574  
CDUS43 KDMX 170632  
CLIOTM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
132 AM CDT SUN AUG 17 2025  
   
...............................
 
 
   
..THE OTTUMWA IA CLIMATE SUMMARY FOR AUGUST 16 2025
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1920 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 92 417 PM 106 1936 84 8 86  
MINIMUM 70 542 AM 49 2013 62 8 63  
AVERAGE 81 73 8 75  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.22 2009 0.16 -0.16 0.00  
MONTH TO DATE 2.09 2.18 -0.09 1.10  
SINCE JUN 1 11.03 11.43 -0.40 10.26  
SINCE JAN 1 16.50 24.87 -8.37 27.07  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 6  
SINCE JUN 1 7 19 -12 7  
SINCE JUL 1 0 2 -2 6  
 
COOLING  
YESTERDAY 16 8 8 10  
MONTH TO DATE 130 148 -18 106  
SINCE JUN 1 731 678 53 638  
SINCE JAN 1 782 756 26 696    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 7.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 600 AM  
LOWEST 60 400 PM  
AVERAGE 77  
   
......................................................
 
 
THE OTTUMWA IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 84 104 1983  
1988  
MINIMUM TEMPERATURE (F) 62 49 1897  
2012  
2013  
 
SUNRISE AND SUNSET  
AUGUST 17 2025........SUNRISE 622 AM CDT SUNSET 805 PM CDT  
AUGUST 18 2025........SUNRISE 623 AM CDT SUNSET 804 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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