422  
CDUS43 KDMX 200641  
CLIMCW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
141 AM CDT WED SEP 20 2023  
   
...............................
 
 
   
..THE MASON CITY IA CLIMATE SUMMARY FOR SEPTEMBER 19 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 84 1259 PM 95 1948 73 11 80  
MINIMUM 54 541 AM 25 1894 48 6 47  
AVERAGE 69 60 9 64  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 4.57 1983 0.11 -0.11 0.03  
MONTH TO DATE 0.23 2.22 -1.99 1.10  
SINCE SEP 1 0.23 2.22 -1.99 1.10  
SINCE JAN 1 18.90 29.53 -10.63 26.36  
 
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 1  
MONTH TO DATE 51 73 -22 35  
SINCE SEP 1 51 73 -22 35  
SINCE JUL 1 74 109 -35 35  
 
COOLING  
YESTERDAY 4 2 2 0  
MONTH TO DATE 65 46 19 38  
SINCE SEP 1 65 46 19 38  
SINCE JAN 1 682 585 97 658    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 8.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 700 AM  
LOWEST 42 100 PM  
AVERAGE 65  
   
......................................................
 
 
THE MASON CITY IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 92 2022  
MINIMUM TEMPERATURE (F) 47 28 1897  
 
SUNRISE AND SUNSET  
SEPTEMBER 20 2023.....SUNRISE 658 AM CDT SUNSET 715 PM CDT  
SEPTEMBER 21 2023.....SUNRISE 659 AM CDT SUNSET 713 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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