Climatological Report (Monthly)
Issued by NWS Marquette, MI

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000
CXUS53 KMQT 170223 CCA
CLMMQT

CLIMATE REPORT...PRELIMINARY
NATIONAL WEATHER SERVICE MARQUETTE MI
1020 PM EDT THU MAY 16 2013

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

...THE MARQUETTE MI CLIMATE SUMMARY FOR THE MONTH OF APRIL 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              92   04/22/1980
 LOW               -9   04/06/2003
HIGHEST            67   04/30        46      21       72  04/14
                        04/27
LOWEST              2   04/02        27     -25       19  04/28
                                                          04/06
AVG. MAXIMUM     40.7              47.8    -7.1     49.8
AVG. MINIMUM     24.1              28.0    -3.9     28.1
MEAN             32.4              37.9    -5.5     39.0
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      8               2.6     5.4        0
DAYS MIN <= 32     27              21.1     5.9       25
DAYS MIN <= 0       0               0.1    -0.1        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         6.56   1985
 MINIMUM         0.90   1998
TOTALS           4.76              3.01    1.75     2.27
DAILY AVG.       0.16              0.10    0.06     0.08
DAYS >= .01        18              12.2     5.8       11
DAYS >= .10        10               6.9     3.1        4
DAYS >= .50         3               1.7     1.3        2
DAYS >= 1.00        0               0.6    -0.6        1
GREATEST
 24 HR. TOTAL    1.02   04/11 TO 04/12

SNOWFALL (INCHES)
RECORDS
 TOTAL           55.2   2007
TOTALS           27.6              14.5    13.1      1.7
SINCE 7/1       210.2             201.8     8.4    152.8
SNOWDEPTH AVG.     31                11      20        0
DAYS >= 1.0         7               3.3     3.7        0
GREATEST
 SNOW DEPTH        39   04/15                          1  04/17
                        04/13
 24 HR TOTAL      9.5   04/11 TO 04/12

DEGREE_DAYS
HEATING TOTAL     971               815     156      772
 SINCE 7/1       8631              8702     -71     7333
COOLING TOTAL       0                 1      -1        0
 SINCE 1/1          0                 1      -1        4
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              MM
HIGHEST WIND SPEED/DIRECTION    MM        DATE   MM
HIGHEST GUST SPEED/DIRECTION    34/180    DATE  04/21

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                       0
LIGHT RAIN                9     FREEZING RAIN              1
LT FREEZING RAIN          9     HAIL                       0
HEAVY SNOW                0     SNOW                       4
LIGHT SNOW               19     SLEET                      4
FOG                       9     FOG W/VIS <= 1/4 MILE      6
HAZE                      0

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

&&

...APRIL 2013 MONTHLY CLIMATE SUMMARY FOR UPPER MICHIGAN...
(THIS DISCUSSION DOES NOT INCLUDE CHIPPEWA AND MACKINAC COUNTIES)

...VERY CHILLY...

...SECOND COLDEST APRIL AT IRONWOOD...
...THIRD COLDEST APRIL AT ONTONAGON...
...FIFTH COLDEST APRIL AT THE MARQUETTE NWS AND MANISTIQUE...
...SEVENTH COLDEST APRIL AT IRON MOUNTAIN AND HOUGHTON...

...WELL ABOVE NORMAL PRECIPITATION AND SNOWFALL AT MOST PLACES...

...RECORD APRIL SNOWFALL AT IRONWOOD AND ONTONAGON...
...RECORD APRIL SNOWFALL AT HOUGHTON...
...SECOND HIGHEST APRIL SNOWFALL AT NEWBERRY...
...FOURTH HIGHEST APRIL SNOWFALL AT MANISTIQUE...
...SEVENTH HIGHEST APRIL SNOWFALL AT THE MARQUETTE NWS...
...SEVENTH HIGHEST APRIL SNOWFALL AT MUNISING...

...SECOND HIGHEST APRIL PRECIPITATION AT HOUGHTON...
...THIRD HIGHEST APRIL PRECIPITATION AT IRONWOOD...
...FOURTH HIGHEST APRIL PRECIPITATION AT ONTONAGON...
...SIXTH HIGHEST APRIL PRECIPITATION AT THE MARQUETTE NWS...
...TENTH HIGHEST APRIL PRECIPITATION AT MUNISING...

