOVED OVER A SLOW MOVING FRONTAL BOUNDARY. THESE
DISTURBANCES INTERACTED WITH THE WARM AND MOIST AIRMASS ON THE WARM
SIDE OF THE FRONT TO CAUSE EPISODES OF SHOWERS AND SOME
THUNDERSTORMS. THERE WERE INSTANCES OF VERY HEAVY RAIN, ESPECIALLY
DURING THE NIGHT ON 5/17-5/18, WHEN SOME MINOR FLOODING OCCURRED AT
SOME LOCATIONS OVER THE WEST AND SOUTH CENTRAL. AS MUCH AS 3.45
INCHES AND 2.47 INCHES OF RAIN FELL AT WATERSMEET IN GOGEBIC COUNTY
AND PAULDING IN ONTONAGON COUNTY RESPECTIVELY ON 5/17 THROUGH
DAYBREAK ON 5/18. THE STRONGEST THUNDERSTORM ALSO DROPPED NICKEL-
SIZED HAIL NEAR ESCANABA. ON 5/18, GUSTY NORTH WINDS TO 35 TO 45 MPH
FOLLOWING THE LOW PRESSURE SYSTEM ASSOCIATED WITH THE LAST OF THE
DISTURBANCES BLEW COLDER AIR INTO UPPER MICHIGAN, CAUSING THE RAIN
TO MIX WITH SNOW OVER THE HIGHER TERRAIN OF THE NORTHWEST HALF
BEFORE THE PRECIPITATION ENDED BY LATE IN THE DAY. THE RAINFALL
TOTAL FROM 5/15 THROUGH 5/18 EXCEEDED AN INCH AT MOST PLACES AND WAS
AS MUCH AS 5.03 INCHES AT WATERSMEET. IN GENERAL, THE HEAVIEST RAINS
FELL OVER THE WESTERN U.P. AND THE LEAST OVER THE SOUTHEAST, WHERE
MENOMINEE AND MANISTIQUE PICKED UP ONLY A LITTLE OVER 0.50 INCH
DURING THESE 3 TO 4 DAYS.

A DEEP LOW PRESSURE SYSTEM MOVING FROM THE CENTRAL PLAINS ON 5/20
AND INTO THE WESTERN GREAT LAKES ON 5/21 AND 5/22 BROUGHT A PERIOD
OF SHOWERS TO THE U.P.  THERE WAS A WIDESPREAD 0.25 TO 0.75 INCH OF
RAIN OVER THE AREA FROM LATE ON 5/20 INTO 5/22, BUT AS MUCH AS 0.91
INCH AND 0.88 INCH FELL AT MENOMINEE AND GLADSTONE IN DELTA COUNTY
RESPECTIVELY.

NUMEROUS DISTURBANCES ROTATING AROUND A CLOSED UPPER LOW MOVING FROM
SOUTH CENTRAL CANADA ON 5/26 TO NEAR LAKE SUPERIOR ON 5/30 BROUGHT
PERIODS OF SHOWERS AND A FEW THUNDERSTORMS TO UPPER MICHIGAN BETWEEN
5/26 AND 5/31, INCLUDING THE MEMORIAL DAY WEEKEND. MOST PLACES
PICKED UP 0.50 TO 1.00 INCH OF RAIN DURING THIS TIME, BUT AN INCH OR
MORE OF PRECIPITATION FELL AT SOME LOCATIONS. CHATHAM IN ALGER
COUNTY SAW THE MOST WITH 1.48 INCHES. MARQUETTE CITY AND MUNISING
WERE CLOSE BEHIND WITH 1.29 INCHES AND 1.28 INCHES RESPECTIVELY.
COPPER HARBOR SAW THE LEAST WITH ONLY 0.26 INCH. THE ONLY DAY THE
THERMOMETER ROSE TO 80 OR ABOVE IN MAY OCCURRED IN THE SOUTHWEST
FLOW AHEAD OF THE APPROACHING UPPER LOW AND A COLD FRONT ON 5/27.
RANDVILLE IN DICKINSON COUNTY REPORTED THE MONTHLY MAXIMUM OF 81 ON
5/27, THE ONLY DAY IN MAY ANY PLACE IN UPPER MICHIGAN SAW A MAXIMUM
OF 80 OR HIGHER.
---------------------------------------------------------------------
SOME OTHER TEMPERATURE AND PRECIPITATION OBSERVATIONS ACROSS UPPER
MICHIGAN IN MAY 2017 INCLUDE:

IRONWOOD...AVERAGE TEMPERATURE 48.1 (3.8 DEGREES BELOW NORMAL)
           PRECIPITATION 5.88 INCHES (2.75 INCHES ABOVE NORMAL)
           SNOWFALL 1.0 INCH (0.9 INCH BELOW NORMAL)

