Climatological Report (Monthly)
Issued by NWS Marquette, MI

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000
CXUS53 KMQT 291416 AAD
CLMMQT

CLIMATE REPORT...FINAL
NATIONAL WEATHER SERVICE MARQUETTE MI
1017 AM EDT SAT APR 29 2017

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

...THE MARQUETTE MI CLIMATE SUMMARY FOR THE MONTH OF MARCH 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              81   03/21/2012
 LOW              -30   03/03/2003
HIGHEST            52   03/28        33      19       61  03/12
LOWEST            -13   03/04        14     -27      -11  03/03
AVG. MAXIMUM     32.3              34.7    -2.4     39.2
AVG. MINIMUM     16.3              13.8     2.5     19.5
MEAN             24.3              24.2     0.1     29.3
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32     16              12.8     3.2       10
DAYS MIN <= 32     30              29.2     0.8       27
DAYS MIN <= 0       3               4.4    -1.4        4

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         6.08   1979
 MINIMUM         0.28   2010
TOTALS           1.84              3.03   -1.19     3.34
DAILY AVG.       0.06              0.10   -0.04     0.11
DAYS >= .01        17              14.5     2.5       12
DAYS >= .10         7               7.2    -0.2        6
DAYS >= .50         1               1.4    -0.4        3
DAYS >= 1.00        0               0.6    -0.6        1
GREATEST
 24 HR. TOTAL    0.52   03/01 TO 03/01

SNOWFALL (INCHES)
RECORDS
 TOTAL           83.1   2002
TOTALS           19.9              34.9   -15.0     18.8
SINCE 7/1       141.0             187.3   -46.3    118.9
SNOWDEPTH AVG.      9                21     -12       12
DAYS >= 1.0         6               7.2    -1.2        6
GREATEST
 SNOW DEPTH        16   03/03                         25  03/06
                                                          03/05
 24 HR TOTAL      6.2   03/01 TO 03/01

DEGREE_DAYS
HEATING TOTAL    1252              1263     -11     1096
 SINCE 7/1       6936              7887    -951     6863
COOLING TOTAL       0                 0       0        0
 SINCE 1/1          0                 0       0        0
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              MM
HIGHEST WIND SPEED/DIRECTION    MM        DATE   MM
HIGHEST GUST SPEED/DIRECTION    52/225    DATE  03/07

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               1
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN                8     FREEZING RAIN              0
LT FREEZING RAIN          8     HAIL                       1
HEAVY SNOW                0     SNOW                       4
LIGHT SNOW               20     SLEET                      2
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.

&&

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

...BELOW NORMAL SNOWFALL...
...EIGHTH LOWEST MARCH SNOWFALL AT IRONWOOD...

...BELOW NORMAL PRECIPITATION AT MOST PLACES...

...NEAR TO SLIGHTLY BELOW NORMAL MONTHLY AVERAGE TEMPERATURE...

MARCH CLIMATE STATISTICS FOR THE MARQUETTE NWS IN NEGAUNEE TOWNSHIP

                                    NORMAL   DEPARTURE
AVERAGE TEMPERATURE         24.3     24.2   PLUS    0.1
AVERAGE HIGH TEMPERATURE    32.3     34.7  MINUS    2.4
AVERAGE LOW TEMPERATURE     16.3     13.8   PLUS    2.5
HEATING DEGREE DAYS         1252     1263  MINUS     11
COOLING DEGREE DAYS            0        0             0
TOTAL PRECIPITATION         1.84     3.03  MINUS   1.19
TOTAL SNOWFALL              19.9     34.9  MINUS   15.0

HIGHEST TEMPERATURE:                    52 ON 3/28
LOWEST TEMPERATURE:                    -13 ON 3/4
GREATEST CALENDAR DAY PRECIPITATION:  0.52 ON 3/1
GREATEST 24 HOUR PRECIPITATION:       0.52 ON 3/1
GREATEST CALENDAR DAY SNOWFALL:        6.2 ON 3/1
GREATEST 24 HOUR SNOWFALL:             6.2 ON 3/1
GREATEST SNOW DEPTH:                    16 ON 3/3
PEAK WIND SPEED: 52 MPH FROM THE SOUTHWEST ON 3/7

NO NEW DAILY OR MONTHLY RECORDS ESTABLISHED IN MARCH 2017
---------------------------------------------------------------------
      ...AUGUST THROUGH MARCH VERY WARM AT THE MARQUETTE NWS...

