Climatological Report (Monthly)
Issued by NWS Marquette, MI

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000
CXUS53 KMQT 202221
CLMMQT

CLIMATE REPORT...FINAL
NATIONAL WEATHER SERVICE MARQUETTE MI
621 PM EDT FRI MAY 20 2016

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

...THE MARQUETTE MI CLIMATE SUMMARY FOR THE MONTH OF APRIL 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              92   04/22/1980
 LOW               -9   04/06/2003
HIGHEST            78   04/17        46      32       68  04/16
                                                          04/12
LOWEST             -7   04/05        27     -34       11  04/04
AVG. MAXIMUM     43.5              47.8    -4.3     47.0
AVG. MINIMUM     24.2              28.0    -3.8     28.4
MEAN             33.9              37.9    -4.0     37.7
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      8               2.6     5.4        2
DAYS MIN <= 32     26              21.1     4.9       24
DAYS MIN <= 0       1               0.1     0.9        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         6.56   1985
 MINIMUM         0.90   1998
TOTALS           3.83              3.01    0.82     2.50
DAILY AVG.       0.13              0.10    0.03     0.08
DAYS >= .01        17              12.2     4.8        9
DAYS >= .10         8               6.9     1.1        5
DAYS >= .50         2               1.7     0.3        1
DAYS >= 1.00        1               0.6     0.4        1
GREATEST
 24 HR. TOTAL    1.07   04/06 TO 04/07

SNOWFALL (INCHES)
RECORDS
 TOTAL           55.2   2007
                        0
                        0
TOTALS           40.9              14.5    26.4     13.1
SINCE 7/1       159.8             201.8   -42.0    178.4
SNOWDEPTH AVG.      7                11      -4        5
DAYS >= 1.0        10               3.3     6.7        2
GREATEST
 SNOW DEPTH        20   04/10                         17  04/01
                        04/09
 24 HR TOTAL      9.9   04/05 TO 04/06

DEGREE_DAYS
HEATING TOTAL     927               815     112      813
 SINCE 7/1       7790              8702    -912     9373
COOLING TOTAL       0                 1      -1        0
 SINCE 1/1          0                 1      -1        0
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              MM
HIGHEST WIND SPEED/DIRECTION    MM        DATE   MM
HIGHEST GUST SPEED/DIRECTION    38/315    DATE  04/01

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                6     FREEZING RAIN              0
LT FREEZING RAIN          3     HAIL                       0
HEAVY SNOW                1     SNOW                       4
LIGHT SNOW               15     SLEET                      1
FOG                       4     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.

&&

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

...VERY COOL...
...EIGHTH COOLEST APRIL AT MANISTIQUE...
...TENTH COOLEST APRIL AT THE MARQUETTE NWS...

...WELL ABOVE NORMAL SNOWFALL...
...SECOND HIGHEST APRIL SNOWFALL AT MANISTIQUE...
...THIRD HIGHEST APRIL SNOWFALL AT THE MARQUETTE NWS...
...THIRD HIGHEST APRIL SNOWFALL AT NEWBERRY...
...SIXTH HIGHEST APRIL SNOWFALL AT IRONWOOD...

...ABOVE NORMAL PRECIPITATION...

APRIL CLIMATE STATISTICS FOR THE MARQUETTE NWS IN NEGAUNEE TOWNSHIP

                                    NORMAL   DEPARTURE
AVERAGE TEMPERATURE         33.9     37.9  MINUS    4.0
AVERAGE HIGH TEMPERATURE    43.5     47.8  MINUS    4.3
AVERAGE LOW TEMPERATURE     24.2     28.0  MINUS    3.8
HEATING DEGREE DAYS          927      815   PLUS    112
COOLING DEGREE DAYS            0        1  MINUS      1
TOTAL PRECIPITATION         3.83     3.01   PLUS   0.82
TOTAL SNOWFALL              40.9     14.5   PLUS   26.4

HIGHEST TEMPERATURE:                    78 ON 4/17
LOWEST TEMPERATURE:                     -7 ON 4/5
GREATEST CALENDAR DAY PRECIPITATION:  1.05 ON 4/25
GREATEST 24 HOUR PRECIPITATION:       1.07 ON 4/6-4/7
GREATEST CALENDAR DAY SNOWFALL:        8.9 ON 4/6
GREATEST 24 HOUR SNOWFALL              9.9 ON 4/5-4/6
GREATEST SNOW DEPTH                     20 ON 4/9 AND 4/10
PEAK WIND SPEED: 38 MPH FROM THE NORTHWEST ON 4/1

