038  
CDUS43 KDMX 300637  
CLIOTM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
137 AM CDT SAT AUG 30 2025  
   
...............................  
 
   
..THE OTTUMWA IA CLIMATE SUMMARY FOR AUGUST 29 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 84 338 PM 98 1984 82 2 90  
MINIMUM 57 415 AM 42 1934 59 -2 70  
1946  
AVERAGE 71 71 0 80  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.71 1975 0.15 -0.15 T  
MONTH TO DATE 2.16 4.14 -1.98 1.65  
SINCE JUN 1 11.10 13.39 -2.29 10.81  
SINCE JAN 1 16.57 26.83 -10.26 27.62  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 11 1 10 8  
SINCE JUN 1 18 20 -2 9  
SINCE JUL 1 11 3 8 8  
 
COOLING  
YESTERDAY 6 6 0 15  
MONTH TO DATE 212 243 -31 214  
SINCE JUN 1 813 773 40 746  
SINCE JAN 1 864 851 13 804    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 3.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 600 AM  
LOWEST 43 300 PM  
AVERAGE 70  
   
......................................................  
 
THE OTTUMWA IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 104 1947  
MINIMUM TEMPERATURE (F) 59 46 1946  
 
SUNRISE AND SUNSET  
AUGUST 30 2025........SUNRISE 635 AM CDT SUNSET 745 PM CDT  
AUGUST 31 2025........SUNRISE 636 AM CDT SUNSET 743 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