100  
CDUS43 KDMX 170637  
CLIMCW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
137 AM CDT TUE OCT 17 2023  
   
...............................
 
 
   
..THE MASON CITY IA CLIMATE SUMMARY FOR OCTOBER 16 2023
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1893 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 60 311 PM 85 1938 60 0 50  
MINIMUM 35 659 AM 22 1943 37 -2 32  
AVERAGE 48 48 0 41  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.09 1928 0.08 -0.08 0.00  
MONTH TO DATE 1.75 1.45 0.30 0.21  
SINCE SEP 1 3.80 4.90 -1.10 1.47  
SINCE JAN 1 22.47 32.21 -9.74 26.73  
 
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 17 17 0 24  
MONTH TO DATE 204 217 -13 229  
SINCE SEP 1 259 381 -122 377  
SINCE JUL 1 282 417 -135 377  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 24 2 22 0  
SINCE SEP 1 121 59 62 53  
SINCE JAN 1 738 598 140 673    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION N (350)  
AVERAGE WIND SPEED 7.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 1000 PM  
LOWEST 51 400 PM  
AVERAGE 76  
   
......................................................
 
 
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 2023.......SUNRISE 729 AM CDT SUNSET 627 PM CDT  
OCTOBER 18 2023.......SUNRISE 730 AM CDT SUNSET 626 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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