WATERSMEET (GOGEBIC COUNTY)...PRECIPITATION 6.71 INCHES
                              SNOWFALL TRACE

GREENLAND (ONTONAGON COUNTY)...PRECIPITATION 4.52 INCHES
                               SNOWFALL TRACE

BERGLAND DAM (ONTONAGON COUNTY)...AVERAGE TEMPERATURE 48.6 DEGREES
                                  PRECIPITATION 5.02 INCHES
                                  SNOWFALL 2.1 INCHES

HOUGHTON COUNTY...AVERAGE TEMPERATURE 47.5 (2.7 DEGREES BELOW
NORMAL) AIRPORT           PRECIPITATION 3.54 INCHES (1.04 INCHES
ABOVE NORMAL)                   SNOWFALL 0.5 INCH (0.5 INCH BELOW
NORMAL)

ATLANTIC MINE (HOUGHTON COUNTY)...PRECIPITATION 4.55 INCHES
                        SNOWFALL 2.0 INCHES

COPPER HARBOR...AVERAGE TEMPERATURE 46.2 DEGREES
PRECIPITATION 4.76 INCHES

JACOBSVILLE (HOUGHTON COUNTY)...AVERAGE TEMPERATURE 44.5 DEGREES
                            PRECIPITATION 3.70 INCHES
                 SNOWFALL TRACE

BARAGA...AVERAGE TEMPERATURE 48.2 DEGREES         PRECIPITATION 3.81
INCHES         SNOWFALL 0.0 INCH

CLARKSBURG (MARQUETTE COUNTY)...AVERAGE TEMPERATURE 46.2 DEGREES
                           PRECIPITATION 2.82 INCHES
               SNOWFALL TRACE

BIG BAY (MARQUETTE COUNTY)...AVERAGE TEMPERATURE 46.4 DEGREES
                     PRECIPITATION 3.81 INCHES
      SNOWFALL 0.1 INCH

MARQUETTE CITY...AVERAGE TEMPERATURE 46.5 (4.5 DEGREES BELOW NORMAL)
                 PRECIPITATION 3.92 INCHES (1.39 INCHES ABOVE
NORMAL)                 SNOWFALL 0.0 INCH (0.6 INCH BELOW NORMAL)

CHATHAM (ALGER COUNTY)...AVERAGE TEMPERATURE 48.3 DEGREES
             PRECIPITATION 4.99 INCHES
SNOWFALL 0.0 INCH

MUNISING...AVERAGE TEMPERATURE 47.2 (2.8 DEGREES BELOW NORMAL)
    PRECIPITATION 4.24 INCHES (1.26 INCHES ABOVE NORMAL)
SNOWFALL 0.0 INCH (0.3 INCH BELOW NORMAL)

NEWBERRY...AVERAGE TEMPERATURE 48.7 (2.9 DEGREES BELOW NORMAL)
     PRECIPITATION 2.75 INCHES (0.14 INCH ABOVE NORMAL)
SNOWFALL 0.0 INCH (0.1 INCH BELOW NORMAL)

STAMBAUGH (IRON COUNTY)...AVERAGE TEMPERATURE 48.5 DEGREES
                         PRECIPITATION 3.79 INCHES

                          SNOWFALL 0.0 INCH AMASA (IRON
COUNTY)...AVERAGE TEMPERATURE 49.0 DEGREES
PRECIPITATION 4.06 INCHES                      SNOWFALL 0.0 INCH

FORD AIRPORT...AVERAGE TEMPERATURE 51.0 DEGREES NEAR IRON MOUNTAIN

IRON MOUNTAIN...AVERAGE TEMPERATURE 51.6 (2.1 DEGREES BELOW NORMAL)
               PRECIPITATION 5.90 INCHES (2.86 INCHES ABOVE NORMAL)
              SNOWFALL 0.0 INCH (0.7 INCH BELOW NORMAL)

NORWAY (DICKINSON COUNTY)...PRECIPITATION 4.54 INCHES

DAGGETT (MENOMINEE COUNTY)...PRECIPITATION 4.50 INCHES

MENOMINEE...PRECIPITATION 2.95 INCHES

ESCANABA...PRECIPITATION 4.16 INCHES           SNOWFALL 0.0 INCH

GLADSTONE (DELTA COUNTY)...PRECIPITATION 4.11 INCHES
          SNOWFALL 0.0 INCH

GARDEN CORNERS (DELTA COUNTY)...AVERAGE TEMPERATURE 49.6 DEGREES
                               PRECIPITATION 3.13 INCHES

                                SNOWFALL 0.0 INCH

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

MANISTIQUE...AVERAGE TEMPERATURE 47.2 (2.1 DEGREES BELOW NORMAL)
           PRECIPITATION 2.63 INCHES (0.10 INCH BELOW NORMAL)
          SNOWFALL 0.0 INCH (NORMAL)
---------------------------------------------------------------------
                            JULY 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 JULY 2017.

