Climatological Report (Monthly)
Issued by NWS Marquette, MI

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000
CXUS53 KMQT 030252
CLMMQT

CLIMATE REPORT...PRELIMINARY
NATIONAL WEATHER SERVICE MARQUETTE MI
1050 PM EDT FRI MAY 2 2014

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

...THE MARQUETTE MI CLIMATE SUMMARY FOR THE MONTH OF APRIL 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1961 TO 2014

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            66   04/21        46      20       67  04/30
                                                          04/27
LOWEST             -5   04/16        27     -32        2  04/02
AVG. MAXIMUM     42.8              47.8    -5.0     40.7
AVG. MINIMUM     23.5              28.0    -4.5     24.1
MEAN             33.1              37.9    -4.8     32.4
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      4               2.6     1.4        8
DAYS MIN <= 32     25              21.1     3.9       27
DAYS MIN <= 0       2               0.1     1.9        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         6.56   1985
 MINIMUM         0.90   1998
TOTALS           4.45              3.01    1.44     4.76
DAILY AVG.       0.15              0.10    0.05     0.16
DAYS >= .01        14              12.2     1.8       18
DAYS >= .10         8               6.9     1.1       10
DAYS >= .50         4               1.7     2.3        3
DAYS >= 1.00        1               0.6     0.4        0
GREATEST
 24 HR. TOTAL    1.11   04/04 TO 04/04

SNOWFALL (INCHES)
RECORDS
 TOTAL           55.2   2007
TOTALS           35.8              14.5    21.3     27.6
SINCE 7/1       195.3             201.8    -6.5    210.2
SNOWDEPTH AVG.     19                11       8       31
DAYS >= 1.0         7               3.3     3.7        7
GREATEST
 SNOW DEPTH        39   04/05                         39  04/15
                                                          04/13
 24 HR TOTAL     10.3   04/04 TO 04/04

DEGREE_DAYS
HEATING TOTAL     951               815     136      971
 SINCE 7/1       9796              8702    1094     8631
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    37/270    DATE  04/10

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               2
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN               18     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       0
HEAVY SNOW                2     SNOW                       3
LIGHT SNOW               16     SLEET                      1
FOG                       6     FOG W/VIS <= 1/4 MILE      5
HAZE                      0

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

&&

...APRIL 2014 MONTHLY CLIMATE SUMMARY FOR UPPER MICHIGAN...
(THIS DISCUSSION DOES NOT INCLUDE CHIPPEWA AND MACKINAC COUNTIES)

...VERY CHILLY AGAIN...
...SEVENTH COLDEST APRIL AT THE MARQUETTE NWS...

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

APRIL CLIMATE STATISTICS FOR THE MARQUETTE NWS IN NEGAUNEE TOWNSHIP

                                    NORMAL   DEPARTURE
AVERAGE TEMPERATURE         33.1     37.9  MINUS    4.8
AVERAGE HIGH TEMPERATURE    42.8     47.8  MINUS    5.0
AVERAGE LOW TEMPERATURE     23.5     28.0  MINUS    4.5
HEATING DEGREE DAYS          951      815   PLUS    136
COOLING DEGREE DAYS            0        1  MINUS      1
TOTAL PRECIPITATION         4.45     3.01   PLUS   1.44
TOTAL SNOWFALL              35.8     14.5   PLUS   21.3

HIGHEST TEMPERATURE:                    66 ON 4/21
LOWEST TEMPERATURE:                     -5 ON 4/16
GREATEST CALENDAR DAY PRECIPITATION:  1.11 ON 4/4
GREATEST 24 HOUR PRECIPITATION:       1.11 ON 4/4
GREATEST CALENDAR DAY SNOWFALL:       10.3 ON 4/4
GREATEST 24 HOUR SNOWFALL:            10.3 ON 4/4
GREATEST SNOW DEPTH:                    39 ON 4/5
PEAK WIND SPEED:      37 MPH FROM THE WEST ON 4/10

DAILY RECORD SNOWFALL ON 4/14...6.0 /OLD RECORD 2.3...2013/
DAILY RECORD LOW MINIMUM TEMPERATURE ON 4/15...-1 /16...1964/
DAILY RECORD LOW MAXIMUM TEMPERATURE ON 4/15...23 /27...1983/
DAILY RECORD LOW MINIMUM TEMPERATURE ON 4/16...-5 /7...1980/
DAILY RECORD SNOWFALL ON 4/17...3.9 /2.5...1982/
DAILY RECORD LOW MAXIMUM TEMPERATURE TIED ON 4/29...37 /37...1993&94/
DAILY RECORD PRECIPITATION ON 4/29...0.99 /0.72...1963/
DAILY RECORD SNOWFALL ON 4/29...4.1 /1.7...1996/
SEVENTH LOWEST APRIL MEAN TEMPERATURE...33.1 /RECORD 31.0...1972/
---------------------------------------------------------------------
GREAT LAKES WATER LEVELS (FEET/METERS ABOVE MEAN SEA LEVEL)

