296  
CDUS43 KDMX 290628  
CLIOTM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
128 AM CDT MON SEP 29 2025  
   
...............................
 
 
   
..THE OTTUMWA IA CLIMATE SUMMARY FOR SEPTEMBER 28 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 88 325 PM 99 1953 73 15 85  
MINIMUM 56 549 AM 23 1942 49 7 56  
AVERAGE 72 61 11 71  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.32 1954 0.10 -0.10 0.00  
MONTH TO DATE 0.83 3.30 -2.47 0.71  
SINCE SEP 1 0.83 3.30 -2.47 0.71  
SINCE JAN 1 17.40 30.43 -13.03 28.68  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 6 -6 0  
MONTH TO DATE 39 86 -47 42  
SINCE SEP 1 39 86 -47 42  
SINCE JUL 1 50 95 -45 50  
 
COOLING  
YESTERDAY 7 2 5 6  
MONTH TO DATE 138 104 34 105  
SINCE SEP 1 138 104 34 105  
SINCE JAN 1 1014 967 47 915    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 6.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 600 AM  
LOWEST 38 300 PM  
AVERAGE 63  
   
......................................................
 
 
THE OTTUMWA IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 93 1953  
MINIMUM TEMPERATURE (F) 48 27 1984  
 
SUNRISE AND SUNSET  
SEPTEMBER 29 2025.....SUNRISE 705 AM CDT SUNSET 654 PM CDT  
SEPTEMBER 30 2025.....SUNRISE 706 AM CDT SUNSET 653 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