NWS WFO Grand Forks, ND

CXUS53 KFGF 011030
CLSFGF

CLIMATE REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS            
339 AM CST FRI MAR 1 2013

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

...THE GRAND FORKS UNIV. (NWS) ND CLIMATE SUMMARY FOR THE SEASON, FROM 
12/1/2012 TO 2/28/2013...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1890 TO 2013

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR'S         
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)      
                                          NORMAL                      
................................................................
TEMPERATURE (F)
RECORD
 HIGH              67   02/22/2000                                    
 LOW              -43   01/11/1912                                    
HIGHEST            43   12/03        19      24       50  12/18       
                        12/02                                         
LOWEST            -19   02/01         2     -21      -18  01/19       
AVG. MAXIMUM     18.6              19.4    -0.8     28.3              
AVG. MINIMUM      2.4               2.5    -0.1     10.5              
MEAN             10.5              10.9    -0.4     19.4              
DAYS MAX >= 90      0               0.0     0.0        0              
DAYS MAX <= 32     78              72.6     5.4       57              
DAYS MIN <= 32     90              89.4     0.6       91              
DAYS MIN <= 0      40              39.6     0.4       19              

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         4.39   1996                                          
 MINIMUM         0.37   2002                                          
TOTALS           1.09              1.95   -0.86     1.27              
DAILY AVG.       0.01              0.02   -0.01     0.02              
DAYS >= .01        22              19.1     2.9       17              
DAYS >= .10         4               6.1    -2.1        5              
DAYS >= .50         0               0.4    -0.4        0              
DAYS >= 1.00        0               0.1    -0.1        0              
GREATEST
 24 HR. TOTAL    0.17   MM                       02/29 TO 02/29       
                                                          02/29 TO 02/29
                                                          02/29 TO 02/29
 STORM TOTAL       MM                                 MM              
 (MM/DD(HH))            MM                    02/29(00) TO 02/29(00)  
                                                 02/29(00) TO 02/29(00)9
                                                 02/29(00) TO 02/29(00)9

SNOWFALL (INCHES)
RECORDS
 TOTAL           75.3   1996                                          
 24 HR TOTAL       MM                                                 
 SNOW DEPTH        MM   MM                                            
TOTALS           23.6              28.2    -4.6     19.6              
 LIQUID EQUIV      MM                MM      MM       MM              
SINCE 7/1        33.6              35.3    -1.7     21.0              
 LIQUID 7/1        MM                MM      MM       MM              
SNOWDEPTH AVG.      3                 5      -2        2              
DAYS >= TRACE      55              20.9    34.1       40              
DAYS >= 1.0         8               8.4    -0.4        5              
GREATEST
 SNOW DEPTH         8   02/18                          7  02/27       
 24 HR TOTAL      4.8   MM                       02/29 TO 02/29       
                                                          02/29 TO 02/29
                                                          02/29 TO 02/29
 STORM TOTAL       MM                                 MM              
 (MM/DD(HH))            MM                    02/29(00) TO 02/29(00)  
                                                 02/29(00) TO 02/29(00)9
                                                 02/29(00) TO 02/29(00)9

DEGREE_DAYS
HEATING TOTAL    4885              4866      19     4127              
 SINCE 7/1         MM              6960      MM       MM              
COOLING TOTAL       0                 0       0        0              
 SINCE 1/1          0                 0       0        0              

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

WIND (MPH)
AVERAGE WIND SPEED              MM                                    
RESULTANT WIND SPEED/DIRECTION  MM                                    
HIGHEST WIND SPEED/DIRECTION    MM        DATE   MM                   
HIGHEST GUST SPEED/DIRECTION    MM        DATE   MM                   

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM                                      
AVERAGE SKY COVER             MM                                      
NUMBER OF DAYS FAIR            0
NUMBER OF DAYS PC              0
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     MM                                           

WEATHER CONDITIONS. NUMBER OF DAYS WITH 
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                4     FREEZING RAIN              0
LT FREEZING RAIN          5     HAIL                       0
HEAVY SNOW                0     SNOW                       2
LIGHT SNOW               41     SLEET                      0
FOG                      17     FOG W/VIS <= 1/4 MILE      2
HAZE                      5                                           
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.          

&&
                                
THE METEOROLOGICAL WINTER MONTHS OF DECEMBER 2012 THROUGH FEBRUARY 
2013 WERE JUST A TAD COOLER THAN MEDIAN AT THE UNIVERSITY OF NORTH 
DAKOTA/ GRAND FORKS NATIONAL WEATHER SERVICE CLIMATE STATION. THE 
MEAN 90 DAY TEMPERATURE OF 10.5 DEGREES WAS 0.4 BELOW THE 1981 - 
2010 NORMAL VALUE OF 10.9 DEGREES. IT IS A FAR CRY FROM THE PREVIOUS 
WINTER WHERE THE AVERAGE TEMPERATURE WAS ABOUT 10 DEGREES WARMER.

THE TOTAL SNOWFALL OF 23.6 INCHES WAS 4.6 INCHES BELOW THE 30 YEAR 
MEDIAN VALUE OF 28.2 INCHES. THE SNOWDEPTH AVERAGED 4 INCHES THE 
PAST THREE MONTHS WHICH IS ABOUT 2 INCHES LESS THAN THE MEDIAN VALUE 
IN YEARS PAST. SINCE THE FIRST OF JULY 33.6 INCHES OF SNOW HAS 
FALLEN AT THE UND/NWS CLIMATE STATION.

THE TOTAL LIQUID PRECIPITATION THE PAST 90 DAYS WAS 1.09 INCHES WHICH
IS A NEARLY HALF THE MEDIAN VALUE OF 1.95 INCHES.

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