DAILY RECORD SNOWFALL ON 4/2...7.7 /OLD RECORD 6.3...1990/
DAILY RECORD LOW MAXIMUM TEMPERATURE ON 4/2...21 /23...1971/
DAILY RECORD SNOWFALL ON 4/3...7.2 /7.0...1973/
DAILY RECORD LOW MINIMUM TEMPERATURE ON 4/3...1 /4...1962&64/
DAILY RECORD LOW MAXIMUM TEMPERATURE ON 4/3...21 /22...1971/
DAILY RECORD LOW MINIMUM TEMPERATURE ON 4/5...-7 /-2...1972/
DAILY RECORD SNOWFALL ON 4/6...8.9 /6.7...2007/
DAILY RECORD HIGH MAXIMUM TEMPERATURE ON 4/17...78 /73...2002&09/
DAILY RECORD PRECIPITATION ON 4/25...1.05 /0.74...1996/
THIRD HIGHEST APRIL SNOWFALL...40.9 /RECORD 55.2...2007/
TENTH LOWEST APRIL MEAN TEMPERATURE...33.9 /RECORD 31.0...1972/
---------------------------------------------------------------------
GREAT LAKES WATER LEVELS (FEET/METERS ABOVE MEAN SEA LEVEL)

                            LAKE SUPERIOR  LAKE MICHIGAN-HURON
4/01/16 DAILY MEAN          601.97/183.48     579.78/176.72
4/30/16 DAILY MEAN          602.05/183.51     580.06/176.80
AVG MAR 2016 DAILY MEAN     601.91/183.46     579.42/176.61
AVG APR 2015 DAILY MEAN     601.84/183.44     579.15/176.53
LONG TERM APR DAILY MEAN    601.21/183.25     578.67/176.38
MAXIMUM APR DAILY MEAN      602.62/183.68     581.46/177.23
                                (1986)           (1986)
MINIMUM APR DAILY MEAN      599.48/182.72     576.15/175.61
                                (1926)           (1964)

...GREAT LAKES WATER LEVELS RISE AND REMAIN WELL ABOVE NORMAL IN
APRIL...

GREAT LAKES WATER LEVELS CONTINUED TO RISE DURING APRIL DUE TO
RUNOFF FROM SNOW MELT AND RECENT ABOVE NORMAL PRECIPITATION. AT THE
END OF APRIL...WATER LEVELS ON LAKE SUPERIOR WERE ABOUT 10 INCHES
ABOVE NORMAL AND 2 TO 3 INCHES ABOVE THE LEVEL OBSERVED IN APRIL
2015. THE LEVEL ON LAKES MICHIGAN AND HURON WAS 16 TO 17 INCHES
ABOVE AVERAGE ON 4/30 AND ALMOST 11 INCHES HIGHER THAN IN APRIL 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.
---------------------------------------------------------------------
                       APRIL CLIMATE HIGHLIGHTS

HIGHEST REPORTED TEMPERATURE...83 AT RANDVILLE IN DICKINSON COUNTY
                                COUNTY ON 4/17

LOWEST REPORTED TEMPERATURE...-12 AT CLARKSBURG/CHAMPION IN MARQUETTE
                               COUNTY ON 4/5

HIGHEST AVERAGE TEMPERATURE...38.8 DEGREES AT IRON MOUNTAIN

LOWEST AVERAGE TEMPERATURE...32.9 DEGREES AT HERMAN IN BARAGA COUNTY
                              AND CLARKSBURG/CHAMPION

