097  
CDUS43 KDMX 310631  
CLIOTM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
131 AM CDT THU JUL 31 2025  
   
...............................
 
 
   
..THE OTTUMWA IA CLIMATE SUMMARY FOR JULY 30 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 78 334 AM 105 1935 86 -8 82  
MINIMUM 68 806 AM 48 1971 64 4 65  
AVERAGE 73 75 -2 74  
 
PRECIPITATION (IN)  
YESTERDAY 0.55 2.31 1959 0.12 0.43 1.02  
MONTH TO DATE 4.97 3.75 1.22 5.08  
SINCE JUN 1 8.94 9.13 -0.19 7.24  
SINCE JAN 1 14.41 22.57 -8.16 24.05  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 7 17 -10 1  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 8 10 -2 9  
MONTH TO DATE 345 300 45 254  
SINCE JUN 1 597 515 82 522  
SINCE JAN 1 648 593 55 580    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 31 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 45 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 9.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 200 AM  
LOWEST 82 1100 AM  
AVERAGE 90  
   
......................................................
 
 
THE OTTUMWA IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 86 104 1988  
MINIMUM TEMPERATURE (F) 64 47 1936  
 
SUNRISE AND SUNSET  
JULY 31 2025..........SUNRISE 605 AM CDT SUNSET 827 PM CDT  
AUGUST 1 2025........SUNRISE 606 AM CDT SUNSET 826 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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