                         AVERAGE TEMPERATURE

              OBSERVED NORMAL DEPARTURE     RECORD          RANK
MARQUETTE NWS   36.8    33.3    +3.5    38.5 /2011-12/   3RD WARMEST
---------------------------------------------------------------------
GREAT LAKES WATER LEVELS (FEET/METERS ABOVE MEAN SEA LEVEL)

                             LAKE SUPERIOR  LAKE MICHIGAN-HURON
03/01/17 DAILY MEAN          601.79/183.43     579.10/176.51
03/31/17 DAILY MEAN          601.60/183.37     579.25/176.56
AVG FEB 2017 DAILY MEAN      601.80/183.43     578.99/176.47
AVG MAR 2016 DAILY MEAN      601.91/183.46     579.42/176.61
LONG TERM MAR DAILY MEAN     601.15/183.23     578.41/176.30
MAXIMUM MAR DAILY MEAN       602.40/183.61     581.10/177.12
                                 (1986)           (1986)
MINIMUM MAR DAILY MEAN       599.54/182.74     576.05/175.58
                                 (1926)           (1964)

...WATER LEVELS REMAIN ABOVE NORMAL IN MARCH...

EVEN THOUGH THE OBSERVED LAKE SUPERIOR WATER LEVEL FELL AGAIN DURING
MARCH, THE WELL ABOVE NORMAL WATER LEVELS AT THE END OF LAST
SUMMER ENSURED THE LAKE LEVEL REMAINED ABOVE AVERAGE THROUGH 3/31.
AT THE END OF MARCH, WATER LEVELS ON LAKE SUPERIOR WERE 5 TO 6
INCHES ABOVE NORMAL BUT AROUND AN INCH LOWER THAN OBSERVED IN MARCH
2016. THE LEVEL ON LAKES MICHIGAN AND HURON ACTUALLY ROSE THROUGH
MARCH SO THAT AT THE END OF THE MONTH THE LEVEL WAS ABOUT 10 INCHES
ABOVE NORMAL BUT AROUND AN INCH LOWER THAN IN MARCH 2016.

DUE TO THE OVERALL WINTER WARMTH ACROSS THE UPPER GREAT LAKES, ICE
COVER ON LAKE SUPERIOR AND LAKES MICHIGAN-HURON IN MARCH WAS
RESTRICTED TO THE SHELTERED BAYS ALONG THE SHORES OF THESE GREAT
LAKES. EXCEPT FOR AROUND WHITEFISH BAY, MOST OF THIS ICE MELTED LATE
IN 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.
---------------------------------------------------------------------
                       MARCH CLIMATE HIGHLIGHTS

HIGHEST REPORTED TEMPERATURE...60 AT IRON MOUNTAIN, WAKEFIELD IN
                                GOGEBIC COUNTY, KENTON IN HOUGHTON
                                COUNTY, AND LABRANCHE IN MENOMINEE
                                COUNTY ON 3/28

LOWEST REPORTED TEMPERATURE...-18 AT AMASA IN IRON COUNTY AND
                               CLARKSBURG IN MARQUETTE COUNTY ON 3/4

HIGHEST AVERAGE TEMPERATURE...27.6 DEGREES AT NORWAY IN DICKINSON
                               COUNTY

LOWEST AVERAGE TEMPERATURE...21.0 DEGREES AT HERMAN IN BARAGA COUNTY

HIGHEST MONTHLY PRECIPITATION...2.69 INCHES AT GRAND MARAIS IN ALGER
                                 COUNTY

LOWEST MONTHLY PRECIPITATION...0.77 INCH AT JACOBSVILLE IN HOUGHTON
                                COUNTY

HIGHEST MONTHLY SNOWFALL...22.9 INCHES AT GRAND MARAIS

LOWEST MONTHLY SNOWFALL...2.3 INCHES AT IRON MOUNTAIN

GREATEST MONTHLY SNOW DEPTH...39 INCHES AT GRAND MARAIS ON 3/3

AS HAS BEEN THE CASE FOR THE PAST COUPLE OF MONTHS, THE MARCH 2017
WEATHER PATTERN ACROSS THE UPPER GREAT LAKES WAS A VERY CHANGEABLE
ONE WITH ALTERNATING BOUTS OF UNSEASONABLY COLD AND WARM WEATHER.
SINCE THE TEMPERATURE EXTREMES TENDED TO BALANCE OUT, THE OBSERVED
MEAN MARCH AVERAGE TEMPERATURE BETWEEN 21 AND 28 DEGREES ENDED UP
NEAR TO A BIT BELOW NORMAL ACROSS THE UPPER PENINSULA. EVEN THOUGH
MARCH IS TYPICALLY 8 TO 10 DEGREES WARMER THAN FEBRUARY, MARCH 2017
ENDED UP ONLY 1 TO 3 DEGREES WARMER THAN THE MONTH BEFORE DUE TO THE
UNSEASONABLE WARMTH OBSERVED IN FEBRUARY 2017.