HIGHEST MONTHLY PRECIPITATION...4.10 INCHES AT IRONWOOD

LOWEST MONTHLY PRECIPITATION...2.19 INCHES AT JACOBSVILLE IN HOUGHTON
                                COUNTY

HIGHEST MONTHLY SNOWFALL...30.7 INCHES AT IRONWOOD

LOWEST MONTHLY SNOWFALL...8.3 INCHES AT BARAGA

GREATEST SNOW DEPTH...33 INCHES AT PAINESDALE IN HOUGHTON COUNTY
                       ON 4/12

UPPER MICHIGAN WAS DOMINATED BY A CHILLY NORTHWEST FLOW OF CANADIAN
AIR UNDER A DEEP UPPER TROUGH OVER CENTRAL AND EASTERN NORTH AMERICA
THROUGH MOST OF THE FIRST TWO WEEKS OF APRIL, RESULTING IN WEATHER
MORE TYPICAL OF LATE WINTER THAN EARLY SPRING. AT LEAST ONE LOCATION
IN UPPER MICHIGAN SAW THE THERMOMETER DROP BELOW ZERO ON 4/3, 4/5
AND 4/9. ON A NUMBER OF DAYS, MAXIMUM TEMPERATURES HELD IN THE 20S
AT MANY PLACES AND MEAN DAILY TEMPERATURES RAN AS MUCH AS 10 TO 20
DEGREES BELOW NORMAL. ALTHOUGH THERE WAS A DRAMATIC CHANGE TO A
WARMER WEATHER PATTERN FEATURING AN UPPER RIDGE OVER THE EAST HALF
OF NORTH AMERICA AROUND MID-MONTH, THE TROUGH AND COLDER WEATHER
RETURNED THE LAST WEEK OF APRIL. SO DESPITE A VERY WARM WEEK AT MID-
MONTH THAT FEATURED SOME RECORD HIGH MAXIMUM TEMPERATURES UNDER THE
RIDGE, INCLUDING SOME 80-DEGREE MAXIMUMS ON 4/16 AND 4/17, MEAN
MONTHLY TEMPERATURES THAT ENDED UP BETWEEN ABOUT 33 AND 39 DEGREES
AVERAGED 2 TO 4 DEGREES BELOW NORMAL. APRIL 2016 IS NOW AMONG THE
TOP TEEN COOLEST APRILS AT SOME LOCATIONS IN UPPER MICHIGAN. APRIL
ENDED UP ONLY ABOUT 4 TO 7 DEGREES WARMER THAN MARCH EVEN THOUGH THE
MEAN APRIL TEMPERATURE IS 13 TO 15 DEGREES HIGHER THAN THE MARCH
AVERAGE.

WHEN THE DEEP UPPER TROUGH DOMINATED THE FIRST TWO WEEKS OF THE
MONTH, SEVERAL LOW PRESSURE SYSTEMS IMPACTED UPPER MICHIGAN,
RESULTING IN FREQUENT PRECIPITATION EPISODES. ALTHOUGH DRIER WEATHER
PREVAILED WHEN THE UPPER RIDGE BUILT OVER THE AREA IN MID-APRIL,
ANOTHER MOISTURE-LADEN LOW PRESSURE SYSTEM IMPACTED THE UPPER GREAT
LAKES ON 4/24 INTO 4/25, BRINGING A ROUND OF HEAVY RAIN. SO, APRIL
PRECIPITATION RAN ABOVE NORMAL EVERYWHERE TO WELL ABOVE NORMAL AT
SOME LOCATIONS. AS MUCH AS 4.10 INCHES FELL AT IRONWOOD, A LITTLE
OVER 150 PERCENT OF THE APRIL AVERAGE.

THE PRECIPITATION THAT OCCURRED THE FIRST TWO WEEKS OF APRIL FELL
DURING THE PERIOD OF UNSEASONABLY COLD WEATHER, SO THE BULK OF THIS
FELL IN THE FORM OF SNOW. ALTHOUGH THERE WAS LITTLE IF ANY SNOW
AFTER MID-APRIL, MONTHLY TOTALS ENDED UP WELL ABOVE NORMAL ALMOST
EVERYWHERE AND WERE AMONG THE TOP FIVE HIGHEST ON RECORD FOR ANY
APRIL AT SOME SPOTS. THE 40.9 INCHES THAT ACCUMULATED AT THE
MARQUETTE NWS IS THE THIRD HIGHEST APRIL TOTAL ON RECORD FOR THAT
LOCATION AND ALMOST THREE TIMES THE APRIL AVERAGE.
---------------------------------------------------------------------
   ...SEPTEMBER THROUGH APRIL CLIMATE STATS FOR UPPER MICHIGAN...

  ...TOP FIVE WARMEST AND BELOW NORMAL SNOWFALL AT MOST PLACES...
          ...ABOVE NORMAL PRECIPITATION AT MOST PLACES...