APRIL CLIMATE STATISTICS FOR THE MARQUETTE NWS IN NEGAUNEE TOWNSHIP

                                    NORMAL   DEPARTURE
AVERAGE TEMPERATURE         32.4     37.9  MINUS    5.5
AVERAGE HIGH TEMPERATURE    40.7     47.8  MINUS    7.1
AVERAGE LOW TEMPERATURE     24.1     28.0  MINUS    3.9
HEATING DEGREE DAYS          971      815   PLUS    156
COOLING DEGREE DAYS            0        1  MINUS      1
TOTAL PRECIPITATION         4.76     3.01   PLUS   1.75
TOTAL SNOWFALL              27.6     14.5   PLUS   13.1

HIGHEST TEMPERATURE:                    67 ON 4/27 AND 4/30
LOWEST TEMPERATURE:                      2 ON 4/2
GREATEST CALENDAR DAY PRECIPITATION:  0.97 ON 4/12
GREATEST 24 HOUR PRECIPITATION:       1.02 ON 4/11-4/12
GREATEST CALENDAR DAY SNOWFALL:        9.4 ON 4/12
GREATEST 24 HOUR SNOWFALL:             9.5 ON 4/11-4/12
PEAK WIND SPEED:     34 MPH FROM THE SOUTH ON 4/21
MAXIMUM SNOW DEPTH:                     39 ON 4/13 AND 4/15

DAILY RECORD LOW MAXIMUM TEMPERATURE ON 4/1...22 (OLD RECORD
                                                  23...1992)
DAILY RECORD LOW MINIMUM TEMPERATURE ON 4/2...2 (3...2008)
DAILY RECORD LOW MAXIMUM TEMPERATURE TIED ON 4/12...28
                                             (28...1992/2007)
DAILY RECORD SNOWFALL TIED ON 4/12...9.4 (9.4...1972)
DAILY RECORD SNOWFALL ON 4/14...2.3 (0.6...1974/88)
DAILY RECORD SNOWFALL ON 4/19...6.3 (3.4...1982)
DAILY RECORD LOW MINIMUM TEMPERATURE ON 4/20...10 (13...1983)
DAILY RECORD LOW MAXIMUM TEMPERATURE TIED ON 4/20...29 (29...1982)
DAILY RECORD LOW MINIMUM TEMPERATURE ON 4/24...18 (20...1972)
DAILY RECORD SNOWFALL ON 4/25...1.5 (0.3...2002)
FIFTH HIGHEST APRIL PRECIPITATION...4.76 (RECORD 6.56...1985)
SEVENTH HIGHEST APRIL SNOWFALL...27.6 (RECORD 55.2...2007)
---------------------------------------------------------------------
GREAT LAKES WATER LEVELS (FEET/METERS ABOVE MEAN SEA LEVEL)

                            LAKE SUPERIOR  LAKE MICHIGAN-HURON
4/01/13 DAILY MEAN          600.08/182.91     576.22/175.63
4/30/13 DAILY MEAN          600.30/182.97     577.04/175.88
AVG MAR 2013 DAILY MEAN     600.09/182.91     576.23/175.63
AVG APR 2012 DAILY MEAN     600.40/183.00     577.51/176.03
LONG TERM APR DAILY MEAN    601.20/183.26     578.70/176.39
MAXIMUM APR DAILY MEAN      602.60/183.68     581.50/177.23
                                (1986)           (1986)
MINIMUM APR DAILY MEAN      599.50/182.72     576.10/175.61
                                (1926)           (1964)

...GREAT LAKES WATER LEVELS ON THE REBOUND IN APRIL...

THANKS TO SOME HEAVY LATE WINTER AND EARLY SPRING PRECIPITATION IN
THE LAKE MICHIGAN/HURON DRAINAGE BASIN...THE WATER LEVEL ON THOSE
LAKES ROSE 9 TO 10 INCHES DURING APRIL 2013. BUT SINCE INCREASED
EVAPORATION DUE TO VERY WARM LAKE WATERS AND A LACK OF SIGNIFICANT
WINTER ICE HAS RESULTED IN WELL BELOW NORMAL GREAT LAKES WATER
LEVELS FOR THE PAST SEVERAL YEARS...THE WATER LEVEL ON 4/30 WAS
STILL 22 INCHES BELOW THE LONG TERM AVERAGE. HEAVY PRECIPITATION
ALSO FELL IN THE LAKE SUPERIOR DRAINAGE BASIN IN APRIL. BUT SINCE
MUCH OF THIS PRECIPITATION WAS IN THE FORM OF SNOW...RUNOFF WAS
LIMITED AND RAISED THE LAKE LEVEL ONLY 2 TO 3 INCHES. ON 4/30...
LAKE SUPERIOR AVERAGED ALMOST 11 INCHES BELOW THE LONG TERM NORMAL.

