National Weather Service Text Product Display

Climatological Report (Seasonal)
Issued by NWS Grand Forks, ND
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CXUS53 KFGF 011953
CLSGFK

CLIMATE REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
250 PM CDT SAT JUN 1 2013

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

...THE GRAND FORKS INTL AP ND CLIMATE SUMMARY FOR THE SEASON, FROM
3/1/2013 TO 5/31/2013...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1941 TO 2013

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             101   05/21/1964
 LOW              -38   03/10/1948
HIGHEST            90   05/13        53      37       89  05/18
LOWEST            -23   03/17        31     -54       -8  03/04
AVG. MAXIMUM     43.4              52.0    -8.6     59.6
AVG. MINIMUM     23.5              29.2    -5.7     34.8
MEAN             33.5              40.6    -7.1     47.2
DAYS MAX >= 90      1               0.6     0.4        0
DAYS MAX <= 32     34              13.0    21.0        7
DAYS MIN <= 32     66              51.7    14.3       32
DAYS MIN <= 0      13               4.2     8.8        3

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.95   1999
 MINIMUM         1.41   1980
TOTALS           7.38              4.65    2.73     4.95
DAILY AVG.       0.08              0.05    0.03     0.06
DAYS >= .01        31              25.1     5.9       31
DAYS >= .10        16              11.5     4.5       13
DAYS >= .50         4               2.6     1.4        3
DAYS >= 1.00        2               0.5     1.5        0
GREATEST
 24 HR. TOTAL    1.47   MM                       05/31 TO 05/31

 STORM TOTAL       MM                                 MM
 (MM/DD(HH))            MM                    05/31(00) TO 05/31(00)

SNOWFALL (INCHES)
RECORDS
 TOTAL           34.6   1966
 24 HR TOTAL       MM
 SNOW DEPTH        MM   MM
TOTALS           20.3              10.4    16.0      5.9
 LIQUID EQUIV      MM              1.00      MM     0.59
SINCE 7/1        50.2              47.4     2.8     22.8
 LIQUID 7/1      2.99                MM      MM     2.28
SNOWDEPTH AVG.      4                MM      MM        1
DAYS >= TRACE      12               7.6     4.4       11
DAYS >= 1.0         3               3.0     0.0        3
GREATEST
 SNOW DEPTH        14   03/19                          6  03/09
                                                          03/06
                                                          03/08
 24 HR TOTAL      8.3   MM                       05/31 TO 05/31

 STORM TOTAL       MM                                 MM
 (MM/DD(HH))            MM                    05/31(00) TO 05/31(00)

DEGREE_DAYS
HEATING TOTAL    2887              2262     625     1639
 SINCE 7/1         MM              9412      MM       MM
COOLING TOTAL       9                18      -9       22
 SINCE 1/1          9                17      -8       22

FREEZE DATES
RECORD
 EARLIEST     MM
 LATEST       MM
EARLIEST                        MM
LATEST                          MM
..................................................

WIND (MPH)
AVERAGE WIND SPEED              11.2
RESULTANT WIND SPEED/DIRECTION   3/355
HIGHEST WIND SPEED/DIRECTION    40/300    DATE  05/14
HIGHEST GUST SPEED/DIRECTION    48/310    DATE  05/14

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR           23
NUMBER OF DAYS PC             35
NUMBER OF DAYS CLOUDY         34

AVERAGE RH (PERCENT)     74

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                5     RAIN                       9
LIGHT RAIN               15     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       1
HEAVY SNOW                2     SNOW                       6
LIGHT SNOW               28     SLEET                      1
FOG                      44     FOG W/VIS <= 1/4 MILE     11
HAZE                      9

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

&&

WHAT A DIFFERENCE A YEAR MAKES. THE SPRING OF 2012 SAW THE
BEGINNINGS OF SIGNIFICANT DROUGHT CONDITIONS OVER THE REGION.

THE MARCH TO MAY 2013 SPRING HAS BEEN COMPLETELY DIFFERENT. WHILE IT
WAS ALREADY WETTER THAN A YEAR AGO...THE UNUSUALLY HEAVY SPRING
RAINS IN THE LAST HALF OF MAY PUSHED THE GRAND FORKS AIRPORT INTO
5TH PLACE. THE 7.38 INCHES OF RAIN FELL A TAD SHORT OF THE 1999
SPRING...WHEN 7.95 INCHES FELL AT THE AIRPORT.

IT WAS SO WET THIS SPRING DUE IN LARGE PART TO THE NEAR RECORD
SNOWFALL. THE 20.3 INCHES REPORTED IS THE 3RD SNOWIEST MARCH TO MAY
PERIOD. 50.2 INCHES OF SNOW FOR THE WHOLE WINTER SEASON FALLS INTO
11TH PLACE. THE SNOWIEST WINTER SEASON WAS THE 1996/1997 SEASON WHEN
93.8 INCHES FELL.

NOTE: IT IS IMPORTANT TO STATE THAT THE GRAND FORKS AIRPORT SNOWFALL
DATA IS INCOMPLETE DURING THE SPRING OF  2013...SO THE NUMBERS ABOVE
DO NOT FULLY REPRESENT THE SNOW SEASON.

TEMPERATURE WISE IT RANKS AS THE 5TH COLDEST METEOROLOGICAL SPRING
ON RECORD. THE 33.5 DEGREE AVERAGE WAS 7.1 DEGREES BELOW THE 30 YEAR
AVERAGE. THE COLDEST METEOROLOGICAL SPRING ON RECORD FOR THE AIRPORT
WAS SET IN 1950 WHEN THE AVERAGE WAS32.1 DEGREES. LAST YEAR DURING
THIS SAME TIME PERIOD THE TEMPERATURE AVERAGED 47.2 DEGREES MAKING
IT THE 3RD WARMEST SPRING ON RECORD.

REMEMBER...THIS DATA IS PROVISIONAL AND SUBJECT TO CHANGE. THE FINAL
AND OFFICIAL RECORDS WILL BE AVAILABLE FROM THE NATIONAL CLIMATIC
DATA CENTER.

$$

EWENS
National Weather Service Weather Forecast Office
