342  
CDUS43 KDMX 300629  
CLIOTM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
129 AM CDT TUE SEP 30 2025  
   
...............................
 
 
   
..THE OTTUMWA IA CLIMATE SUMMARY FOR SEPTEMBER 29 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 88 208 PM 93 1953 72 16 84  
MINIMUM 60 313 AM 27 1984 48 12 52  
AVERAGE 74 60 14 68  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.10 1927 0.10 -0.10 0.00  
MONTH TO DATE 0.83 3.40 -2.57 0.71  
SINCE SEP 1 0.83 3.40 -2.57 0.71  
SINCE JAN 1 17.40 30.53 -13.13 28.68  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 6 -6 0  
MONTH TO DATE 39 92 -53 42  
SINCE SEP 1 39 92 -53 42  
SINCE JUL 1 50 101 -51 50  
 
COOLING  
YESTERDAY 9 2 7 3  
MONTH TO DATE 147 106 41 108  
SINCE SEP 1 147 106 41 108  
SINCE JAN 1 1023 969 54 918    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 6.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 78 1100 PM  
LOWEST 28 200 PM  
AVERAGE 53  
   
......................................................
 
 
THE OTTUMWA IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 93 2023  
MINIMUM TEMPERATURE (F) 48 30 1924  
 
SUNRISE AND SUNSET  
SEPTEMBER 30 2025.....SUNRISE 706 AM CDT SUNSET 653 PM CDT  
OCTOBER 1 2025.......SUNRISE 707 AM CDT SUNSET 651 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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