                         AVERAGE TEMPERATURE

               OBSERVED NORMAL DEPARTURE    RECORD           RANK

HOUGHTON         35.3    30.6    +4.7   35.9 /2011-12/    2ND WARMEST

IRON MOUNTAIN    36.1    31.7    +4.4   36.7 /2011-12/    2ND WARMEST

MARQUETTE NWS    33.6    29.7    +3.9   35.0 /2011-12/    2ND WARMEST

NEWBERRY         36.3    32.5    +3.8   37.7 /2011-12/    2ND WARMEST

MANISTIQUE       36.1    33.5    +2.6   36.6 /2011-12/    2ND WARMEST

MUNISING         36.0    32.9    +3.1   36.7 /2011-12/    3RD WARMEST

IRONWOOD         33.8    29.5    +4.3   35.0 /2011-12/    5TH WARMEST

MARQUETTE CITY   37.3    34.2    +3.1   40.1 /1877-78/    6TH WARMEST

                            PRECIPITATION

                                         /OR PREVIOUS/
               OBSERVED NORMAL DEPARTURE    RECORD           RANK

IRONWOOD        30.49   20.67    +9.82  28.27 /1926-27/    RECORD
                                                           HIGHEST

MANISTIQUE      24.04   17.73    +6.31  26.25 /1978-79/   3RD HIGHEST

IRON MOUNTAIN   19.84   16.49    +3.35  22.90 /1995-96/  10TH HIGHEST

MUNISING        27.55   25.36    +2.19  34.89 /1978-79/  13TH HIGHEST

NEWBERRY        24.90   22.29    +2.61  37.37 /2001-02/  16TH HIGHEST

HOUGHTON        22.63   17.81    +4.82  35.33 /1985-86/      ****

MARQUETTE CITY  19.60   18.47    +1.13  30.89 /1881-82/      ****

MARQUETTE NWS   23.35   23.90    -0.55  14.31 /1963-64/      ****

                               SNOWFALL

               OBSERVED NORMAL DEPARTURE    RECORD           RANK

MANISTIQUE        56.2    73.0   -16.8   24.8 /1901-02/   12TH LOWEST

IRON MOUNTAIN     44.2    57.7   -13.5   20.2 /1904-05/   15TH LOWEST

MARQUETTE NWS    159.8   201.8   -42.0   68.2 /1962-63/   20TH LOWEST

MARQUETTE CITY    82.3   116.6   -34.3   51.9 /2011-12/   20TH LOWEST

HOUGHTON         198.8   206.7    -7.9   81.3 /1930-31/      ****

MUNISING         153.4   161.0    -7.6   48.0 /1911-12/      ****

IRONWOOD         186.9   186.3    +0.6  298.1 /2000-01/      ****

NEWBERRY         146.2   133.1   +13.1  200.4 /2000-01/      ****

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

IRONWOOD...AVERAGE TEMPERATURE 37.4 /1.9 DEGREES BELOW NORMAL/
           PRECIPITATION 4.10 INCHES /1.46 INCHES ABOVE NORMAL/
           SNOWFALL 30.7 INCHES /19.3 INCHES ABOVE NORMAL/

WATERSMEET (GOGEBIC COUNTY)...PRECIPITATION 3.04 INCHES
                              SNOWFALL 11.3 INCHES

ONTONAGON...SNOWFALL 11.5 INCHES

GREENLAND (ONTONAGON COUNTY)...AVERAGE TEMPERATURE 37.8 DEGREES
                               PRECIPITATION 2.76 INCHES
                               SNOWFALL 15.1 INCHES

HOUGHTON COUNTY...AVERAGE TEMPERATURE 35.9 /2.1 DEGREES BELOW NORMAL/
 AIRPORT          PRECIPITATION 2.20 INCHES /0.36 INCH ABOVE NORMAL/
                  SNOWFALL 15.1 INCHES /7.3 INCHES ABOVE NORMAL/

ATLANTIC MINE (HOUGHTON COUNTY)...PRECIPITATION 2.94 INCHES
                                  SNOWFALL 24.0 INCHES

PAINESDALE (HOUGHTON COUNTY)...SNOWFALL 29.7 INCHES

COPPER HARBOR...AVERAGE TEMPERATURE 35.7 DEGREES

JACOBSVILLE (HOUGHTON COUNTY)...AVERAGE TEMPERATURE 33.5 DEGREES
                                PRECIPITATION 2.19 INCHES
                                SNOWFALL 14.0 INCHES

BARAGA...PRECIPITATION 2.47 INCHES
         SNOWFALL 8.3 INCHES

HERMAN (BARAGA COUNTY)...AVERAGE TEMPERATURE 32.9 DEGREES
                         PRECIPITATION 3.28 INCHES
                         SNOWFALL 26.9 INCHES

CLARKSBURG (MARQUETTE COUNTY)...AVERAGE TEMPERATURE 32.9 DEGREES
                                PRECIPITATION 2.67 INCHES
                                SNOWFALL 27.1 INCHES

BIG BAY (MARQUETTE COUNTY)...AVERAGE TEMPERATURE 35.3 DEGREES
                             PRECIPITATION 3.30 INCHES
                             SNOWFALL 18.4 INCHES