ALTHOUGH TEMPERATURES REMAINED WELL BELOW NORMAL THROUGH MOST OF
APRIL...LINGERING LAKE ICE OVER THE BAY OF GREEN BAY AND IN THE LAKE
SUPERIOR NEARSHORE WATERS SLOWLY MELTED THROUGH THE MONTH AND WAS
GONE BY THE END OF APRIL.

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).
---------------------------------------------------------------------
                       APRIL CLIMATE HIGHLIGHTS

HIGHEST REPORTED TEMPERATURE...82 AT WATERSMEET IN GOGEBIC COUNTY
                               AND JUST INLAND FROM ONTONAGON ON 4/30

LOWEST REPORTED TEMPERATURE...-8 AT AT CLARKSBURG-CHAMPION IN
                               MARQUETTE COUNTY ON 4/3

HIGHEST AVERAGE TEMPERATURE...37.1 DEGREES AT HARVEY IN MARQUETTE
                               COUNTY

LOWEST AVERAGE TEMPERATURE...29.2 DEGREES AT HERMAN IN BARAGA COUNTY

HIGHEST MONTHLY PRECIPITATION...6.53 INCHES AT IRONWOOD

LOWEST MONTHLY PRECIPITATION...2.35 INCHES AT MANISTIQUE

HIGHEST MONTHLY SNOWFALL...53.6 INCHES AT TWIN LAKES IN HOUGHTON
                            COUNTY

LOWEST MONTHLY SNOWFALL...7.7 INCHES AT WITCH LAKE IN MARQUETTE
                           COUNTY

GREATEST SNOW DEPTH...42 INCHES JUST SOUTH OF GRAND MARAIS IN ALGER
                       COUNTY ON 4/1 AND 4/2

APRIL 2013 FELT MORE LIKE MARCH AS A STUBBORN WINTER WEATHER PATTERN
DOMINATED BY A MEAN UPPER TROUGH OVER EASTERN AND CENTRAL NORTH
AMERICA PERSISTED UNTIL THE LAST WEEK OF THE MONTH. ALTHOUGH THE
APRIL MEAN TEMPERATURE THAT RANGED BETWEEN 29 AND 37 DEGREES WAS 9
TO 13 DEGREES HIGHER THAN OBSERVED IN MARCH...THESE READINGS STILL
ENDED UP 4 TO 6 DEGREES BELOW NORMAL AND AS MUCH AS 8 DEGREES BELOW
AVERAGE AT IRONWOOD...WHERE APRIL 2013 GOES DOWN IN THE RECORD BOOKS
AS THE SECOND COLDEST APRIL SINCE 1900. AT MANY OTHER LOCATIONS...
APRIL 2013 IS NOW AMONG THE TOP FIVE OR TEN COLDEST FOURTH MONTHS ON
RECORD. FOR THE MOST PART...THE DEPARTURE FROM NORMAL OF THE
OBSERVED MAXIMUM TEMPERATURES WAS MOST SIGNIFICANT AND APPROACHED 10
DEGREES BELOW AVERAGE AT SOME PLACES.

ALMOST EVERY DAY IN APRIL WAS COLDER OR EVEN MUCH COLDER THAN NORMAL
THROUGH 4/25. THE CHILL WAS MOST PRONOUNCED ON 4/1 THROUGH 4/3...
4/12 THROUGH 4/14...AND 4/19 THROUGH 4/24...WHEN MEAN DAILY
TEMPERATURES RAN 10 TO AS MUCH AS 20 DEGREES BELOW NORMAL. SOME OF
THE INTERIOR COLD SPOTS REPORTED SUB-ZERO MINIMUM TEMPERATURES ON
4/2 AND 4/3. THE THERMOMETER READ UNDER 10 ABOVE AT AT LEAST A
COUPLE LOCATIONS ON THE MORNINGS OF 4/1 THROUGH 4/3...4/14...AND
EVEN AS LATE AS 4/20 AND 4/21. THE MERCURY FAILED TO TOP 30 AT SOME
PLACES ON SEVERAL DAYS DURING APRIL...INCLUDING 4/1...4/2...4/11...
4/12...4/19 AND 4/20. IN CONTRAST...ALTHOUGH DAYTIME TEMPERATURES
OFTEN CLIMB INTO THE 60S AND 70S IN APRIL...THERE WERE NO MAXIMUMS
OF 60 OR ABOVE UNTIL 4/26...WHEN THE PERSISTENT TROUGH IN THE GREAT
LAKES FINALLY EASED AND BEGAN TO GIVE WAY TO SOME UPPER RIDGING. THE
ARRIVAL OF WARMER AIR AND THE INCREASING SOLAR ANGLE BOOSTED
AFTERNOON HIGHS ON 4/27 THROUGH 4/30 INTO THE 70S AT MANY LOCATIONS
AWAY FROM THE COOLING INFLUENCE OF THE GREAT LAKES. THERE WERE EVEN
SOME 80-DEGREE HIGHS ON 4/30...INCLUDING THE MONTHLY MAXIMUM OF 82
AT WATERSMEET IN GOGEBIC COUNTY AND JUST INLAND FROM ONTONAGON.

