146  
CDUS43 KFSD 140635  
CLIMHE  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SIOUX FALLS SD  
1234 AM CST THU DEC 14 2017  
 
   
...............................
 
 
   
..THE MITCHELL SD CLIMATE SUMMARY FOR DECEMBER 13 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 51 336 AM 63 1921 30 21 21  
MINIMUM 34 1118 PM -27 1917 12 22 -1  
AVERAGE 43 21 22 10  
 
PRECIPITATION (IN)  
YESTERDAY T 0.56 1937 0.01 -0.01 0.00  
MONTH TO DATE 0.29 0.25 0.04 0.15  
SINCE DEC 1 0.29 0.25 0.04 0.15  
SINCE JAN 1 19.89 21.32 -1.43 25.36  
 
SNOWFALL (IN)  
YESTERDAY 0.0 5.0 1937 MM MM 0.0  
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 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 22 44 -22 55  
MONTH TO DATE 421 547 -126 592  
SINCE DEC 1 421 547 -126 592  
SINCE JUL 1 1810 2115 -305 1686  
 
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 41 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 55 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 23.4  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 70 1100 AM  
LOWEST 36 200 AM  
AVERAGE 53  
   
......................................................
 
 
 
THE MITCHELL SD CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 30 67 1895  
MINIMUM TEMPERATURE (F) 12 -25 1917  
 
 
SUNRISE AND SUNSET  
DECEMBER 14 2017......SUNRISE 759 AM CST SUNSET 455 PM CST  
DECEMBER 15 2017......SUNRISE 759 AM CST SUNSET 456 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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