676  
CDUS43 KFSD 190635  
CLISUX  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SIOUX FALLS SD  
135 AM CDT TUE AUG 19 2025  
   
...............................
 
 
   
..THE SIOUX CITY IA CLIMATE SUMMARY FOR AUGUST 18 2025
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1889 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 87 5:11 PM 104 1936 82 5 81  
MINIMUM 69 6:48 AM 46 2002 61 8 57  
AVERAGE 78 72 6 69  
 
PRECIPITATION (IN)  
YESTERDAY 0.59 4.51 1937 0.14 0.45 0.00  
MONTH TO DATE 2.59 2.24 0.35 1.81  
SINCE JUN 1 13.85 9.94 3.91 12.55  
SINCE JAN 1 20.99 20.27 0.72 27.57  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 MM 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE JUN 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 5  
SINCE JUN 1 18 30 -12 6  
SINCE JUL 1 0 4 -4 5  
 
COOLING  
YESTERDAY 13 7 6 4  
MONTH TO DATE 167 144 23 111  
SINCE JUN 1 758 628 130 603  
SINCE JAN 1 803 693 110 625    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 32 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 4.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 11:00 PM  
LOWEST 61 4:00 PM  
AVERAGE 81  
   
......................................................
 
 
THE SIOUX CITY IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 100 1938  
MINIMUM TEMPERATURE (F) 61 43 2004  
2012  
 
SUNRISE AND SUNSET  
AUGUST 19 2025........SUNRISE 6:37 AM CDT SUNSET 8:20 PM CDT  
AUGUST 20 2025........SUNRISE 6:38 AM CDT SUNSET 8:19 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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