MARQUETTE CITY...AVERAGE TEMPERATURE 36.0 /4.1 DEGREES BELOW NORMAL/
                 PRECIPITATION 2.77 INCHES /0.32 INCH ABOVE NORMAL/
                 SNOWFALL 16.5 INCHES /9.0 INCHES ABOVE NORMAL/

CHATHAM (ALGER COUNTY)...AVERAGE TEMPERATURE 35.0 DEGREES
                         PRECIPITATION 3.21 INCHES
                         SNOWFALL 17.3 INCHES

MUNISING...AVERAGE TEMPERATURE 35.2 /3.8 DEGREES BELOW NORMAL/
           PRECIPITATION 2.96 INCHES /0.76 INCH ABOVE NORMAL/
           SNOWFALL 13.5 INCHES /5.9 INCHES ABOVE NORMAL/

NEWBERRY...AVERAGE TEMPERATURE 35.7 /4.2 DEGREES BELOW NORMAL/
           PRECIPITATION 3.41 INCHES /1.19 INCHES ABOVE NORMAL/
           SNOWFALL 22.4 INCHES /15.3 INCHES ABOVE NORMAL/

STAMBAUGH (IRON COUNTY)...AVERAGE TEMPERATURE 35.0 DEGREES
                          PRECIPITATION 3.23 INCHES
                          SNOWFALL 10.4 INCHES

AMASA (IRON COUNTY)...AVERAGE TEMPERATURE 36.6 DEGREES
                      PRECIPITATION 3.06 INCHES
                      SNOWFALL 13.8 INCHES

FORD AIRPORT...AVERAGE TEMPERATURE 37.9 DEGREES
 NEAR IRON MOUNTAIN

IRON MOUNTAIN...AVERAGE TEMPERATURE 38.8 /2.7 DEGREES BELOW NORMAL/
                PRECIPITATION 2.64 INCHES /0.28 INCH ABOVE NORMAL/
                SNOWFALL 12.5 INCHES /7.9 INCHES ABOVE NORMAL/

NORWAY (DICKINSON COUNTY)...AVERAGE TEMPERATURE 38.5 DEGREES
                            PRECIPITATION 3.39 INCHES
                            SNOWFALL 14.9 INCHES

MENOMINEE...PRECIPITATION 3.40 INCHES

ESCANABA...SNOWFALL 9.7 INCHES

GLADSTONE (DELTA COUNTY)...PRECIPITATION 3.46 INCHES
                           SNOWFALL 22.3 INCHES

GARDEN CORNERS (DELTA COUNTY)...AVERAGE TEMPERATURE 36.3 DEGREES
                                PRECIPITATION 2.96 INCHES
                                SNOWFALL 16.2 INCHES

COOKS (SCHOOLCRAFT COUNTY)...PRECIPITATION 3.06 INCHES
                             SNOWFALL 16.7 INCHES

MANISTIQUE...AVERAGE TEMPERATURE 34.8 /4.0 DEGREES BELOW NORMAL/
             PRECIPITATION 3.11 INCHES /0.72 INCH ABOVE NORMAL/
             SNOWFALL 14.0 INCHES /11.4 INCHES ABOVE NORMAL/

                         APRIL WEATHER SUMMARY

NORTHWEST WINDS GUSTING TO 30 TO 40 MPH FOLLOWING A LOW PRESSURE
TROUGH PASSAGE THAT DREW ENOUGH COLD AIR INTO THE UPPER LAKES TO
CAUSE SOME LAKE EFFECT SNOW SHOWERS ON 4/1 WAS NO APRIL FOOLS DAY
JOKE. BY THE TIME THE SNOW SHOWERS DIMINISHED EARLY ON 4/2, ATLANTIC
MINE AND PAINESDALE IN HOUGHTON COUNTY REPORTED 6.5 INCHES OF SNOW.
A LOCATION NEAR GRAND MARAIS IN ALGER COUNTY ALSO PICKED UP 5 INCHES
OF THE WHITE STUFF. MEAN DAILY TEMPERATURES ON 4/1 AVERAGED 5 TO 10
DEGREES BELOW NORMAL.

