859  
CDUS43 KDMX 210634  
CLIMCW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
134 AM CDT THU OCT 21 2021  
   
...............................
 
 
   
..THE MASON CITY IA CLIMATE SUMMARY FOR OCTOBER 20 2021
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1893 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 61 348 PM 88 1947 58 3 40  
MINIMUM 44 1144 PM 15 1960 35 9 33  
AVERAGE 53 46 7 37  
 
PRECIPITATION (IN)  
YESTERDAY 0.04 1.30 1916 0.08 -0.04 0.04  
MONTH TO DATE 0.78 1.77 -0.99 0.25  
SINCE SEP 1 2.74 5.22 -2.48 3.28  
SINCE JAN 1 26.20 32.53 -6.33 25.60  
 
SNOWFALL (IN)  
YESTERDAY 0.0 13.0 1916 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 12 19 -7 28  
MONTH TO DATE 130 289 -159 327  
SINCE SEP 1 206 453 -247 496  
SINCE JUL 1 211 489 -278 527  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 15 2 13 5  
SINCE SEP 1 61 59 2 37  
SINCE JAN 1 802 598 204 748    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 11.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 500 PM  
LOWEST 74 1200 AM  
AVERAGE 82  
   
......................................................
 
 
THE MASON CITY IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 57 90 1947  
MINIMUM TEMPERATURE (F) 35 13 1930  
 
SUNRISE AND SUNSET  
OCTOBER 21 2021.......SUNRISE 735 AM CDT SUNSET 620 PM CDT  
OCTOBER 22 2021.......SUNRISE 736 AM CDT SUNSET 619 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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