603  
CDUS43 KDMX 040629  
CLIOTM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
129 AM CDT FRI SEP 04 2026  
   
...............................
 
 
   
..THE OTTUMWA IA CLIMATE SUMMARY FOR SEPTEMBER 3 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 100 1925 81 MM 74  
MINIMUM MM MM 40 1974 58 MM 49  
AVERAGE MM 70 MM 62  
 
PRECIPITATION (IN)  
YESTERDAY MM 3.65 1926 0.12 MM 0.24  
MONTH TO DATE T 0.39 -0.39 0.24  
SINCE SEP 1 T 0.39 -0.39 0.24  
SINCE JAN 1 19.26 27.52 -8.26 16.81  
 
DEGREE DAYS  
HEATING  
YESTERDAY MM 1 MM 3  
MONTH TO DATE MM 3 MM 3  
SINCE SEP 1 MM 3 MM 3  
SINCE JUL 1 0 12 -12 14  
 
COOLING  
YESTERDAY MM 6 MM 0  
MONTH TO DATE MM 18 MM 4  
SINCE SEP 1 MM 18 MM 4  
SINCE JAN 1 997 881 116 880    
...............................................................
 
 
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) 81 103 1925  
MINIMUM TEMPERATURE (F) 57 43 1974  
2025  
 
SUNRISE AND SUNSET  
SEPTEMBER 4 2026.....SUNRISE 639 AM CDT SUNSET 737 PM CDT  
SEPTEMBER 5 2026.....SUNRISE 640 AM CDT SUNSET 736 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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