882  
CDUS43 KDMX 250640  
CLIMCW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
140 AM CDT THU SEP 25 2025  
   
...............................  
 
   
..THE MASON CITY IA CLIMATE SUMMARY FOR SEPTEMBER 24 2025  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1893 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 77 236 PM 90 2017 71 6 74  
MINIMUM 51 1159 PM 29 1950 46 5 40  
AVERAGE 64 58 6 57  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.70 1972 0.12 -0.12 T  
MONTH TO DATE 1.12 2.80 -1.68 0.43  
SINCE SEP 1 1.12 2.80 -1.68 0.43  
SINCE JAN 1 32.94 30.11 2.83 28.69  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1926 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 1 8 -7 8  
MONTH TO DATE 69 108 -39 60  
SINCE SEP 1 69 108 -39 60  
SINCE JUL 1 99 144 -45 81  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 72 51 21 83  
SINCE SEP 1 72 51 21 83  
SINCE JAN 1 710 590 120 602    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION N (10)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 4.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 1200 AM  
LOWEST 45 300 PM  
AVERAGE 73  
   
......................................................  
 
THE MASON CITY IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 88 1920  
MINIMUM TEMPERATURE (F) 45 26 1942  
 
SUNRISE AND SUNSET  
SEPTEMBER 25 2025.....SUNRISE 704 AM CDT SUNSET 705 PM CDT  
SEPTEMBER 26 2025.....SUNRISE 705 AM CDT SUNSET 703 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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