115  
CDUS43 KDMX 180636  
CLIMIW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
136 AM CDT MON AUG 18 2025  
   
...............................  
 
   
..THE MARSHALLTOWN IA CLIMATE SUMMARY FOR AUGUST 17 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 93 217 PM 81 12 79  
MINIMUM 71 505 AM 60 11 64  
AVERAGE 82 70 12 72  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.13 -0.13  
MONTH TO DATE 2.37 2.10 0.27  
SINCE JAN 1 27.85 22.58 5.27  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 1 0 1 6  
SINCE JUN 1 9 33 -24 9  
SINCE JUL 1 1 7 -6 8  
 
COOLING  
YESTERDAY 17 6 11 7  
MONTH TO DATE 132 112 20 109  
SINCE JUN 1 659 525 134 593  
SINCE JAN 1 684 579 105 632    
...................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 7.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 600 AM  
LOWEST 57 400 PM  
AVERAGE 79  
   
......................................................  
 
THE MARSHALLTOWN IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 MM MM  
MINIMUM TEMPERATURE (F) 59 MM MM  
 
SUNRISE AND SUNSET  
AUGUST 18 2025........SUNRISE 623 AM CDT SUNSET 807 PM CDT  
AUGUST 19 2025........SUNRISE 624 AM CDT SUNSET 806 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