262  
CDUS43 KDVN 160632  
CLIIOW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE QUAD CITIES IA IL  
132 AM CDT TUE SEP 16 2025  
   
...............................  
 
   
..THE IOWA CITY IA CLIMATE SUMMARY FOR SEPTEMBER 15 2025  
 
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)  
YESTERDAY  
MAXIMUM 91 151 PM MM MM 78 13 88  
MINIMUM 70 619 AM MM MM 55 15 64  
AVERAGE 81 66 15 76  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 MM MM 0.10 -0.10 0.00  
MONTH TO DATE 0.04 1.70 -1.66 0.00  
SINCE SEP 1 0.04 1.70 -1.66 0.00  
SINCE JAN 1 21.55 27.54 -5.99 31.87  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 2 -2 0  
MONTH TO DATE 37 20 17 16  
SINCE SEP 1 37 20 17 16  
SINCE JUL 1 48 26 22 21  
 
COOLING  
YESTERDAY 16 4 12 11  
MONTH TO DATE 79 73 6 49  
SINCE SEP 1 79 73 6 49  
SINCE JAN 1 1091 992 99 973    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SE (140)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SE (120)  
AVERAGE WIND SPEED 5.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 600 AM  
LOWEST 48 500 PM  
AVERAGE 68  
   
......................................................  
 
THE IOWA CITY IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 MM MM  
MINIMUM TEMPERATURE (F) 54 MM MM  
 
SUNRISE AND SUNSET  
SEPTEMBER 16 2025.....SUNRISE 648 AM CDT SUNSET 713 PM CDT  
SEPTEMBER 17 2025.....SUNRISE 649 AM CDT SUNSET 711 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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