826  
CDUS43 KFSD 120637  
CLISUX  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SIOUX FALLS SD  
1237 AM CST TUE DEC 12 2017  
 
   
...............................
 
 
   
..THE SIOUX CITY IA CLIMATE SUMMARY FOR DECEMBER 11 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1889 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 45 1137 AM 60 1946 33 12 30  
1943  
1889  
MINIMUM 19 1152 PM -10 1989 14 5 8  
AVERAGE 32 23 9 19  
 
PRECIPITATION (IN)  
YESTERDAY T 0.44 1961 0.03 -0.03 T  
MONTH TO DATE 0.02 0.34 -0.32 0.13  
SINCE DEC 1 0.02 0.34 -0.32 0.13  
SINCE JAN 1 29.30 27.28 2.02 30.90  
 
SNOWFALL (IN)  
YESTERDAY 0.0 5.2 2000 0.3 -0.3 T  
MONTH TO DATE 0.2 2.9 -2.7 1.2  
SINCE DEC 1 0.2 2.9 -2.7 1.2  
SINCE JUL 1 0.2 8.3 -8.1 2.2  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 33 42 -9 46  
MONTH TO DATE 365 439 -74 418  
SINCE DEC 1 365 439 -74 418  
SINCE JUL 1 1684 1915 -231 1362  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 951 869 82 1165    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 43 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 53 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 22.2  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 81 1200 AM  
LOWEST 52 600 AM  
AVERAGE 67  
   
......................................................
 
 
 
THE SIOUX CITY IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 32 60 1921  
MINIMUM TEMPERATURE (F) 14 -15 1932  
 
 
SUNRISE AND SUNSET  
DECEMBER 12 2017......SUNRISE 746 AM CST SUNSET 453 PM CST  
DECEMBER 13 2017......SUNRISE 747 AM CST SUNSET 453 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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