343  
CDUS43 KDMX 200629  
CLIMCW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
129 AM CDT TUE MAY 20 2025  
   
...............................  
 
   
..THE MASON CITY IA CLIMATE SUMMARY FOR MAY 19 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 63 355 PM 97 1934 71 -8 72  
MINIMUM 47 919 AM 27 1929 48 -1 44  
AVERAGE 55 60 -5 58  
 
PRECIPITATION (IN)  
YESTERDAY 0.09 1.31 2013 0.17 -0.08 T  
MONTH TO DATE 0.14 3.10 -2.96 4.55  
SINCE MAR 1 8.55 9.54 -0.99 11.24  
SINCE JAN 1 8.89 11.65 -2.76 12.22  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1924 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 7 3 7  
MONTH TO DATE 109 186 -77 133  
SINCE MAR 1 1397 1756 -359 1484  
SINCE JUL 1 6649 7547 -898 6250  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 24 10 14 8  
SINCE MAR 1 24 13 11 8  
SINCE JAN 1 24 13 11 8    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 35 HIGHEST WIND DIRECTION E (100)  
HIGHEST GUST SPEED 46 HIGHEST GUST DIRECTION E (110)  
AVERAGE WIND SPEED 22.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 1000 PM  
LOWEST 48 400 PM  
AVERAGE 69  
   
......................................................  
 
THE MASON CITY IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 96 1934  
MINIMUM TEMPERATURE (F) 49 28 1907  
 
SUNRISE AND SUNSET  
MAY 20 2025...........SUNRISE 545 AM CDT SUNSET 836 PM CDT  
MAY 21 2025...........SUNRISE 544 AM CDT SUNSET 837 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab IA Page
Main Text Page