ALTHOUGH SOME PLACES OVER MAINLY THE SOUTHEAST PORTION OF UPPER
MICHIGAN SAW ABOVE NORMAL PRECIPITATION IN MARCH, FEWER DEEP LOW
PRESSURE SYSTEMS IMPACTED THE UPPER LAKES. SO MONTHLY PRECIPITATION
ENDED UP BELOW AVERAGE AT MOST LOCATIONS. LESS THAN AN INCH OF
LIQUID EQUIVALENT PRECIPITATION FELL IN A SWATH OVER THE WEST,
INCLUDING ONLY 0.77 INCH AT JACOBSVILLE IN HOUGHTON COUNTY AND 0.80
INCH AT BARAGA. THESE TOTALS ARE ABOUT TWO THIRDS OF NORMAL.
MANISTIQUE REPORTED 2.52 INCHES OF PRECIPITATION, ABOUT 140 PERCENT
OF THE MARCH AVERAGE, DUE TO SOME HEAVIER RAINS THAT OCCURRED IN
THAT AREA DURING THE FOURTH WEEK OF THE MONTH. A TOTAL OF 1.34
INCHES OF RAIN, OVER HALF THE MONTHLY PRECIPITATION TOTAL, FELL AT
MANISTIQUE FROM LATE ON 3/23 THROUGH 3/26 AS A SERIES OF LOW
PRESSURE SYSTEMS TRACKED ALONG A STALLED FRONT IN THE CENTRAL GREAT
LAKES. AT SOME COLDER PLACES, THIS RAIN HAPPENED WHEN SURFACE
TEMPERATURES WERE BELOW 32, RESULTING IN FREEZING RAIN AND SOME
ICING.

EVEN WHERE MARCH PRECIPITATION WAS ABOVE NORMAL OVER THE SOUTHEAST,
MONTHLY SNOWFALL ENDED UP BELOW AVERAGE AT MOST PLACES ACROSS UPPER
MICHIGAN AS THE HEAVIER PRECIPITATION FELL MAINLY AS RAIN. ONLY 2.3
INCHES AND 5.3 INCHES FELL THE WHOLE MONTH AT IRON MOUNTAIN AND
IRONWOOD RESPECTIVELY, ABOUT 20 PERCENT OF NORMAL AT BOTH SITES.
THE MONTHLY SNOWFALL AT IRONWOOD WAS THE EIGHTH LOWEST MARCH TOTAL
ON RECORD. ONE AREA THAT DID SEE NEAR NORMAL SNOW WAS EAST OF
MARQUETTE NEAR LAKE SUPERIOR DUE TO SOME HEAVIER LAKE EFFECT SNOWS
THAT OCCURRED DURING COLD AIR OUTBREAKS THE FIRST HALF OF MARCH.
GRAND MARAIS IN ALGER COUNTY PICKED UP ALMOST 23 INCHES OF SNOW. ALL
BUT 3 INCHES OF THIS TOTAL ACCUMULATED BEFORE 3/14.

DURING THE FIRST ARCTIC AIR INVASION, A FEW LOCATIONS SAW THE
MERCURY DIP TO UNDER -10 DURING THE MORNING ON 3/3 AND 3/4,
INCLUDING THE MONTHLY MINIMUM READING OF -18 AT AMASA IN IRON COUNTY
AND CLARKSBURG IN MARQUETTE COUNTY ON 3/4. AFTER THIS ARCTIC AIR
RETREATED QUICKLY TO THE EAST, A SURGE OF WARMER AIR LIFTED
TEMPERATURES INTO THE 50S AT SOME PLACES ON 3/6 AND 3/7. AT MANY
PLACES, THIS UNSEASONABLE WARMTH RESULTED IN A COMPLETE MELTING OF
THE WINTER SNOW PACK. THE PASSAGE OF A COLD FRONT ON 3/7 THAT CAUSED
WIND GUSTS IN EXCESS OF 50 MPH AND EVEN AS HIGH AS 71 MPH NEAR
GERMFASK IN SCHOOLCRAFT COUNTY ENDED THIS SPRING-LIKE WARMTH.

