618  
CDUS43 KDVN 190637  
CLIIOW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE QUAD CITIES IA IL  
137 AM CDT TUE AUG 19 2025  
   
...............................  
 
   
..THE IOWA CITY IA CLIMATE SUMMARY FOR AUGUST 18 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 91 307 PM MM MM 84 7 84  
MINIMUM 71 144 AM MM MM 63 8 65  
AVERAGE 81 74 7 75  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 MM MM 0.13 -0.13 0.00  
MONTH TO DATE 1.55 2.18 -0.63 2.82  
SINCE JUN 1 11.54 11.38 0.16 14.99  
SINCE JAN 1 21.42 24.08 -2.66 30.40  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 3  
SINCE JUN 1 3 15 -12 4  
SINCE JUL 1 0 2 -2 4  
 
COOLING  
YESTERDAY 16 8 8 10  
MONTH TO DATE 189 172 17 154  
SINCE JUN 1 874 741 133 727  
SINCE JAN 1 938 822 116 803    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 5.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 400 AM  
LOWEST 64 200 PM  
AVERAGE 82  
   
......................................................  
 
THE IOWA CITY IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 84 MM MM  
MINIMUM TEMPERATURE (F) 63 MM MM  
 
SUNRISE AND SUNSET  
AUGUST 19 2025........SUNRISE 619 AM CDT SUNSET 759 PM CDT  
AUGUST 20 2025........SUNRISE 620 AM CDT SUNSET 758 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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