886  
CDUS43 KDMX 210634  
CLIOTM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
134 AM CDT FRI AUG 21 2026  
   
...............................
 
 
   
..THE OTTUMWA IA CLIMATE SUMMARY FOR AUGUST 20 2026
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1920 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM MM MM 103 1947 84 MM 87  
MINIMUM MM MM 41 1950 62 MM 66  
AVERAGE MM 73 MM 77  
 
PRECIPITATION (IN)  
YESTERDAY MM 4.54 2010 0.15 MM 0.00  
MONTH TO DATE 1.44 2.79 -1.35 2.15  
SINCE JUN 1 6.78 12.04 -5.26 11.09  
SINCE JAN 1 15.15 25.48 -10.33 16.56  
 
DEGREE DAYS  
HEATING  
YESTERDAY MM 0 MM 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 8 19 -11 7  
SINCE JUL 1 0 2 -2 0  
 
COOLING  
YESTERDAY MM 8 MM 12  
MONTH TO DATE 127 180 -53 189  
SINCE JUN 1 696 710 -14 790  
SINCE JAN 1 824 788 36 841    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED MM HIGHEST WIND DIRECTION MM  
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM  
AVERAGE WIND SPEED MM  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST MM  
LOWEST MM  
AVERAGE MM  
   
......................................................
 
 
THE OTTUMWA IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 84 104 1936  
MINIMUM TEMPERATURE (F) 61 48 1950  
 
SUNRISE AND SUNSET  
AUGUST 21 2026........SUNRISE 626 AM CDT SUNSET 759 PM CDT  
AUGUST 22 2026........SUNRISE 627 AM CDT SUNSET 758 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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