A PAIR OF ALBERTA CLIPPER-TYPE LOW PRESSURE SYSTEMS SLIDING
SOUTHEAST THROUGH THE UPPER MIDWEST ON 4/2 AND 4/3 BROUGHT PERIODS
OF MODERATE TO LOCALLY HEAVY SNOW TO PORTIONS OF UPPER MICHIGAN ON
BOTH THOSE DAYS. ON 4/2, THERE WAS A WIDESPREAD 2 TO 6 INCHES OF THE
WHITE STUFF ACROSS MAINLY THE NORTH HALF, WITH AS MUCH AS 8 INCHES
OVER THE HIGHER TERRAIN OF THE NORTH CENTRAL NEAR NEGAUNEE IN
MARQUETTE COUNTY. MOST PLACES OVER THE SOUTH CENTRAL PICKED UP AN
INCH OR LESS. THERE WERE SOME RECORD LOW MAXIMUM TEMPERATURES IN THE
20S ON 4/2, INCLUDING A 19-DEGREE READING AT HERMAN IN BARAGA
COUNTY. GUSTY NORTH WINDS TO 35 MPH ADDED TO THIS CHILL AND ALSO
CAUSED SOME BLOWING AND DRIFTING SNOW. A TRAILING HIGH PRESSURE
RIDGE PASSING THROUGH THE AREA CAUSED CLEARING SKIES AND DIMINISHING
WINDS, WHICH ALLOWED THE MERCURY TO DIP AS LOW AS 1 BELOW ZERO AT
CLARKSBURG/CHAMPION EARLY ON 4/3. THE DAY ON 4/2 ENDED UP ABOUT 15
DEGREES COLDER THAN NORMAL.

THIS PERIOD OF DRY WEATHER WAS A BRIEF ONE AS THE SECOND CLIPPER LOW
PRESSURE SYSTEM QUICKLY MOVED IN ON 4/3. THE HEAVIEST SNOW ON 4/3
FELL ALONG AN AXIS FROM THE KEWEENAW TO ESCANABA AND MANISTIQUE,
WHERE AS MUCH AS 6 TO 8 INCHES ACCUMULATED. MOST PLACES PICKED UP AT
LEAST 2 INCHES OF SNOW DURING THIS EVENT EXCEPT OVER THE FAR WEST,
WHICH MISSED OUT ON THE HEAVIEST PRECIPITATION. SOME PLACES SAW SOME
RECORD LOW MAXIMUM TEMPERATURES IN THE 20S AGAIN ON 4/3. THE FEED OF
UNSEASONABLY COLD AIR CONTINUED ON 4/4 AFTER THE CLIPPER TRACKED TO
THE EAST AND CAUSED SOME LIGHT LAKE EFFECT SNOW SHOWERS. THE MERCURY
AVERAGED ABOUT 20 DEGREES BELOW NORMAL ON 4/3 AND 4/4.

THERE WAS A BRIEF PERIOD OF DRY WEATHER FROM LATE ON 4/4 THROUGH 4/5
ASSOCIATED WITH A PASSING HIGH PRESSURE RIDGE. THE MERCURY DIPPED
BELOW ZERO AT A NUMBER OF THE INTERIOR COLD SPOTS EARLY ON 4/5 AND
ALL THE WAY TO THE MONTHLY MINIMUM OF -12 AT CLARKSBURG/CHAMPION IN
MARQUETTE COUNTY.  THANKS TO THIS COLD START, TEMPERATURES ON 4/5
RAN 15 TO 20 DEGREES BELOW AVERAGE. THEN A LOW PRESSURE SYSTEM
MOVING THROUGH THE CENTRAL GREAT LAKES BROUGHT A WIDESPREAD MODERATE
TO HEAVY SNOW TO UPPER MICHIGAN THAT WAS MIXED WITH RAIN OVER THE
SOUTH CENTRAL ON 4/6. MOST LOCATIONS PICKED UP 4 TO 10 INCHES OF WET
SNOW AND 0.50 TO 1.00 INCHES OF WATER EQUIVALENT PRECIPITATION. THE
MARQUETTE NWS OFFICE NEAR NEGAUNEE IN MARQUETTE COUNTY LED REPORTING
STATIONS WITH 12.2 INCHES OF SNOW AND 1.20 INCHES OF LIQUID
EQUIVALENT. SOME OTHER NOTABLE REPORTS DURING THE 4/6 EVENT INCLUDE
12.0 INCHES OF SNOW AT CLARKSBURG/CHAMPION AND 1.06 INCHES OF
PRECIPITATION AT GARDEN CORNERS IN DELTA COUNTY. THE THERMOMETER
AVERAGED ABOUT 5 DEGREES BELOW NORMAL ON 4/6.