SINCE THE DEEP UPPER TROUGH DOMINATED THE FLOW IN THE GREAT LAKES...
APRIL ALSO FEATURED AN ACTIVE WEATHER PATTERN WITH SEVERAL LATE
SEASON WINTER STORMS AND ABOVE TO WELL ABOVE NORMAL PRECIPITATION
AND SNOWFALL OVER MUCH OF UPPER MICHIGAN. MOST PLACES REPORTED 3 TO
6 INCHES OF WATER EQUIVALENT PRECIPITATION IN APRIL...OR UP TO
250-275 PERCENT OF NORMAL. THE HEAVIEST PRECIPITATION FELL OVER THE
WEST...WHERE LOCATIONS FROM IRONWOOD TO ONTONAGON AND HOUGHTON
ENDURED A TOP FIVE WETTEST APRIL AND OVER 6 INCHES OF PRECIPITATION.
AREAS NEAR LAKE MICHIGAN SAW THE LEAST APRIL PRECIPITATION...WITH
ONLY A NEAR-NORMAL 2.35 INCHES FALLING AT MANISTIQUE.

BECAUSE THE CHILLY PATTERN ENSURED A GOOD DEAL OF THE PRECIPITATION
FELL AS SNOW...MONTHLY SNOWFALL WAS ALSO WELL ABOVE AVERAGE...
ESPECIALLY WHERE THE HEAVIER PRECIPITATION WAS REPORTED ACROSS THE
WEST AND NORTH CENTRAL. APRIL TOTALS OVER THE HIGHER TERRAIN IN THIS
AREA TOPPED 40 AND EVEN 50 INCHES. THIS MONTHLY SNOWFALL IN SOME
SPOTS WAS OVER 400 PERCENT OF NORMAL...OR MORE THAN 30 INCHES ABOVE
THE TYPICAL APRIL NUMBERS. THOSE SAME LOCATIONS OVER THE WEST THAT
RECORDED THE HEAVIER PRECIPITATION ALSO EXPERIENCED THE SNOWIEST
FOURTH MONTH ON RECORD IN 2013...INCLUDING AT IRONWOOD...HOUGHTON...
AND ONTONAGON. EVEN THOUGH THE SNOW WAS NOT AS EXCESSIVE FARTHER TO
THE EAST...MANY PLACES EVEN THERE ENDURED A TOP TEN SNOWIEST APRIL
AS WELL.

THE FIRST OF SEVERAL MAJOR WINTER STORMS TO IMPACT UPPER MICHIGAN IN
APRIL BROUGHT SOME HEAVY SNOW TO THE AREA FROM 4/11 INTO 4/13...
DUMPING AS MUCH AS 13.5 INCHES ON IRONWOOD. TOTAL LIQUID EQUIVALENT
PRECIPITATION WAS 1.22 INCHES AT IRONWOOD. ANOTHER MAJOR LOW
PRESSURE SYSTEM THAT CLOSELY FOLLOWED THE FIRST LOW TRACKED FARTHER
WEST THROUGH MINNESOTA ON 4/15 AND DUMPED A WINTRY MIXED BAG OF
PRECIPITATION ON THE U.P. LATE ON 4/14 INTO THE MORNING OF 4/15. THE
HEAVIEST SNOW AND PRECIPITATION FELL CLOSER TO THE LOW PRESSURE
TRACK OVER THE WEST...WHERE UP TO 5 INCHES OF SNOW FELL AT TWIN
LAKES IN HOUGHTON COUNTY AND MOHAWK IN KEWEENAW COUNTY. WATERSMEET
IN GOGEBIC COUNTY LOGGED 1.30 INCHES OF PRECIPITATION DURING THIS
EVENT.

