835  
CDUS43 KDVN 300808  
CLIIOW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE QUAD CITIES IA IL  
308 AM CDT TUE SEP 30 2025  
   
...............................
 
 
   
..THE IOWA CITY IA CLIMATE SUMMARY FOR SEPTEMBER 29 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 89 247 PM MM MM 73 16 84  
MINIMUM 55 614 AM MM MM 49 6 57  
AVERAGE 72 61 11 71  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 MM MM 0.09 -0.09 0.00  
MONTH TO DATE 1.16 3.14 -1.98 0.03  
SINCE SEP 1 1.16 3.14 -1.98 0.03  
SINCE JAN 1 22.67 28.98 -6.31 31.90  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 6 -6 0  
MONTH TO DATE 37 78 -41 18  
SINCE SEP 1 37 78 -41 18  
SINCE JUL 1 48 84 -36 23  
 
COOLING  
YESTERDAY 7 2 5 6  
MONTH TO DATE 167 108 59 129  
SINCE SEP 1 167 108 59 129  
SINCE JAN 1 1179 1027 152 1053    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 2.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 200 AM  
LOWEST 27 200 PM  
AVERAGE 60  
   
......................................................
 
 
THE IOWA CITY IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 MM MM  
MINIMUM TEMPERATURE (F) 48 MM MM  
 
SUNRISE AND SUNSET  
SEPTEMBER 30 2025.....SUNRISE 702 AM CDT SUNSET 649 PM CDT  
OCTOBER 1 2025.......SUNRISE 703 AM CDT SUNSET 647 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab IL Page
The Nexlab IA Page
The Nexlab MO Page Main Text Page