AS ARCTIC AIR SLOWLY FILTERED INTO THE UPPER LAKES FOLLOWING SOME
REINFORCING COLD FRONTS, HIGH TEMPERATURES ON 3/10 FAILED TO REACH
10 AT A FEW LOCATIONS. THERE WERE MORE MINIMUM TEMPERATURE REPORTS
OF -10 OR LOWER ON 3/14 AND 3/15 AS THE CORE OF THE COLD AIRMASS
MOVED OVERHEAD. AFTER A SLOW MODERATION, SOME LOCATIONS SAW MAXIMUM
TEMPERATURES CLIMB INTO THE 50S ON 3/20, 3/28, 3/29 AND 3/31. THE
WARMEST DAY WAS ON 3/28, WHEN THE THERMOMETER REACHED 60 AT IRON
MOUNTAIN, WAKEFIELD IN GOGEBIC COUNTY, KENTON IN HOUGHTON COUNTY,
AND LABRANCHE IN MENOMINEE COUNTY.

A LOW PRESSURE SYSTEM MOVING THROUGH THE LOWER GREAT LAKES ON 3/1
DROPPED SOME LIGHT TO MODERATE SNOWFALL IN THE MORNING ON THAT DAY.
MOST PLACES ACROSS THE SOUTHEAST AND NORTH CENTRAL PORTIONS OF UPPER
MICHIGAN PICKED UP AT LEAST 2 TO 4 INCHES OF SNOW DURING THIS EVENT
ALONG WITH 0.25 TO 0.33 INCH OF WATER EQUIVALENT PRECIPITATION.
NEGAUNEE OVER THE HIGHER TERRAIN OF MARQUETTE COUNTY MEASURED THE
MOST PRECIPITATION AND SNOWFALL WITH 0.55 INCH AND 7.6 INCHES
RESPECTIVELY DURING THIS EVENT.

A COLD FRONT ATTENDANT TO DEEP LOW PRESSURE MOVING THROUGH SOUTH
CENTRAL CANADA CROSSED UPPER MICHIGAN DURING THE NIGHT ON 3/6-3/7,
ACCOMPANIED BY SOME SHOWERS AND EVEN A FEW THUNDERSTORMS. THE MOST
RAIN IN THE 0.25 TO 0.50 INCH RANGE FELL OVER THE EAST HALF OF THE
U.P., INCLUDING AS MUCH AS 0.58 INCH AT MANISTIQUE. WEST WINDS
BEHIND THE FRONTAL PASSAGE GUSTED AS HIGH AS 45 TO 55 MPH DURING THE
EARLY MORNING HOURS ON 3/7. THE GUSTY WEST WINDS AS HIGH AS 40 TO 50
MPH CONTINUED INTO EARLY 3/9 ON THE SOUTHERN FLANK OF THE DEEP LOW
PRESSURE MOVING TOWARD HUDSON BAY. WHILE THE ARRIVAL OF COLDER AIR
IN THIS STRONG FLOW CAUSED SOME LAKE EFFECT SNOW SHOWERS, SNOW
ACCUMULATIONS FROM 3/7 INTO 3/9 WERE GENERALLY NO MORE THAN THE 4 TO
5 INCHES THAT FELL AT PAINESDALE IN HOUGHTON COUNTY. BUT THE GUSTY
WINDS DID CAUSE CONSIDERABLE BLOWING SNOW, ESPECIALLY AT EXPOSED
LOCATIONS NEAR LAKE SUPERIOR.

ALTHOUGH THERE WERE FREQUENT LAKE EFFECT SNOW SHOWERS ON 3/10 INTO
3/15 DURING THE ARCTIC AIR OUTBREAK, NO MORE THAN ABOUT 4 TO 6
INCHES ACCUMULATED DURING THIS STRETCH EVEN IN THE FAVORED SNOW
BELTS DUE TO THE OVERALL DRYNESS OF THE COLD AIRMASS.