AFTER A MAINLY DRY DAY ON 4/7, ANOTHER QUICK-MOVING ALBERTA CLIPPER
LOW PRESSURE SYSTEM BROUGHT MORE SNOW TO MAINLY FAR WESTERN UPPER
MICHIGAN ON 4/8 THAT WAS FOLLOWED BY A PERIOD OF LAKE EFFECT SNOW
THAT CONTINUED INTO 4/9 ACROSS THE NORTH WIND SNOW BELTS NEAR LAKE
SUPERIOR. IRONWOOD REPORTED A TOTAL OF 16.0 INCHES OF SNOW DURING
THIS EARLY SPRING WINTER WEATHER EVENT. SOME LOCATIONS IN MARQUETTE
COUNTY PICKED UP 6 INCHES OR MORE OF SNOW, INCLUDING A TOTAL OF 12
INCHES AT HARVEY. HOWEVER, THE HEAVIER SNOW WAS LOCALIZED AS MOST
OTHER PLACES AWAY FROM THE FAR WEST AND NORTH CENTRAL SAW NO MORE
THAN 2 TO 3 INCHES OF THE WHITE STUFF ON 4/8 INTO 4/9. SINCE SKIES
CLEARED EARLIER OVER WESTERN UPPER MICHIGAN ON 4/9, THE THERMOMETER
READ AS LOW AS -5 AT STAMBAUGH IN IRON COUNTY AT SUNRISE. MEAN DAILY
TEMPERATURES ON 4/7 THROUGH 4/9 AVERAGED 10 TO 15 DEGREES BELOW
NORMAL.

SOUTH WINDS GUSTING AS HIGH AS 30 TO 35 MPH ON THE SOUTHERN FLANK OF
LOW PRESSURE TRACKING THROUGH ONTARIO ON 4/10 DREW MOISTER AIR INTO
EASTERN UPPER MICHIGAN, WHERE AS MUCH AS 4 TO 5 INCHES OF SNOW FELL
AT SOME PLACES AROUND NEWBERRY. ONCE THE LOW SHIFTED TO THE EAST ON
4/11, MUCH COLDER AIR FOLLOWED INTO THE UPPER LAKES ON THE HEELS OF
NORTHWEST WINDS GUSTING AS HIGH 35 TO 45 MPH. THE INFLUX OF COLD AIR
RESULTED IN LAKE EFFECT SNOW SHOWERS THAT DROPPED AS MUCH AS 4 TO 7
INCHES OF SNOW AT SOME PLACES OVER THE HIGHER TERRAIN OF THE
NORTHWEST HALF OF UPPER MICHIGAN ON 4/11 INTO 4/12. THE DAYS ON 4/10
THROUGH 4/12 WERE 5 TO 10 DEGREES COLDER THAN NORMAL.

THE FINAL EPISODE OF SIGNIFICANT WINTER WEATHER IN APRIL OCCURRED
FROM THE LATE EVENING ON 4/12 INTO THE MORNING ON 4/13. A QUICK
MOVING ALBERTA CLIPPER LOW PRESSURE SYSTEM MOVING THROUGH THE UPPER
MIDWEST CAUSED 1 TO 3 INCHES OF SNOW TO ACCUMULATE NEAR THE
WISCONSIN BORDER. THE RETURN OF SOME SUNSHINE BY THE AFTERNOON ON
4/13 ALLOWED THE MEAN DAILY TEMPERATURE TO MODERATE TO ABOUT 5
DEGREES BELOW AVERAGE.

AFTER THAT PRECIPITATION DIMINISHED, THE BUILDING UPPER RIDGE IN
CENTRAL NORTH AMERICA BROUGHT A CHANGE TO A WARMER AND DRIER WEATHER
PATTERN THAT FEATURED CLEAR TO PARTLY CLOUDY SKIES ON 4/14 THROUGH
4/17. THE MEAN DAILY TEMPERATURE ROSE FROM 5 TO 10 DEGREES ABOVE
NORMAL ON 4/14 TO ABOUT 15 DEGREES ABOVE AVERAGE ON 4/15 AND TO AS
MUCH AS 20 TO 25 DEGREES ABOVE NORMAL ON 4/16 AND 4/17, WHEN SOME
PLACES AWAY FROM THE MODERATING INFLUENCE OF THE GREAT LAKES SAW THE
MERCURY TOP OUT OVER 80, ESTABLISHING NEW RECORD HIGH MAXIMUMS AT
MANY SPOTS. DEEP SNOW AT MANY LOCATIONS TO START THE DAY ON 4/14 FOR
THE MOST PART HAD COMPLETELY MELTED AWAY ON 4/17.

