858  
CDUS43 KDVN 050621  
CLIIOW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE QUAD CITIES IA IL  
121 AM CDT FRI SEP 05 2025  
   
...............................
 
 
   
..THE IOWA CITY IA CLIMATE SUMMARY FOR SEPTEMBER 4 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 70 227 PM MM MM 81 -11 79  
MINIMUM 45 549 AM MM MM 59 -14 50  
AVERAGE 58 70 -12 65  
 
PRECIPITATION (IN)  
YESTERDAY T MM MM 0.12 -0.12 0.00  
MONTH TO DATE 0.04 0.49 -0.45 0.00  
SINCE SEP 1 0.04 0.49 -0.45 0.00  
SINCE JAN 1 21.55 26.33 -4.78 31.87  
 
DEGREE DAYS  
HEATING  
YESTERDAY 7 1 6 0  
MONTH TO DATE 9 3 6 1  
SINCE SEP 1 9 3 6 1  
SINCE JUL 1 20 9 11 6  
 
COOLING  
YESTERDAY 0 6 -6 0  
MONTH TO DATE 9 24 -15 4  
SINCE SEP 1 9 24 -15 4  
SINCE JAN 1 1021 943 78 928    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 7.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 500 AM  
LOWEST 43 200 PM  
AVERAGE 70  
   
......................................................
 
 
THE IOWA CITY IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 MM MM  
MINIMUM TEMPERATURE (F) 58 MM MM  
 
SUNRISE AND SUNSET  
SEPTEMBER 5 2025.....SUNRISE 637 AM CDT SUNSET 732 PM CDT  
SEPTEMBER 6 2025.....SUNRISE 638 AM CDT SUNSET 730 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