                          JULY CLIMATOLOGY

ALTHOUGH DAYLIGHT BEGINS TO GROW SHORTER DURING JULY (946 MINUTES OF
POSSIBLE SUNSHINE ON 7/1 DECREASES TO 894 MINUTES ON 7/31) AS THE
SUN STARTS ITS ANNUAL MIGRATION SOUTHWARD...AVERAGE MONTHLY
TEMPERATURES PEAK DURING THE SEVENTH MONTH...ABOUT 5 DEGREES HIGHER
THAN IN JUNE. TEMPERATURES OVER 100 ARE RARE IN UPPER MICHIGAN...BUT
THEY ARE MOST LIKELY IN JULY. THE MOST EXTREME HEATWAVE IN UPPER
MICHIGAN HISTORY OCCURRED DURING THE SECOND WEEK OF JULY 1936.
RESIDENTS OF NEWBERRY ENDURED SIX DAYS IN A ROW FROM 7/8/36 TO
7/13/36 WHERE THE HIGH TEMPERATURE REACHED 100 OR ABOVE...INCLUDING
AN ALL TIME RECORD 103 DEGREE READING ON 7/13/36. IN FACT...THE
SEVEN HOTTEST DAYS IN NEWBERRY HISTORY OCCURRED DURING THE WEEK OF
7/8/36 TO 7/14/36. IRONWOOD AND IRON MOUNTAIN ALSO RECORDED THEIR
ALL TIME HIGHEST TEMPERATURE ON 7/13/36 WITH MAXIMUM TEMPERATURES OF
104 AND 103 RESPECTIVELY. EVEN THOUGH THE 104 READING IN DOWNTOWN
MARQUETTE ON 7/13/36 IS NOT THE HIGHEST TEMPERATURE EVER OBSERVED
THERE...WHICH IS 108 ON 7/15/1901...THAT FACT PROBABLY WAS OF LITTLE
COMFORT TO LOCAL RESIDENTS...WHO ALSO SUFFERED THROUGH SWELTERING
LOW TEMPERATURES OF 80 ON 7/8/36 AND 7/9/36.

IN RECENT MEMORY...JULY IN 2006 AND 2011 WERE QUITE WARM OVER UPPER
MICHIGAN WITH MONTHLY MEAN TEMPERATURES AVERAGING 2 TO 5 DEGREES
ABOVE THE 30-YEAR NORMAL. THOUSAND ISLAND LAKE IN GOGEBIC COUNTY
REPORTED A MAXIMUM TEMPERATURE OF 100 OR BETTER ON FOUR DAYS IN JULY
2006...WHICH GOES DOWN IN THE RECORD BOOKS AS ONE OF THE TOP 10
WARMEST SEVENTH MONTHS AT ALL REPORTING SITES. JULY 2011 WAS ALSO
ONE OF THE TOP 10 WARMEST AT MANY LOCATIONS.

AT THE OTHER EXTREME...COOL AIRMASSES FROM CANADA CAN BRING FROST TO
MAINLY OUTLYING AREAS OF UPPER MICHIGAN DURING JULY. IRONWOOD
RECORDED A 31 DEGREE READING ON 7/2/1907...AND NEWBERRY OBSERVED 32
ON 7/21/92. ON 7/19 AND 7/20/2000...FROST DEVELOPED AT SOME INTERIOR
LOCATIONS AS CANADIAN HIGH PRESSURE PARKED ITSELF OVERHEAD AND
DROPPED THE MERCURY AS LOW AS 28. JULY 1992 GOES DOWN IN THE RECORD
BOOKS AT MOST UPPER MICHIGAN STATIONS AS THE COOLEST EVER. MEAN JULY
1992 TEMPERATURES THROUGHOUT THE AREA AVERAGED SIX TO NINE DEGREES
BELOW THE NORMAL OF 65 TO 68. JULY 2009 ENDED UP AS THE SECOND
COOLEST SEVENTH MONTH ON RECORD AT MOST PLACES...TRAILING ONLY JULY
1992 WITH A MEAN MONTHLY TEMPERATURE 4 TO 6 DEGREES BELOW AVERAGE.
JULY 2004 WAS ALSO QUITE CHILLY...WITH MOST LOCATIONS OBSERVING
MONTHLY AVERAGE TEMPERATURES 2 TO 5 DEGREES BELOW NORMAL.

ALTHOUGH THE AVERAGE JULY TENDS TO BE DRIER THAN JUNE BECAUSE THE
JET STREAM AND MOST WEATHER DISTURBANCES ARE FARTHER NORTH...
FREQUENT JULY THUNDERSTORMS CAN DROP HEAVY RAINS. DURING THE
OVERNIGHT OF 7/14-7/15 IN 1999...THUNDERSTORMS DELUGED SOUTHERN IRON
COUNTY WITH AS MUCH AS 8 INCHES OF RAIN AND CAUSED SOME FLASH
FLOODING. IN JULY 1909...AS MUCH AS 15.45 INCHES OF RAIN INUNDATED
IRONWOOD. MOST OF THIS RAIN FELL ON 7/19 INTO 7/22...WHEN THAT SITE
REPORTED AN INCREDIBLE 13.21 INCHES DURING THAT FOUR DAY STRETCH.

                  OUTLOOK FOR LATE SUMMER INTO FALL

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



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