IN THE ACTIVE MID-MONTH PATTERN...ANOTHER SIGNIFICANT LATE SEASON
WINTER STORM STRUCK THE UPPER PENINSULA ON 4/18 INTO 4/20. ONCE
AGAIN...THE HEAVIEST PRECIPITATION AND SNOW FELL OVER THE WEST...
WHERE TOTALS REACHED 2 INCHES OR MORE AND OVER 12 INCHES
RESPECTIVELY AT SOME PLACES. TWIN LAKES IN HOUGHTON COUNTY LED
REPORTING STATIONS WITH AN IMPRESSIVE 21.4 INCHES OF SNOW ON 4/18
INTO 4/20. NORTH WINDS GUSTING AS HIGH AS 55 MPH ON 4/19 OVER THE
KEWEENAW CAUSED BLIZZARD CONDITIONS IN THAT AREA. THE LAST
SIGNIFICANT WINTER STORM OF THE MONTH STRUCK 4/22 INTO 4/23 AS A LOW
PRESSURE SYSTEM TRACKED ACROSS CENTRAL UPPER MICHIGAN. AS HAD BEEN
THE CASE IN RECENT EVENTS...WESTERN UPPER MICHIGAN WAS ON THE COLD
SIDE OF THE LOW TRACK AND THUS PICKED UP THE HEAVIEST SNOW AND WATER
EQUIVALENT PRECIPITATION...UP TO 9.7 INCHES AT IRONWOOD AND OVER AN
INCH AT SEVERAL LOCATIONS RESPECTIVELY BY THE TIME DRIER AIR ARRIVED
DURING THE MORNING ON 4/23.

THE COMBINATION OF THE HEAVY LATE WINTER AND EARLY SPRING SNOW AND
COLD WEATHER ENSURED A DEEP SNOW PACK WOULD LINGER WELL THROUGH THE
MONTH ACROSS MAINLY THE HIGHER TERRAIN OF WESTERN AND NORTH CENTRAL
UPPER MICHIGAN. ATLANTIC MINE IN HOUGHTON COUNTY STILL REPORTED A
SNOW DEPTH OF 40 INCHES AS LATE AS 4/25. THESE LATE EXCESSIVE SNOW
DEPTHS SET RECORDS AT SOME LOCATIONS. FOR INSTANCE...AT THE
MARQUETTE NWS...THE SNOW DEPTH OF 30 INCHES ON 4/25 SET A RECORD FOR
THE LATEST OCCURRENCE OF THAT MUCH SNOW ON THE GROUND. THE RUNOFF
FROM THIS UNSEASONABLY HIGH LATE SEASON SNOW PACK CAUSED BY THE
RAPID WARMUP AT THE END OF APRIL CONTRIBUTED TO SIGNIFICANT WATER
LEVEL RISES ON AREA RIVERS AND STREAMS DURING THE LAST COUPLE OF
DAYS OF THE MONTH...ESPECIALLY OVER THE WEST AND NORTH CENTRAL. SOME
RIVERS TOPPED FLOOD STAGE BY 4/30...AND THIS GENERALLY MINOR
FLOODING WOULD PERSIST INTO MAY.