A BAND OF SNOW AHEAD OF AN APPROACHING WARM FRONT ON 3/17 RESULTED
IN 1 TO 3 INCHES OF SNOW ACCUMULATION AT MOST PLACES ACROSS UPPER
MICHIGAN. SOME RAIN SHOWERS AND EVEN A FEW THUNDERSTORMS THAT FORMED
AHEAD OF AN APPROACHING WARM FRONT CROSSED UPPER MICHIGAN AND EVEN
DROPPED SMALL HAIL DURING THE NIGHT ON 3/19-3/20. ANY PRECIPITATION
WAS GENERALLY NO MORE THAN 0.25 INCH. AFTER A MOSTLY SUNNY AND
PLEASANTLY WARM FIRST DAY OF SPRING ON 3/20 FOLLOWING THE FRONTAL
PASSAGE, A STRONG COLD FRONT SWUNG THROUGH THE UPPER LAKES ON 3/21.
NORTH WINDS GUSTING AS HIGH AS 40 TO 50 MPH NEAR LAKE SUPERIOR
BEHIND THE FRONT ADVECTED ENOUGH COLD AIR INTO THE AREA TO CAUSE
SOME LAKE EFFECT SNOW SHOWERS.

A PAIR OF DISTURBANCES MOVING EAST ALONG A STATIONARY FRONT
STRETCHING FROM THE UPPER MIDWEST ACROSS THE LOWER GREAT LAKES
BROUGHT FREEZING RAIN TO PORTIONS OF THE UPPER PENINSULA LATE ON
3/23 INTO 3/24 AND AGAIN LATE ON 3/25 INTO 3/26. DURING THE FIRST
EVENT, OVER 0.50 INCH OF RAIN FELL OVER THE SOUTHEAST NEAR LAKE
MICHIGAN, WITH AS MUCH AS 0.95 INCH AT MANISTIQUE AND 0.86 INCH AT
GARDEN CORNERS IN DELTA COUNTY. FORTUNATELY, TEMPERATURES WHERE THE
HEAVIEST RAIN FELL WERE WARM ENOUGH TO LIMIT ICE ACCUMULATION. BUT
AS MUCH AS A QUARTER INCH OF ICE BUILT UP ON SOME SURFACES OVER THE
NORTH CENTRAL AND WEST. DURING THE 3/25-3/26 PERIOD, AS MUCH AS 0.25
TO 0.40 INCH OF RAIN FELL AT SOME LOCATIONS. UP TO A TENTH OF AN
INCH OF ICE ACCUMULATED WHERE TEMPERATURES WERE BELOW FREEZING FOR A
TIME WHEN THE RAIN FELL FROM THE KEWEENAW TO SOUTH CENTRAL UPPER
MICHIGAN. THERE WAS ALSO SOME LOCALLY DENSE FOG ON 3/26 INTO 3/27,
WHEN SOME DRY AIR FOLLOWED A COLD FRONTAL PASSAGE.
---------------------------------------------------------------------
 ...AUGUST THROUGH MARCH VERY WARM AND WET ACROSS UPPER MICHIGAN...

         ...TOP 10 WARMEST AND 25 WETTEST AT MOST PLACES...

                         AVERAGE TEMPERATURE

              OBSERVED NORMAL DEPARTURE    RECORD           RANK
MANISTIQUE      40.0    36.2    +3.8   39.9 /2011-12/ RECORD WARMEST

HOUGHTON        38.6    34.1    +4.5   39.4 /2011-12/    3RD WARMEST

NEWBERRY        39.6    35.8    +3.8   41.0 /2011-12/    3RD WARMEST

MARQUETTE NWS   36.8    33.3    +3.5   38.5 /2011-12/    3RD WARMEST

IRON MOUNTAIN   38.9    35.1    +3.8   40.0 /2011-12/    4TH WARMEST

MUNISING        38.9    36.3    +2.6   40.1 /2011-12/    4TH WARMEST

IRONWOOD        36.4    32.8    +3.6   38.2 /2011-12/    5TH WARMEST

MARQUETTE CITY  40.6    37.6    +3.0   43.0 /1877-88/    6TH WARMEST

                            PRECIPITATION

              OBSERVED NORMAL DEPARTURE     RECORD          RANK
MANISTIQUE     24.96   19.06    +5.90  30.03 /1978-79/   4TH HIGHEST

NEWBERRY       25.44   23.30    +2.14  37.39 /2001-02/  15TH HIGHEST

HOUGHTON       26.49   18.38    +8.11  36.78 /1985-86/  18TH HIGHEST

IRON MOUNTAIN  19.47   17.39    +2.08  25.64 /1995-96/  19TH HIGHEST

IRONWOOD       23.74   21.40    +2.34  31.68 /1941-42/  25TH HIGHEST

MARQUETTE CITY 22.23   18.65    +3.58  33.86 /1988-89/      ****

MARQUETTE NWS  23.45   23.94    -0.49  34.61 /1985-86/      ****

**** RANK NOT IN TOP 25
---------------------------------------------------------------------
SOME OTHER TEMPERATURE AND PRECIPITATION OBSERVATIONS ACROSS UPPER
MICHIGAN IN MARCH 2017 INCLUDE:

IRONWOOD...AVERAGE TEMPERATURE 24.6 /0.5 DEGREE BELOW NORMAL/
           PRECIPITATION 1.46 INCHES /0.52 INCH BELOW NORMAL/
           SNOWFALL 5.3 INCHES /19.6 INCHES BELOW NORMAL/

WATERSMEET (GOGEBIC COUNTY)...PRECIPITATION 0.97 INCH
                              SNOWFALL 3.0 INCHES

GREENLAND (ONTONAGON COUNTY)...PRECIPITATION 0.78 INCH
                               SNOWFALL 4.9 INCHES

BERGLAND DAM (ONTONAGON COUNTY)...AVERAGE TEMPERATURE 23.1 DEGREES
                                  PRECIPITATION 1.65 INCHES
                                  SNOWFALL 9.6 INCHES

HOUGHTON COUNTY...AVERAGE TEMPERATURE 25.4 /0.2 DEGREE ABOVE NORMAL/
AIRPORT           PRECIPITATION 0.97 INCH /0.59 INCH BELOW NORMAL/
                  SNOWFALL 7.0 INCHES /12.2 INCHES BELOW NORMAL/

ATLANTIC MINE (HOUGHTON COUNTY)...PRECIPITATION 1.37 INCHES
                                  SNOWFALL 11.0 INCHES

PAINESDALE (HOUGHTON COUNTY)...SNOWFALL 14.8 INCHES

COPPER HARBOR...AVERAGE TEMPERATURE 27.1 DEGREES
                PRECIPITATION 1.83 INCHES
                SNOWFALL 8.9 INCHES

JACOBSVILLE (HOUGHTON COUNTY)...AVERAGE TEMPERATURE 23.4 DEGREES
                                PRECIPITATION 0.77 INCH
                                SNOWFALL 5.2 INCHES

BARAGA...AVERAGE TEMPERATURE 25.6 DEGREES
         PRECIPITATION 0.80 INCH
         SNOWFALL 7.0 INCHES

HERMAN (BARAGA COUNTY)...AVERAGE TEMPERATURE 21.0 DEGREES
                         PRECIPITATION 1.52 INCHES
                         SNOWFALL 12.6 INCHES

CLARKSBURG (MARQUETTE COUNTY)...PRECIPITATION 1.02 INCHES
                                SNOWFALL 5.9 INCHES

BIG BAY (MARQUETTE COUNTY)...AVERAGE TEMPERATURE 26.4 DEGREES
                             PRECIPITATION 1.41 INCHES
                             SNOWFALL 9.6 INCHES

MARQUETTE CITY...AVERAGE TEMPERATURE 27.1 /1.9 DEGREES BELOW NORMAL/
                 PRECIPITATION 1.29 INCHES /0.71 INCH BELOW NORMAL/
                 SNOWFALL 8.2 INCHES /13.5 INCHES BELOW NORMAL/

CHATHAM (ALGER COUNTY)...AVERAGE TEMPERATURE 26.0 DEGREES
                         PRECIPITATION 2.13 INCHES
                         SNOWFALL 14.9 INCHES

MUNISING...AVERAGE TEMPERATURE 26.3 /1.4 DEGREES BELOW NORMAL/
           PRECIPITATION 2.57 INCHES /0.48 INCH ABOVE NORMAL/
           SNOWFALL 14.9 INCHES /3.9 INCHES BELOW NORMAL/

GRAND MARAIS...PRECIPITATION 2.69 INCHES
(10 MILES SOUTH)    SNOWFALL 22.9 INCHES

NEWBERRY...AVERAGE TEMPERATURE 26.4 /0.4 DEGREE BELOW NORMAL/
           PRECIPITATION 1.58 INCHES /0.69 INCH BELOW NORMAL/
           SNOWFALL 11.3 INCHES /6.6 INCHES BELOW NORMAL/

STAMBAUGH (IRON COUNTY)...AVERAGE TEMPERATURE 21.7 DEGREES
                          PRECIPITATION 1.36 INCHES
                          SNOWFALL 4.1 INCHES

