553  
CDUS43 KDMX 310639  
CLIMIW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
139 AM CDT SUN AUG 31 2025  
   
...............................  
 
   
..THE MARSHALLTOWN IA CLIMATE SUMMARY FOR AUGUST 30 2025  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 9999 TO 9999  
 
WEATHER ITEM OBSERVED TIME NORMAL DEPARTURE LAST  
VALUE (LST) VALUE FROM YEAR  
NORMAL    
...................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 80 240 PM 79 1 80  
MINIMUM 60 541 AM 56 4 60  
AVERAGE 70 68 2 70  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 0.13 -0.12  
MONTH TO DATE 3.00 3.76 -0.76  
SINCE JAN 1 28.48 24.24 4.24  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 18 12 6 7  
SINCE JUN 1 26 45 -19 10  
SINCE JUL 1 18 19 -1 9  
 
COOLING  
YESTERDAY 5 4 1 5  
MONTH TO DATE 189 175 14 224  
SINCE JUN 1 716 588 128 708  
SINCE JAN 1 741 642 99 747    
...................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 7.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 200 AM  
LOWEST 65 100 PM  
AVERAGE 83  
   
......................................................  
 
THE MARSHALLTOWN IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 MM MM  
MINIMUM TEMPERATURE (F) 56 MM MM  
 
SUNRISE AND SUNSET  
AUGUST 31 2025........SUNRISE 636 AM CDT SUNSET 746 PM CDT  
SEPTEMBER 1 2025.....SUNRISE 638 AM CDT SUNSET 745 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