                     APRIL 2013 MEAN TEMPERATURE

              OBSERVED  NORMAL  DEPARTURE      RECORD      2013 RANK

IRONWOOD        30.9     39.3      -8.4     30.3 /1907/   2ND COLDEST

HOUGHTON        31.9     38.0      -6.1     27.9 /1907/   7TH COLDEST

MARQUETTE NWS   32.4     37.9      -5.5     31.0 /1972/   5TH COLDEST

IRON MOUNTAIN   36.1     41.5      -5.4     31.6 /1907/   7TH COLDEST

MUNISING        33.8     39.0      -5.2     30.1 /1920/  12TH COLDEST

NEWBERRY        35.0     39.9      -4.9     31.9 /1926/  13TH COLDEST

MANISTIQUE      34.3     39.0      -4.7     32.4 /1996/   5TH COLDEST

MARQUETTE CITY  35.6     40.1      -4.5     29.8 /1907/  25TH COLDEST

                       APRIL 2013 PRECIPITATION

              OBSERVED  NORMAL  DEPARTURE      RECORD      2013 RANK

IRONWOOD        6.53     2.64     +3.89     7.91 /1960/   3RD HIGHEST

HOUGHTON        4.86     1.84     +3.02     4.95 /1954/   2ND HIGHEST

MUNISING        4.13     2.20     +1.93     5.47 /1914/  10TH HIGHEST

MARQUETTE NWS   4.76     3.01     +1.75     6.56 /1985/   6TH HIGHEST

MARQUETTE CITY  3.97     2.45     +1.52     6.80 /1914/  15TH HIGHEST

IRON MOUNTAIN   3.69     2.36     +1.33     7.07 /1951/  15TH HIGHEST

NEWBERRY        3.20     2.22     +0.98     5.74 /1960/  12TH HIGHEST

MANISTIQUE      2.35     2.31     +0.04     6.34 /2002/      ****

                          APRIL 2013 SNOWFALL

                                               RECORD
              OBSERVED  NORMAL  DEPARTURE  /OR PREVIOUS/   2013 RANK

IRONWOOD        44.9     11.4     +33.5     43.0 /1928/    NEW RECORD

HOUGHTON        35.1      7.8     +27.3     35.0 /1907/    NEW RECORD

NEWBERRY        23.8      7.1     +16.7     28.0 /1979/   2ND HIGHEST

MARQUETTE NWS   27.6     14.5     +13.1     55.2 /2007/   7TH HIGHEST

MUNISING        17.9      7.6     +10.3     47.4 /2007/   7TH HIGHEST

MANISTIQUE      11.0      2.6      +8.4     16.0 /1996/   4TH HIGHEST

MARQUETTE CITY  13.4      7.5      +5.9     43.4 /1928/      ****

IRON MOUNTAIN    8.0      4.6      +3.4     22.0 /1907/  20TH HIGHEST

**** NOT IN TOP 25
---------------------------------------------------------------------
SOME OTHER TEMPERATURE AND PRECIPITATION OBSERVATIONS ACROSS UPPER
MICHIGAN IN APRIL 2013 INCLUDE:

IRONWOOD...AVERAGE TEMPERATURE 30.9 (8.4 DEGREES BELOW NORMAL)
           PRECIPITATION 6.53 INCHES (3.89 INCH ABOVE NORMAL)
           SNOWFALL 44.9 INCHES (33.5 INCHES ABOVE NORMAL)

ONTONAGON...AVERAGE TEMPERATURE 36.4 (5.5 DEGREES BELOW NORMAL)
 (6 MILES   PRECIPITATION 3.89 INCHES (1.63 INCHES ABOVE NORMAL)
  INLAND)   SNOWFALL 29.5 INCHES (22.6 INCHES ABOVE NORMAL)

ROCKLAND (ONTONAGON COUNTY)...SNOWFALL 41.4 INCHES

GREENLAND (ONTONAGON COUNTY)...AVERAGE TEMPERATURE 34.2 DEGREES
                               PRECIPITATION 5.21 INCHES
                               SNOWFALL 29.5 INCHES

BERGLAND DAM (ONTONAGON COUNTY)...AVERAGE TEMPERATURE 30.7 DEGREES
                                  PRECIPITATION 6.42 INCHES
                                  SNOWFALL 41.3 INCHES

TWIN LAKES (HOUGHTON COUNTY)...PRECIPITATION 6.13 INCHES
                               SNOWFALL 53.6 INCHES

HOUGHTON COUNTY...AVERAGE TEMPERATURE 31.9 (6.1 DEGREES BELOW NORMAL)
 AIRPORT          PRECIPITATION 4.86 INCHES (3.02 INCHES ABOVE NORMAL)
                  SNOWFALL 35.1 INCHES (27.3 INCHES ABOVE NORMAL)

ATLANTIC MINE (HOUGHTON COUNTY)...PRECIPITATION 5.81 INCHES
                                  SNOWFALL 53.0 INCHES


MOHAWK (KEWEENAW COUNTY)...PRECIPITATION 5.85 INCHES
                           SNOWFALL 41.4 INCHES

COPPER HARBOR...AVERAGE TEMPERATURE 32.4 DEGREES

JACOBSVILLE (HOUGHTON COUNTY)...AVERAGE TEMPERATURE 31.2 DEGREES
                                PRECIPITATION 5.17 INCHES
                                SNOWFALL 31.7 INCHES

BARAGA...AVERAGE TEMPERATURE 32.7 DEGREES
         PRECIPITATION 4.60 INCHES
         SNOWFALL 26.0 INCHES

WATTON (BARAGA COUNTY)...AVERAGE TEMPERATURE 31.7 DEGREES
                         PRECIPITATION 5.03 INCHES
                         SNOWFALL 24.2 INCHES

HERMAN (BARAGA COUNTY)...AVERAGE TEMPERATURE 29.2 DEGREES
                         PRECIPITATION 5.28 INCHES
                         SNOWFALL 46.9 INCHES

