291  
CDUS43 KDMX 170633  
CLIMCW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
1233 AM CST TUE DEC 17 2024  
   
...............................
 
 
   
..THE MASON CITY IA CLIMATE SUMMARY FOR DECEMBER 16 2024
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1893 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 45 105 PM 61 1939 29 16 41  
MINIMUM 27 1148 PM -21 1932 13 14 35  
AVERAGE 36 21 15 38  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.50 1908 0.04 -0.04 0.11  
MONTH TO DATE 0.02 0.70 -0.68 0.11  
SINCE DEC 1 0.02 0.70 -0.68 0.11  
SINCE JAN 1 32.77 35.66 -2.89 24.40  
 
SNOWFALL (IN)  
YESTERDAY 0.0 5.0 1940 0.3 -0.3 0.0  
MONTH TO DATE 0.6 4.3 -3.7 T  
SINCE DEC 1 0.6 4.3 -3.7 T  
SINCE JUL 1 1.1 7.7 -6.6 1.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 29 44 -15 27  
MONTH TO DATE 667 655 12 558  
SINCE DEC 1 667 655 12 558  
SINCE JUL 1 1885 2312 -427 1940  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 626 602 24 743    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 42 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 15.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 1200 AM  
LOWEST 60 200 PM  
AVERAGE 80  
   
......................................................
 
 
THE MASON CITY IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 29 57 1939  
MINIMUM TEMPERATURE (F) 13 -18 1983  
 
SUNRISE AND SUNSET  
DECEMBER 17 2024......SUNRISE 740 AM CST SUNSET 440 PM CST  
DECEMBER 18 2024......SUNRISE 740 AM CST SUNSET 440 PM CST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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