AMASA (IRON COUNTY)...AVERAGE TEMPERATURE 22.5 DEGREES
                      PRECIPITATION 1.09 INCHES
                      SNOWFALL 3.4 INCHES

FORD AIRPORT...AVERAGE TEMPERATURE 27.0 DEGREES
 NEAR IRON MOUNTAIN

IRON MOUNTAIN...AVERAGE TEMPERATURE 27.1 /0.8 DEGREE BELOW NORMAL/
                PRECIPITATION 1.18 INCHES /0.47 INCH BELOW NORMAL/
                SNOWFALL 2.3 INCHES /8.3 INCHES BELOW NORMAL/

NORWAY (DICKINSON COUNTY)...AVERAGE TEMPERATURE 27.6 DEGREES
                            PRECIPITATION 1.23 INCHES
                            SNOWFALL 3.2 INCHES

ESCANABA...PRECIPITATION 1.52 INCHES
           SNOWFALL 3.7 INCHES

GLADSTONE (DELTA COUNTY)...PRECIPITATION 1.95 INCHES
                           SNOWFALL 5.9 INCHES

GARDEN CORNERS (DELTA COUNTY)...AVERAGE TEMPERATURE 26.6 DEGREES
                                PRECIPITATION 2.06 INCHES
                                SNOWFALL 3.9 INCHES

COOKS (SCHOOLCRAFT COUNTY)...PRECIPITATION 2.58 INCHES
                             SNOWFALL 8.8 INCHES

MANISTIQUE...AVERAGE TEMPERATURE 26.6 /0.5 DEGREE BELOW NORMAL/
             PRECIPITATION 2.52 INCHES /0.73 INCH ABOVE NORMAL/
             SNOWFALL 6.9 INCHES /3.9 INCHES BELOW NORMAL/
---------------------------------------------------------------------
                            MAY FORECAST

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

                           MAY CLIMATOLOGY

MAY BRINGS A CONTINUED MODERATION IN TEMPERATURE AS DAYLIGHT
CONTINUES TO LENGTHEN. POSSIBLE SUNSHINE INCREASES FROM 863 MINUTES
ON 5/1 TO 932 MINUTES ON 5/31. THE AVERAGE TEMPERATURE IN MAY IS 12
TO 13 DEGREES HIGHER THAN IN APRIL. ALTHOUGH AVERAGE HIGH
TEMPERATURES REACH AROUND 70 BY MEMORIAL DAY OVER INLAND AREAS...
THE RELATIVELY COLD WATERS OF THE GREAT LAKES OFTEN KEEP SHORE
COMMUNITIES UP TO 20 DEGREES COOLER IN THE AFTERNOON. MORNING
TEMPERATURES FREQUENTLY SLIP BELOW FREEZING AT THE BEGINNING OF
MAY...BUT AVERAGE LOW TEMPERATURES RISE ABOVE 40 AFTER MID MONTH.

THE INCREASE IN AVERAGE TEMPERATURE RESULTS IN A GREATER THREAT OF
SHOWERS AND THUNDERSTORMS. AVERAGE PRECIPITATION IS 10 TO 40 PERCENT
HIGHER THAN IN APRIL...WITH THE GREATEST AMOUNTS MOST LIKELY NEAR
THE WISCONSIN BORDER WHERE THE STABILIZING INFLUENCE OF THE GREAT
LAKES IS LESS.

