354  
CDUS43 KDMX 280628  
CLIOTM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
128 AM CDT THU AUG 28 2025  
   
...............................
 
 
   
..THE OTTUMWA IA CLIMATE SUMMARY FOR AUGUST 27 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 79 409 PM 100 1936 83 -4 94  
MINIMUM 51 217 AM 47 1986 60 -9 69  
AVERAGE 65 71 -6 82  
 
PRECIPITATION (IN)  
YESTERDAY T 2.56 1998 0.15 -0.15 0.48  
MONTH TO DATE 2.16 3.84 -1.68 1.62  
SINCE JUN 1 11.10 13.09 -1.99 10.78  
SINCE JAN 1 16.57 26.53 -9.96 27.59  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 11 0 11 8  
SINCE JUN 1 18 19 -1 9  
SINCE JUL 1 11 2 9 8  
 
COOLING  
YESTERDAY 0 7 -7 17  
MONTH TO DATE 201 231 -30 186  
SINCE JUN 1 802 761 41 718  
SINCE JAN 1 853 839 14 776    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 5.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 1200 AM  
LOWEST 42 300 PM  
AVERAGE 68  
   
......................................................
 
 
THE OTTUMWA IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 98 1984  
2013  
MINIMUM TEMPERATURE (F) 60 41 1935  
 
SUNRISE AND SUNSET  
AUGUST 28 2025........SUNRISE 633 AM CDT SUNSET 748 PM CDT  
AUGUST 29 2025........SUNRISE 634 AM CDT SUNSET 747 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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