249  
CDUS43 KDMX 180632  
CLIDSM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
132 AM CDT THU SEP 18 2025  
   
...............................  
 
   
..THE DES MOINES IA CLIMATE SUMMARY FOR SEPTEMBER 17 2025  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1878 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 81 1220 PM 95 1925 77 4 89  
MINIMUM 65 1159 PM 37 1901 55 10 67  
AVERAGE 73 66 7 78  
 
PRECIPITATION (IN)  
YESTERDAY 0.54 1.52 1919 0.11 0.43 0.00  
MONTH TO DATE 1.04 1.88 -0.84 T  
SINCE SEP 1 1.04 1.88 -0.84 T  
SINCE JAN 1 29.86 28.98 0.88 29.33  
 
SNOWFALL (IN)  
YESTERDAY 0.0 MM MM 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE SEP 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 3 -3 0  
MONTH TO DATE 29 29 0 4  
SINCE SEP 1 29 29 0 4  
SINCE JUL 1 37 34 3 4  
 
COOLING  
YESTERDAY 8 4 4 13  
MONTH TO DATE 107 87 20 109  
SINCE SEP 1 107 87 20 109  
SINCE JAN 1 1135 1022 113 1189    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION NE (30)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 5.8  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 500 PM  
LOWEST 58 1200 PM  
AVERAGE 76  
   
......................................................  
 
THE DES MOINES IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 94 1895  
MINIMUM TEMPERATURE (F) 55 36 1901  
1916  
 
SUNRISE AND SUNSET  
SEPTEMBER 18 2025.....SUNRISE 658 AM CDT SUNSET 718 PM CDT  
SEPTEMBER 19 2025.....SUNRISE 659 AM CDT SUNSET 716 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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