083  
CDUS43 KDMX 170630  
CLIMCW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
130 AM CDT FRI OCT 17 2025  
   
...............................  
 
   
..THE MASON CITY IA CLIMATE SUMMARY FOR OCTOBER 16 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 72 433 PM 85 1938 60 12 61  
MINIMUM 55 804 AM 22 1943 37 18 23  
AVERAGE 64 48 16 42  
 
PRECIPITATION (IN)  
YESTERDAY 0.02 2.09 1928 0.08 -0.06 0.00  
MONTH TO DATE 1.10 1.45 -0.35 T  
SINCE SEP 1 2.22 4.90 -2.68 0.43  
SINCE JAN 1 34.04 32.21 1.83 28.69  
 
SNOWFALL (IN)  
YESTERDAY 0.0 5.5 1937 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.1 -0.1 0.0  
SINCE SEP 1 0.0 0.1 -0.1 0.0  
SINCE JUL 1 0.0 0.1 -0.1 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 1 17 -16 23  
MONTH TO DATE 108 217 -109 168  
SINCE SEP 1 184 381 -197 231  
SINCE JUL 1 214 417 -203 252  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 36 2 34 6  
SINCE SEP 1 122 59 63 97  
SINCE JAN 1 760 598 162 616    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION SE (150)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION SE (150)  
AVERAGE WIND SPEED 13.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 700 AM  
LOWEST 73 500 PM  
AVERAGE 87  
   
......................................................  
 
THE MASON CITY IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 59 85 1947  
MINIMUM TEMPERATURE (F) 36 18 1952  
 
SUNRISE AND SUNSET  
OCTOBER 17 2025.......SUNRISE 730 AM CDT SUNSET 627 PM CDT  
OCTOBER 18 2025.......SUNRISE 731 AM CDT SUNSET 625 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