178  
CDUS43 KDMX 230636  
CLIOTM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
136 AM CDT TUE SEP 23 2025  
   
...............................
 
 
   
..THE OTTUMWA IA CLIMATE SUMMARY FOR SEPTEMBER 22 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 84 319 PM 99 1937 75 9 69  
MINIMUM 61 1159 PM 33 1995 51 10 51  
AVERAGE 73 63 10 60  
 
PRECIPITATION (IN)  
YESTERDAY T 1.89 1945 0.11 -0.11 0.09  
MONTH TO DATE 0.38 2.66 -2.28 0.71  
SINCE SEP 1 0.38 2.66 -2.28 0.71  
SINCE JAN 1 16.95 29.79 -12.84 28.68  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 4 -4 5  
MONTH TO DATE 38 53 -15 33  
SINCE SEP 1 38 53 -15 33  
SINCE JUL 1 49 62 -13 41  
 
COOLING  
YESTERDAY 8 2 6 0  
MONTH TO DATE 115 92 23 98  
SINCE SEP 1 115 92 23 98  
SINCE JAN 1 991 955 36 908    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 35 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 48 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 7.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 700 AM  
LOWEST 51 300 PM  
AVERAGE 74  
   
......................................................
 
 
THE OTTUMWA IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 93 1938  
MINIMUM TEMPERATURE (F) 51 30 2012  
 
SUNRISE AND SUNSET  
SEPTEMBER 23 2025.....SUNRISE 659 AM CDT SUNSET 705 PM CDT  
SEPTEMBER 24 2025.....SUNRISE 700 AM CDT SUNSET 703 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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