CLARKSBURG (MARQUETTE COUNTY)...AVERAGE TEMPERATURE 29.9 DEGREES
                                PRECIPITATION 3.83 INCHES
                                SNOWFALL 20.3 INCHES

WITCH LAKE (MARQUETTE COUNTY)...SNOWFALL 7.7 INCHES

BIG BAY (MARQUETTE COUNTY)...AVERAGE TEMPERATURE 33.9 DEGREES
                             PRECIPITATION 5.46 INCHES
                             SNOWFALL 31.0 INCHES

MARQUETTE CITY...AVERAGE TEMPERATURE 35.6 (4.5 DEGREES BELOW NORMAL)
                 PRECIPITATION 3.97 INCHES (1.52 INCHES ABOVE NORMAL)
                 SNOWFALL 13.4 INCHES (5.9 INCHES ABOVE NORMAL)

HARVEY (MARQUETTE COUNTY)...AVERAGE TEMPERATURE 37.1 DEGREES
                            PRECIPITATION 4.26 INCHES
                            SNOWFALL 16.4 INCHES

CHATHAM (ALGER COUNTY)...AVERAGE TEMPERATURE 34.8 DEGREES
                         PRECIPITATION 3.30 INCHES
                         SNOWFALL 13.1 INCHES

MUNISING...AVERAGE TEMPERATURE 33.8 (5.2 DEGREES BELOW NORMAL)
           PRECIPITATION 4.13 INCHES (1.93 INCHES ABOVE NORMAL)
           SNOWFALL 17.9 INCHES (10.3 INCHES ABOVE NORMAL)

NEWBERRY...AVERAGE TEMPERATURE 35.0 (4.9 DEGREES BELOW NORMAL)
           PRECIPITATION 3.20 INCHES (0.98 INCH ABOVE NORMAL)
           SNOWFALL 23.8 INCHES (16.7 INCHES ABOVE NORMAL)

STAMBAUGH (IRON COUNTY)...AVERAGE TEMPERATURE 30.9 DEGREES
                          PRECIPITATION 4.24 INCHES
                          SNOWFALL 10.0 INCHES

AMASA (IRON COUNTY)...PRECIPITATION 3.67 INCHES
                      SNOWFALL 13.5 INCHES

IRON MOUNTAIN...AVERAGE TEMPERATURE 36.1 (5.4 DEGREES BELOW NORMAL)
                PRECIPITATION 3.69 INCHES (1.33 INCHES ABOVE NORMAL)
                SNOWFALL 8.0 INCHES (3.4 INCHES ABOVE NORMAL)

NORWAY (DICKINSON COUNTY)...AVERAGE TEMPERATURE 36.5 DEGREES
                            PRECIPITATION 3.44 INCHES
                            SNOWFALL 10.4 INCHES

GLADSTONE (DELTA COUNTY)...PRECIPITATION 3.24 INCHES
                           SNOWFALL 10.3 INCHES

GARDEN CORNERS (DELTA COUNTY)...AVERAGE TEMPERATURE 34.9 DEGREES
                                PRECIPITATION 2.82 INCHES
                                SNOWFALL 9.6 INCHES

MANISTIQUE...AVERAGE TEMPERATURE 34.3 (4.7 DEGREES BELOW NORMAL)
             PRECIPITATION 2.35 INCHES (0.04 INCH ABOVE NORMAL)
             SNOWFALL 11.0 INCHES (8.4 INCHES ABOVE NORMAL)

                        APRIL WEATHER SUMMARY

MORE TO COME LATER.

                           JUNE FORECAST

THE CLIMATE PREDICTION CENTER (CPC) IS FORECASTING AN EQUAL CHANCE
OF AN ABOVE AND BELOW NORMAL MONTHLY MEAN TEMPERATURE AND ABOVE AND
BELOW NORMAL MONTHLY PRECIPITATION OVER ALL OF UPPER MICHIGAN IN JUNE
2013.

