814  
CDUS43 KDVN 212121  
CLIIOW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE QUAD CITIES IA IL  
421 PM CDT SUN SEP 21 2025  
   
...............................
 
 
   
..THE IOWA CITY IA CLIMATE SUMMARY FOR SEPTEMBER 21 2025
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 9999 TO 9999  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 78 259 PM MM MM 76 2 89  
MINIMUM 59 607 AM MM MM 52 7 58  
AVERAGE 69 64 5 74  
 
PRECIPITATION (IN)  
TODAY 0.00 MM MM 0.11 -0.11 T  
MONTH TO DATE 0.38 2.35 -1.97 T  
SINCE SEP 1 0.38 2.35 -1.97 T  
SINCE JAN 1 21.89 28.19 -6.30 31.87  
 
DEGREE DAYS  
HEATING  
TODAY 0 4 -4 0  
MONTH TO DATE 37 39 -2 16  
SINCE SEP 1 37 39 -2 16  
SINCE JUL 1 48 45 3 21  
 
COOLING  
TODAY 4 3 1 9  
MONTH TO DATE 124 92 32 107  
SINCE SEP 1 124 92 32 107  
SINCE JAN 1 1136 1011 125 1031    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 7 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 10 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 1.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 1200 AM  
LOWEST 64 300 PM  
AVERAGE 82  
   
......................................................
 
 
THE IOWA CITY IA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 MM MM  
MINIMUM TEMPERATURE (F) 52 MM MM  
 
SUNRISE AND SUNSET  
SEPTEMBER 21 2025.....SUNRISE 653 AM CDT SUNSET 705 PM CDT  
SEPTEMBER 22 2025.....SUNRISE 654 AM CDT SUNSET 703 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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