388  
CDUS43 KDMX 180631  
CLIMCW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
131 AM CDT WED SEP 18 2024  
   
...............................
 
 
   
..THE MASON CITY IA CLIMATE SUMMARY FOR SEPTEMBER 17 2024
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1893 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 88 354 PM 94 1925 74 14 75  
MINIMUM 61 619 AM 31 1943 48 13 45  
AVERAGE 75 61 14 60  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.77 1977 0.11 -0.11 0.00  
MONTH TO DATE 0.42 1.99 -1.57 0.23  
SINCE SEP 1 0.42 1.99 -1.57 0.23  
SINCE JAN 1 28.68 29.30 -0.62 18.90  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2002 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE SEP 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 6 -6 5  
MONTH TO DATE 33 61 -28 46  
SINCE SEP 1 33 61 -28 46  
SINCE JUL 1 54 97 -43 69  
 
COOLING  
YESTERDAY 10 2 8 0  
MONTH TO DATE 50 42 8 61  
SINCE SEP 1 50 42 8 61  
SINCE JAN 1 569 581 -12 678    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION S (160)  
AVERAGE WIND SPEED 10.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 200 AM  
LOWEST 40 400 PM  
AVERAGE 69  
   
......................................................
 
 
THE MASON CITY IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 74 92 1947  
MINIMUM TEMPERATURE (F) 48 26 1929  
 
SUNRISE AND SUNSET  
SEPTEMBER 18 2024.....SUNRISE 657 AM CDT SUNSET 717 PM CDT  
SEPTEMBER 19 2024.....SUNRISE 658 AM CDT SUNSET 715 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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