National Weather Service Weather Forecast Office

...THE GRAND FORKS CLIMATE SUMMARY FOR THE MONTH OF APRIL 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             100   04/21/1980                                    
 LOW               -9   04/02/1920                                    
HIGHEST            70   04/27        54      16       77  04/23       
LOWEST              8   04/01        31     -23       19  04/11       
AVG. MAXIMUM     39.5              53.9   -14.4     58.7              
AVG. MINIMUM     24.6              31.1    -6.5     33.4              
MEAN             32.0              42.5   -10.5     46.1              
DAYS MAX >= 90      0               0.1    -0.1        0              
DAYS MAX <= 32      5               1.3     3.7        0              
DAYS MIN <= 32     28              18.7     9.3       12              
DAYS MIN <= 0       0               0.0     0.0        0              

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         3.64   1974                                          
 MINIMUM         0.00   1988                                          
TOTALS           1.61              1.01    0.60     1.41              
DAILY AVG.       0.05              0.03    0.02     0.05              
DAYS >= .01        11               7.0     4.0        6              
DAYS >= .10         4               3.0     1.0        4              
DAYS >= .50         1               0.4     0.6        0              
DAYS >= 1.00        0               0.0     0.0        0              
GREATEST
 24 HR. TOTAL    0.83   04/29 TO 04/30                                

SNOWFALL (INCHES)
RECORDS
 TOTAL            9.6   1994                                          
TOTALS            6.7               2.9     3.8        T              
SINCE 7/1        50.2              47.3     2.9     22.8              
SNOWDEPTH AVG.      3                MM      MM        0              
DAYS >= 1.0         3               0.7     2.3        0              
GREATEST
 SNOW DEPTH         7   04/01                          0  MM          
 24 HR TOTAL      2.4   MM                                            

DEGREE_DAYS
HEATING TOTAL     985               693     292      560              
 SINCE 7/1       9552              9078     474     7226              
COOLING TOTAL       0                 1      -1        0              
 SINCE 1/1          0                 1      -1        0              
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              11.8
HIGHEST WIND SPEED/DIRECTION    36/270    DATE  04/30
HIGHEST GUST SPEED/DIRECTION    46/270    DATE  04/30

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM                                      
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            7
NUMBER OF DAYS PC             13
NUMBER OF DAYS CLOUDY         10

AVERAGE RH (PERCENT)     76

WEATHER CONDITIONS. NUMBER OF DAYS WITH 
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       2
LIGHT RAIN                4     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       1
HEAVY SNOW                0     SNOW                       2
LIGHT SNOW               11     SLEET                      1
FOG                      11     FOG W/VIS <= 1/4 MILE      2
HAZE                      1                                           
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          

&&

REMARKS...

APRIL 2013 WAS COLD AND WET AT THE GRAND FORKS INTERNATIONAL AIRPORT.
THE AVERAGE TEMPERATURE FOR THE MONTH WAS 32.0 DEGREES...WHICH IS 
10.5 DEGREES BELOW NORMAL. THIS IS THE 2ND COLDEST APRIL ON RECORD.  

TOTAL SNOWFALL FOR THE MONTH WAS 6.7 INCHES. TOTAL LIQUID 
PRECIPITATION FOR THE MONTH WAS 1.61 INCHES...WHICH IS 0.60 INCHES 
ABOVE NORMAL. 

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

$$