MAY IS GENERALLY A TEMPERATE MONTH...BUT WINTER CHILL IS STILL
POSSIBLE. ALTHOUGH AVERAGE TEMPERATURES RISE SHARPLY...FROST OFTEN
OCCURS AT THE END OF MAY AS RECORD LOW TEMPERATURES REMAIN BELOW
FREEZING THE ENTIRE MONTH AT MANY LOCATIONS. NEWBERRY SAW THE
MERCURY PLUNGE ALL THE WAY TO 19 AS LATE AS 5/24...IN 1925. MAY 1997
GOES DOWN IN THE RECORD BOOKS AS ONE OF THE COLDEST EVER AT ALL
REPORTING STATIONS WITH MONTHLY TEMPERATURES AS MUCH AS SEVEN TO
EIGHT DEGREES BELOW NORMAL. IN FACT...THIS MONTH IS THE COLDEST
FIFTH MONTH EVER AT MANISTIQUE (AVERAGE TEMPERATURE 44.4)...IRON
MOUNTAIN (45.9) AND ONTONAGON (46.6) AS WELL AS IN THE TOP TEN
COLDEST AT MOST OTHER UPPER MICHIGAN LOCATIONS. EVEN MORE
RECENTLY...MAY 2002 LANDED IN THE LIST OF TOP TEN COLDEST. MONTHLY
TEMPERATURES IN MAY 2002 AVERAGED 5 TO 7 DEGREES BELOW NORMAL AT
MOST SITES. AT MUNISING...THE MERCURY AVERAGED 9 DEGREES BELOW
NORMAL (41.5) AND THE MONTH GOES DOWN IN THE RECORD BOOKS AS THE
COLDEST MAY EVER. AT STATIONS WITH A LONGER TERM RECORD...MAY 1954
STANDS OUT AS VERY CHILLY...IN FACT THE COLDEST EVER AT THE HOUGHTON
COUNTY AIRPORT (41.8)...WHEN MONTHLY TEMPERATURES FELL OVER EIGHT
DEGREES BELOW NORMAL.

SNOW CAN STILL PLAGUE UPPER MICHIGAN DURING MAY. A LATE SEASON
SNOWSTORM OCCURRED IN CENTRAL UPPER MICHIGAN ON 5/9-5/10/90...WHEN
AN IMPRESSIVE 22.4 INCHES OF HEAVY WET SNOW FELL AT THE MARQUETTE
NWS...11 INCHES BLANKETED IRON MOUNTAIN...AND 7 INCHES FELL ON
MUNISING. DURING THE CHILLY MAY 1997...13 INCHES OF THE WHITE STUFF
ACCUMULATED AT ONTONAGON ON 5/12 AND 11.3 INCHES SMOTHERED IRONWOOD.
NEWBERRY WAS STRUCK BY AN EVEN LATER MAY SNOWSTORM...10 INCHES
ACCUMULATED THERE ON 5/23 AND 5/24 BACK IN 1917. MEASURABLE SNOW AS
LATE AS MEMORIAL DAY IS NOT UNPRECEDENTED...IRONWOOD RECORDED 3.7
INCHES OF SNOW ON 5/28/65.

ALTHOUGH SNOW CAN STILL FALL IN MAY...SPRING HEAT WAVES CAN ALSO
BRING MID SUMMER HEAT TO UPPER MICHIGAN. ON 5/31 IN 1934...BOTH IRON
MOUNTAIN AND IRONWOOD RECORDED MONTHLY RECORD 100 DEGREE HIGH
TEMPERATURES. RECORD HIGH TEMPERATURES ARE IN THE 90S EVERYWHERE BY
MONTHS` END...EXCEPT AT MANISTIQUE WHERE A SOUTHERLY FLOW OFF LAKE
MICHIGAN OFTEN KEEPS AFTERNOON MAXIMUM TEMPERATURES FROM GETTING AS
HIGH AS FARTHER INLAND. MAY 1977 AND 1998 ARE THE WARMEST MAYS IN
RECENT MEMORY. MAY 1977 IS THE WARMEST ON RECORD AT IRON MOUNTAIN
(62.4)...THE MARQUETTE NWS (59.4)...THE HOUGHTON COUNTY AIRPORT
(58.1) AND MUNISING (57.5). MAY 1998 GOES DOWN IN THE RECORD BOOKS
AS THE WARMEST ON RECORD AT NEWBERRY (59.1) AND IN THE TOP FIVE
WARMEST AT MANY OTHER PLACES. MAY 2000 SAW A VERY SUMMERLIKE WEEK IN
THE EARLY PART OF THE MONTH...AND TEMPERATURES AVERAGED 20 DEGREES
ABOVE NORMAL AT MANY LOCATIONS BETWEEN 5/3 AND 5/8. BARAGA SAW THE
MERCURY REACH 90 ON 5/5/2000...AND THE MARQUETTE NWS BROKE FOUR
DAILY RECORD HIGH TEMPERATURES DURING THAT 6-DAY STRETCH. IN FACT...
THE WEEK BETWEEN 5/3/00 AND 5/8/00 IS THE WARMEST 6-DAY PERIOD ON
RECORD IN EARLY MAY AT THE MARQUETTE NWS. MORE RECENTLY...MAY 2010
FEATURED A MEAN MONTHLY AVERAGE TEMPERATURE 3 TO 5 DEGREES ABOVE
NORMAL.

                         OUTLOOK FOR SUMMER

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