                            LAKE SUPERIOR  LAKE MICHIGAN-HURON
04/01/14 DAILY MEAN         601.14/183.23     577.32/175.97
04/30/14 DAILY MEAN         601.48/183.33     577.96/176.16
AVG MAR 2014 DAILY MEAN     601.15/183.23     577.26/175.95
AVG APR 2013 DAILY MEAN     600.13/182.92     576.60/175.75
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 STEADILY IN APRIL...

AS IS OFTEN THE CASE IN SPRING...SNOW MELT RUNOFF CONTRIBUTED TO
RISING GREAT LAKES WATER LEVELS IN APRIL. LINGERING ICE COVER...
WHICH PERSISTED OVER A GOOD PORTION OF LAKE SUPERIOR THROUGH EVEN
THE END OF THE MONTH...ALSO LIMITED EVAPORATION...FURTHER AIDING THE
WATER LEVEL RECOVERY. IN FACT...LAKE SUPERIOR ROSE ABOUT 4 INCHES IN
APRIL TO AROUND 3 INCHES ABOVE THE LONG TERM NORMAL LEVEL ON 4/30.
ON 4/30...LAKE SUPERIOR WAS ABOUT 16 INCHES HIGHER THAN IN APRIL
2013. THE WATER LEVEL ON LAKES MICHIGAN AND HURON ALSO RECOVERED
SIGNIFICANTLY...RISING NEARLY 8 INCHES TO WITHIN 9 INCHES OF THE
LONG TERM AVERAGE AND AROUND 16 INCHES HIGHER THAN IN APRIL 2013.

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

MORE TO COME LATER.

---------------------------------------------------------------------
                             MAY FORECAST

THE CLIMATE PREDICTION CENTER (CPC) IS FORECASTING A GREATER THAN
CLIMATOLOGICAL CHANCE OF A BELOW NORMAL MONTHLY MEAN TEMPERATURE BUT
AN EQUAL CHANCE OF ABOVE AND BELOW NORMAL MONTHLY PRECIPITATION OVER
ALL OF UPPER MICHIGAN IN MAY 2014.

                          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 EQUAL CHANCES OF
AN ABOVE AND BELOW NORMAL 3-MONTH MEAN TEMPERATURE AS WELL AS ABOVE
AND BELOW NORMAL 3-MONTH PRECIPITATION OVER ALL OF UPPER MICHIGAN IN
JUNE THROUGH AUGUST 2014.

GO TO HTTP://WWW.WEATHER.GOV/CLIMATE/L3MTO.PHP TO ACCESS DETAILED
LOCAL THREE-MONTH AVERAGE TEMPERATURE OUTLOOKS FOR A NUMBER OF SITES
IN UPPER MICHIGAN.

CHECK OUT HTTP://WWW.CPC.NCEP.NOAA.GOV FOR MORE INFORMATION ABOUT
THE CLIMATE PREDICTION CENTER AND MORE LONG RANGE PREDICTIONS.

NOTE THAT STATISTICS FOR THE NATIONAL WEATHER SERVICE OFFICE IN
NEGAUNEE TOWNSHIP ARE BASED ON RECORDS WHICH BEGAN IN OCTOBER 1961.
THIRTY YEAR NORMALS USED ARE FOR THE PERIOD OF 1981 THROUGH 2010.
NOTE ALL TEMPERATURES ARE IN FAHRENHEIT AND PRECIPITATION IS IN
INCHES. ALL CLIMATE DATA LISTED IN THIS PRODUCT ARE UNOFFICIAL. FOR
OFFICIAL DATA...PLEASE REFER TO THE NATIONAL CLIMATIC DATA CENTER.
ALSO NOTE THIS DISCUSSION DOES NOT INCLUDE DATA FROM CHIPPEWA AND
MACKINAC COUNTIES.

NWS MARQUETTE WEB PAGE IS AT HTTP://WWW.WEATHER.GOV/MQT (ALL LOWER
CASE). CONTACT THE NATIONAL CLIMATIC DATA CENTER AT (828) 271-4800
OR WWW.NCDC.NOAA.GOV.

$$

KC





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