825  
CDUS43 KFSD 120637  
CLIMHE  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SIOUX FALLS SD  
1237 AM CST TUE DEC 12 2017  
 
   
...............................
 
 
   
..THE MITCHELL SD CLIMATE SUMMARY FOR DECEMBER 11 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1893 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 43 917 AM 65 1968 31 12 24  
MINIMUM 17 1155 PM -18 1917 13 4 -2  
AVERAGE 30 22 8 11  
 
PRECIPITATION (IN)  
YESTERDAY T 0.86 1949 0.02 -0.02 T  
MONTH TO DATE 0.29 0.23 0.06 0.15  
SINCE DEC 1 0.29 0.23 0.06 0.15  
SINCE JAN 1 19.89 21.30 -1.41 25.36  
 
SNOWFALL (IN)  
YESTERDAY 0.0 10.0 1903 MM MM T  
MONTH TO DATE 2.3 MM MM 1.6  
SINCE DEC 1 2.3 MM MM 1.6  
SINCE JUL 1 3.5 MM MM 7.1  
SNOW DEPTH 1  
 
DEGREE DAYS  
HEATING  
YESTERDAY 35 43 -8 54  
MONTH TO DATE 366 459 -93 477  
SINCE DEC 1 366 459 -93 477  
SINCE JUL 1 1755 2027 -272 1571  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 890 824 66 1036    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 36 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 46 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 19.5  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 1000 PM  
LOWEST 46 400 AM  
AVERAGE 69  
   
......................................................
 
 
 
THE MITCHELL SD CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 30 59 1939  
1921  
MINIMUM TEMPERATURE (F) 12 -25 1932  
 
 
SUNRISE AND SUNSET  
DECEMBER 12 2017......SUNRISE 757 AM CST SUNSET 455 PM CST  
DECEMBER 13 2017......SUNRISE 758 AM CST SUNSET 455 PM CST  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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