323  
CDUS43 KDMX 140631  
CLIMCW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
131 AM CDT MON SEP 14 2026  
   
...............................
 
 
   
..THE MASON CITY IA CLIMATE SUMMARY FOR SEPTEMBER 13 2026
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1893 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 70 352 PM 95 1939 75 -5 93  
MINIMUM 47 503 AM 31 2014 50 -3 61  
AVERAGE 59 63 -4 77  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 4.35 1930 0.12 -0.11 0.00  
MONTH TO DATE 0.76 1.54 -0.78 0.36  
SINCE SEP 1 0.76 1.54 -0.78 0.36  
SINCE JAN 1 23.03 28.85 -5.82 32.18  
 
SNOWFALL (IN)  
YESTERDAY MM MM MM 0.0 MM 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 MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 6 4 2 0  
MONTH TO DATE 9 40 -31 62  
SINCE SEP 1 9 40 -31 62  
SINCE JUL 1 12 76 -64 92  
 
COOLING  
YESTERDAY 0 2 -2 12  
MONTH TO DATE 91 34 57 22  
SINCE SEP 1 91 34 57 22  
SINCE JAN 1 743 573 170 660    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 3.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 1000 PM  
LOWEST 47 300 PM  
AVERAGE 70  
   
......................................................
 
 
THE MASON CITY IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 95 1939  
MINIMUM TEMPERATURE (F) 50 28 1923  
 
SUNRISE AND SUNSET  
SEPTEMBER 14 2026.....SUNRISE 652 AM CDT SUNSET 725 PM CDT  
SEPTEMBER 15 2026.....SUNRISE 653 AM CDT SUNSET 723 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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