228  
CDUS43 KDMX 200640  
CLIMCW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
1240 AM CST FRI DEC 20 2024  
   
...............................
 
 
   
..THE MASON CITY IA CLIMATE SUMMARY FOR DECEMBER 19 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 33 323 PM 48 1917 28 5 38  
1923  
1979  
MINIMUM 21 304 AM -26 1983 13 8 9  
AVERAGE 27 20 7 24  
 
PRECIPITATION (IN)  
YESTERDAY 0.04 0.63 2008 0.05 -0.01 0.00  
MONTH TO DATE 0.13 0.83 -0.70 0.11  
SINCE DEC 1 0.13 0.83 -0.70 0.11  
SINCE JAN 1 32.88 35.79 -2.91 24.40  
 
SNOWFALL (IN)  
YESTERDAY MM 8.2 2008 0.3 MM 0.0  
MONTH TO DATE 0.6 5.3 -4.7 T  
SINCE DEC 1 0.6 5.3 -4.7 T  
SINCE JUL 1 1.1 8.7 -7.6 1.9  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 38 45 -7 41  
MONTH TO DATE 783 788 -5 677  
SINCE DEC 1 783 788 -5 677  
SINCE JUL 1 2001 2445 -444 2059  
 
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 29 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 16.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LT FREEZING RAIN  
SNOW  
LIGHT SNOW  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 200 PM  
LOWEST 77 1200 AM  
AVERAGE 87  
   
......................................................
 
 
THE MASON CITY IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 28 50 1918  
MINIMUM TEMPERATURE (F) 12 -25 1983  
 
SUNRISE AND SUNSET  
DECEMBER 20 2024......SUNRISE 742 AM CST SUNSET 441 PM CST  
DECEMBER 21 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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