                          JUNE CLIMATOLOGY

AVERAGE TEMPERATURES CONTINUE TO RISE DURING JUNE AS DAILY POSSIBLE
SUNSHINE PEAKS AT 950 MINUTES AROUND THE SUMMER SOLSTICE...WHICH
OCCURS THIS YEAR AT 1:04 AM EDT ON 6/20. AT THE MARQUETTE NWS...THE
AVERAGE TEMPERATURE OF 56 ON 6/1 INCREASES TO 64 BY 6/30. THE JUNE
AVERAGE TEMPERATURE AT MOST PLACES OVER UPPER MICHIGAN IS ABOUT NINE
DEGREES HIGHER THAN IN MAY. AN INCREASE IN CONVECTIVE ACTIVITY FROM
MAY TO JUNE ALSO PUSHES AVERAGE MONTHLY PRECIPITATION UP AT MOST
LOCATIONS. SLOW MOVING THUNDERSTORMS CAN DROP TORRENTIAL RAIN...AND
12.26 INCHES OF RAIN DELUGED THE MARQUETTE NWS IN JUNE 1968. THE
HIGHEST RECORD DAILY RAINFALL AMOUNT AT ALL STATIONS IN JUNE EXCEEDS
TWO INCHES.

EVEN THOUGH AVERAGE TEMPERATURES THROUGH THE MONTH SHOW A STEADY
WARMING TREND...FROST REMAINS A THREAT EVEN LATE IN JUNE. THE LATEST
OCCURRENCE OF FREEZING TEMPERATURES AT THE MARQUETTE NWS IS 6/22...
AND AS LATE AS 6/26 AT NEWBERRY. SHELTERED COLD SPOTS IN THE
INTERIOR CAN HAVE FROST THROUGH 6/30. ALTHOUGH ACCUMULATING SNOW IS
RARE...IT CAN OCCUR EARLY IN THE MONTH. ON 6/2/98...HIGHER TERRAIN
AREAS IN NORTH CENTRAL UPPER MICHIGAN RECORDED A SLUSHY INCH OF
SNOW.

THE COOLEST JUNE IN RECENT MEMORY WAS IN 2004...WHEN TEMPERATURES
AVERAGED 2 TO 4 DEGREES BELOW NORMAL. BUT JUNE 1982 SAW EVEN LOWER
TEMPERATURES...ABOUT SIX OR SEVEN DEGREES BELOW NORMAL. IN FACT...
JUNE 1982 IS THE COOLEST SIXTH MONTH ON RECORD AT MUNISING (MONTHLY
AVERAGE TEMPERATURE 52.9)...IRONWOOD (54.4)...MARQUETTE CITY
(54.4)...AND ONTONAGON (56.2). JUNE 1982 LANDED IN THE LIST OF TOP
TEN COOLEST AT MOST LOCATIONS.

ALTHOUGH EARLY SPRING CHILL CAN OCCUR IN JUNE...BLISTERING SUMMER
HOT SPELLS ARE ALSO POSSIBLE. RECORD HIGH TEMPERATURES AT ALL
REPORTING STATIONS ARE BETWEEN 94 AND 100. AT ALMOST EVERY
LOCATION...JUNE 2005 IS AMONG THE TOP TEN WARMEST ON RECORD. A
SWELTERING HEAT WAVE WITH DAYTIME HIGHS IN THE 90S AWAY FROM THE
COOLING INFLUENCE OF THE GREAT LAKES DURING PART OF THE FOURTH WEEK
OF THAT MONTH PUSHED AVERAGE MONTHLY TEMPERATURES 3 TO 6 DEGREES
ABOVE NORMAL. AT ONTONAGON (67.9) AND MANISTIQUE (64.0)...JUNE 2005
IS THE WARMEST ON RECORD. JUNE 1995 WAS ALSO VERY WARM...WITH MEAN
TEMPERATURES AVERAGING AS MUCH AS 6 TO 7 DEGREES ABOVE NORMAL. IN
FACT...THAT JUNE IS THE WARMEST ON RECORD AT THE MARQUETTE NWS
(66.3)...THE HOUGHTON COUNTY AIRPORT (66.1)...AND MUNISING (65.1).
ONLY AT IRONWOOD DID JUNE 1995 NOT END UP IN THE TOP TEN WARMEST. A
TORRID HEATWAVE AROUND MID MONTH PUSHED THE MERCURY UP TO THE
CENTURY MARK AT IRON MOUNTAIN ON 6/19/95. THE 78.6-DEGREE AVERAGE
TEMPERATURE AT IRON MOUNTAIN BETWEEN 6/18 AND 6/25 IN 1995 PUTS THAT
EIGHT-DAY STRETCH IN THE RECORD BOOK AS THE WARMEST WEEK IN JUNE
EVER OBSERVED THERE. THE HIGH TEMPERATURE EXCEEDED 90 ON SEVEN OF
THOSE EIGHT DAYS.

                  OUTLOOK FOR SUMMER INTO EARLY 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
OVER ALL OF UPPER MICHIGAN IN JULY THROUGH SEPTEMBER 2013.

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





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