ALTHOUGH THE PASSAGE OF A DRY COLD FRONT ON 4/18 BROUGHT A RETURN OF
COOLER AIR, THE DAYS ON 4/18 THROUGH 4/21 STILL FEATURED RELATIVELY
MILD WEATHER WITH MEAN DAILY TEMPERATURES RANGING FROM 5 TO 10
DEGREES ABOVE NORMAL.

THE PASSAGE OF A STRONG COLD FRONT ON 4/21 SIGNALED ANOTHER BIG
CHANGE TO THE NORTH AMERICAN WEATHER PATTERN THAT WOULD FEATURE AN
UPPER TROUGH OVER EASTERN CANADA AND THE NORTHEAST STATES THROUGH
THE END OF APRIL. DESPITE THE STRENGTH OF THIS FRONT, NO MORE THAN
0.10 INCH OF RAIN ACCOMPANIED ITS PASSAGE. SOME SNOW AND FREEZING
DRIZZLE ALSO MIXED WITH THE LIGHT RAIN SHOWERS DURING THE NIGHT ON
4/21-4/22, BUT THERE WAS LITTLE IF ANY SNOW ACCUMULATION. MAXIMUM
TEMPERATURES BEHIND THE FRONT ROSE NO HIGHER THAN 37 AT MUNISING ON
4/22, WHEN MEAN DAILY TEMPERATURES AVERAGED UP TO 10 DEGREES BELOW
NORMAL. CANADIAN HIGH PRESSURE BUILDING INTO ONTARIO THEN BROUGHT
SOME UNEVENTFUL BUT CHILLY WEATHER FROM THE AFTERNOON ON 4/22
THROUGH 4/23, WHEN THE MERCURY AVERAGED 5 DEGREES BELOW NORMAL.

CLOUDS BEGAN TO INCREASE ON 4/23 AHEAD OF A DEVELOPING LOW PRESSURE
SYSTEM IN THE NORTHERN PLAINS.  ALTHOUGH THERE WERE A FEW LIGHT
SHOWERS ON 4/24, A STEADY RAIN OVERSPREAD UPPER MICHIGAN DURING THE
NIGHT ON 4/24-4/25 AS THE LOW TRACKED TOWARD THE WESTERN GREAT
LAKES. RAIN, ALONG WITH A FEW THUNDERSTORMS AND SOME PATCHY FOG,
THEN CONTINUED THROUGH THE DAY ON 4/25 AS THE LOW DRIFTED INTO
WISCONSIN. BY THE TIME THE PRECIPITATION DIMINISHED TO SOME LIGHT
RAIN AND SNOW SHOWERS DURING THE NIGHT ON 4/25-4/26 AS THE LOW
EXITED THROUGH LOWER MICHIGAN, MANY PLACES HAD PICKED UP AN INCH OR
MORE OF RAIN. IRONWOOD SAW THE MOST PRECIPITATION WITH 2.02 INCHES.
SOME PLACES OVER THE HIGHER TERRAIN OF THE NORTH CENTRAL EVEN PICKED
UP A COATING OF SNOW DURING THE NIGHT. DUE TO HIGH TEMPERATURES THAT
FAILED TO GET OUT OF THE 30S AT SOME PLACES ON 4/24 AND 4/25, MEAN
DAILY TEMPERATURES AVERAGED 5 TO 10 DEGREES BELOW NORMAL ON THOSE
DAYS.

THE PERIOD FROM 4/26 THROUGH 4/30 WAS A DRY BUT RELATIVELY COOL ONE
DOMINATED BY A NORTHEAST FLOW ON THE SOUTHERN FLANK OF HIGH PRESSURE
NEAR HUDSON BAY. EXCEPT FOR SOME MAINLY HIGH CLOUDS ON THE NORTHERN
FRINGES OF A LOW PRESSURE SYSTEM MOVING NEAR THE LOWER GREAT LAKES,
SKIES TENDED TO BE MOSTLY CLEAR. MEAN DAILY TEMPERATURES AVERAGED
FROM NEAR NORMAL TO AS MUCH AS 5 TO 10 DEGREES BELOW NORMAL.

                           JUNE FORECAST

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

                          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 6:34 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 CPC IS FORECASTING A GREATER THAN CLIMATOLOGICAL CHANCE OF AN
ABOVE NORMAL 3-MONTH AVERAGE TEMPERATURE BUT EQUAL CHANGES OF ABOVE
AND BELOW NORMAL 3-MONTH PRECIPITATION OVER ALL OF UPPER MICHIGAN IN
JULY THROUGH SEPTEMBER 2016.

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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