363  
CDUS43 KFSD 210832  
CLISUX  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SIOUX FALLS SD  
332 AM CDT SUN SEP 21 2025  
   
...............................  
 
   
..THE SIOUX CITY IA CLIMATE SUMMARY FOR SEPTEMBER 20 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 75 3:17 PM 97 2022 76 -1 88  
MINIMUM 51 5:11 AM 29 1918 49 2 50  
AVERAGE 63 62 1 69  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.70 1902 0.09 -0.09 0.00  
MONTH TO DATE 2.05 1.93 0.12 0.04  
SINCE SEP 1 2.05 1.93 0.12 0.04  
SINCE JAN 1 24.46 23.90 0.56 28.21  
 
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 SEP 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 2 5 -3 0  
MONTH TO DATE 54 57 -3 15  
SINCE SEP 1 54 57 -3 15  
SINCE JUL 1 69 72 -3 20  
 
COOLING  
YESTERDAY 0 2 -2 4  
MONTH TO DATE 71 72 -1 99  
SINCE SEP 1 71 72 -1 99  
SINCE JAN 1 935 840 95 827    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 1.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 2:00 AM  
LOWEST 55 3:00 PM  
AVERAGE 78  
   
......................................................  
 
THE SIOUX CITY IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 96 2005  
MINIMUM TEMPERATURE (F) 49 29 1999  
 
SUNRISE AND SUNSET  
SEPTEMBER 21 2025.....SUNRISE 7:12 AM CDT SUNSET 7:24 PM CDT  
SEPTEMBER 22 2025.....SUNRISE 7:13 AM CDT SUNSET 7:22 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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