063  
CDUS43 KDMX 170634  
CLIOTM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
134 AM CDT THU SEP 17 2026  
   
...............................  
 
   
..THE OTTUMWA IA CLIMATE SUMMARY FOR SEPTEMBER 16 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 94 1931 78 MM 90  
MINIMUM MM MM 32 1937 53 MM 65  
AVERAGE MM 65 MM 78  
 
PRECIPITATION (IN)  
YESTERDAY MM 1.50 1968 0.11 MM T  
MONTH TO DATE T 1.98 -1.98 0.24  
SINCE SEP 1 T 1.98 -1.98 0.24  
SINCE JAN 1 19.26 29.11 -9.85 16.81  
 
DEGREE DAYS  
HEATING  
YESTERDAY MM 3 MM 0  
MONTH TO DATE MM 30 MM 38  
SINCE SEP 1 MM 30 MM 38  
SINCE JUL 1 0 39 -39 49  
 
COOLING  
YESTERDAY MM 4 MM 13  
MONTH TO DATE MM 75 MM 86  
SINCE SEP 1 MM 75 MM 86  
SINCE JAN 1 997 938 59 962    
...............................................................  
 
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) 77 98 1927  
MINIMUM TEMPERATURE (F) 53 34 1937  
 
SUNRISE AND SUNSET  
SEPTEMBER 17 2026.....SUNRISE 652 AM CDT SUNSET 715 PM CDT  
SEPTEMBER 18 2026.....SUNRISE 653 AM CDT SUNSET 714 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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