938  
CDUS43 KDMX 190637  
CLIMCW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
1237 AM CST THU DEC 19 2024  
   
...............................
 
 
   
..THE MASON CITY IA CLIMATE SUMMARY FOR DECEMBER 18 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 27 134 AM 61 1923 29 -2 28  
MINIMUM 18 707 AM -26 1983 13 5 9  
AVERAGE 23 21 2 19  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.00 1930 0.04 -0.04 0.00  
MONTH TO DATE 0.09 0.78 -0.69 0.11  
SINCE DEC 1 0.09 0.78 -0.69 0.11  
SINCE JAN 1 32.84 35.74 -2.90 24.40  
 
SNOWFALL (IN)  
YESTERDAY 0.0 5.2 1968 0.3 -0.3 0.0  
MONTH TO DATE 0.6 5.0 -4.4 T  
SINCE DEC 1 0.6 5.0 -4.4 T  
SINCE JUL 1 1.1 8.4 -7.3 1.9  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 42 44 -2 46  
MONTH TO DATE 745 743 2 636  
SINCE DEC 1 745 743 2 636  
SINCE JUL 1 1963 2400 -437 2018  
 
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 21 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 11.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 900 AM  
LOWEST 74 700 PM  
AVERAGE 85  
   
......................................................
 
 
THE MASON CITY IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 28 48 1917  
1923  
1979  
MINIMUM TEMPERATURE (F) 13 -26 1983  
 
SUNRISE AND SUNSET  
DECEMBER 19 2024......SUNRISE 741 AM CST SUNSET 440 PM CST  
DECEMBER 20 2024......SUNRISE 742 AM CST SUNSET 441 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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