844  
CDUS43 KFSD 200646  
CLISUX  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SIOUX FALLS SD  
146 AM CDT SAT SEP 20 2025  
   
...............................
 
 
   
..THE SIOUX CITY IA CLIMATE SUMMARY FOR SEPTEMBER 19 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 70 4:50 PM 98 1895 76 -6 86  
1948  
MINIMUM 54 11:22 PM 29 1991 50 4 54  
AVERAGE 62 63 -1 70  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.78 1923 0.09 -0.09 T  
MONTH TO DATE 2.05 1.84 0.21 0.04  
SINCE SEP 1 2.05 1.84 0.21 0.04  
SINCE JAN 1 24.46 23.81 0.65 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 3 5 -2 0  
MONTH TO DATE 52 52 0 15  
SINCE SEP 1 52 52 0 15  
SINCE JUL 1 67 67 0 20  
 
COOLING  
YESTERDAY 0 2 -2 5  
MONTH TO DATE 71 70 1 95  
SINCE SEP 1 71 70 1 95  
SINCE JAN 1 935 838 97 823    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 6.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 12:00 AM  
LOWEST 65 5:00 PM  
AVERAGE 81  
   
......................................................
 
 
THE SIOUX CITY IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 97 2022  
MINIMUM TEMPERATURE (F) 49 29 1918  
 
SUNRISE AND SUNSET  
SEPTEMBER 20 2025.....SUNRISE 7:11 AM CDT SUNSET 7:26 PM CDT  
SEPTEMBER 21 2025.....SUNRISE 7:12 AM CDT SUNSET 7:24 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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