730  
CDUS43 KDMX 250637  
CLIMCW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
137 AM CDT SUN MAY 25 2025  
   
...............................
 
 
   
..THE MASON CITY IA CLIMATE SUMMARY FOR MAY 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 63 307 PM 92 1939 73 -10 73  
2010  
MINIMUM 47 1159 PM 32 1924 50 -3 47  
1930  
AVERAGE 55 61 -6 60  
 
PRECIPITATION (IN)  
YESTERDAY T 2.27 1914 0.17 -0.17 0.77  
MONTH TO DATE 1.81 3.93 -2.12 7.09  
SINCE MAR 1 10.22 10.37 -0.15 13.78  
SINCE JAN 1 10.56 12.48 -1.92 14.76  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1925 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.3 -0.3 0.0  
SINCE MAR 1 11.4 10.3 1.1 4.5  
SINCE JUL 1 20.3 44.4 -24.1 17.8  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 10 5 5 5  
MONTH TO DATE 171 215 -44 146  
SINCE MAR 1 1459 1785 -326 1497  
SINCE JUL 1 6711 7576 -865 6263  
 
COOLING  
YESTERDAY 0 2 -2 0  
MONTH TO DATE 24 19 5 13  
SINCE MAR 1 24 22 2 13  
SINCE JAN 1 24 22 2 13    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 6.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 80 1100 PM  
LOWEST 36 1200 PM  
AVERAGE 58  
   
......................................................
 
 
THE MASON CITY IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 94 1967  
1978  
MINIMUM TEMPERATURE (F) 51 29 1925  
 
SUNRISE AND SUNSET  
MAY 25 2025...........SUNRISE 540 AM CDT SUNSET 841 PM CDT  
MAY 26 2025...........SUNRISE 540 AM CDT SUNSET 842 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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