422  
CDUS43 KDMX 200629  
CLIOTM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
129 AM CDT TUE MAY 20 2025  
   
...............................  
 
   
..THE OTTUMWA IA CLIMATE SUMMARY FOR MAY 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 64 141 PM 90 1934 74 -10 85  
1962  
1998  
MINIMUM 51 948 AM 34 2002 52 -1 56  
AVERAGE 58 63 -5 71  
 
PRECIPITATION (IN)  
YESTERDAY 0.54 1.16 1984 0.16 0.38 0.00  
MONTH TO DATE 0.66 3.03 -2.37 3.80  
SINCE MAR 1 3.86 9.02 -5.16 11.78  
SINCE JAN 1 5.30 11.44 -6.14 15.41  
 
DEGREE DAYS  
HEATING  
YESTERDAY 7 4 3 0  
MONTH TO DATE 91 126 -35 65  
SINCE MAR 1 1029 1343 -314 1064  
SINCE JUL 1 5468 6094 -626 5074  
 
COOLING  
YESTERDAY 0 2 -2 6  
MONTH TO DATE 30 27 3 22  
SINCE MAR 1 47 38 9 35  
SINCE JAN 1 47 38 9 35    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 17.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 700 PM  
LOWEST 52 1200 AM  
AVERAGE 75  
   
......................................................  
 
THE OTTUMWA IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 74 90 1934  
1941  
1987  
MINIMUM TEMPERATURE (F) 53 38 1931  
2002  
 
SUNRISE AND SUNSET  
MAY 20 2025...........SUNRISE 547 AM CDT SUNSET 826 PM CDT  
MAY 21 2025...........SUNRISE 546 AM CDT SUNSET 827 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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