556  
CDUS43 KDMX 200627  
CLIOTM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
127 AM CDT WED AUG 20 2025  
   
...............................
 
 
   
..THE OTTUMWA IA CLIMATE SUMMARY FOR AUGUST 19 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 85 1232 PM 105 1936 84 1 79  
MINIMUM 68 1159 PM 48 1950 62 6 58  
AVERAGE 77 73 4 69  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.38 1949 0.15 -0.15 0.00  
MONTH TO DATE 2.15 2.64 -0.49 1.10  
SINCE JUN 1 11.09 11.89 -0.80 10.26  
SINCE JAN 1 16.56 25.33 -8.77 27.07  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 6  
SINCE JUN 1 7 19 -12 7  
SINCE JUL 1 0 2 -2 6  
 
COOLING  
YESTERDAY 12 8 4 4  
MONTH TO DATE 177 172 5 124  
SINCE JUN 1 778 702 76 656  
SINCE JAN 1 829 780 49 714    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 5.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 300 AM  
LOWEST 63 1200 PM  
AVERAGE 82  
   
......................................................
 
 
THE OTTUMWA IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 84 103 1947  
MINIMUM TEMPERATURE (F) 62 41 1950  
 
SUNRISE AND SUNSET  
AUGUST 20 2025........SUNRISE 625 AM CDT SUNSET 801 PM CDT  
AUGUST 21 2025........SUNRISE 626 AM CDT SUNSET 759 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab IA Page Main Text Page