112  
CDUS43 KDMX 210633  
CLIMCW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
133 AM CDT THU SEP 21 2023  
   
...............................
 
 
   
..THE MASON CITY IA CLIMATE SUMMARY FOR SEPTEMBER 20 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 83 1252 PM 92 2022 73 10 92  
MINIMUM 51 423 AM 28 1897 47 4 67  
AVERAGE 67 60 7 80  
 
PRECIPITATION (IN)  
YESTERDAY 0.32 2.27 2018 0.12 0.20 0.00  
MONTH TO DATE 0.55 2.34 -1.79 1.10  
SINCE SEP 1 0.55 2.34 -1.79 1.10  
SINCE JAN 1 19.22 29.65 -10.43 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 0  
MONTH TO DATE 51 79 -28 35  
SINCE SEP 1 51 79 -28 35  
SINCE JUL 1 74 115 -41 35  
 
COOLING  
YESTERDAY 2 1 1 15  
MONTH TO DATE 67 47 20 53  
SINCE SEP 1 67 47 20 53  
SINCE JAN 1 684 586 98 673    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 7.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 700 AM  
LOWEST 47 100 PM  
AVERAGE 72  
   
......................................................
 
 
THE MASON CITY IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 93 1937  
MINIMUM TEMPERATURE (F) 47 29 1999  
 
SUNRISE AND SUNSET  
SEPTEMBER 21 2023.....SUNRISE 659 AM CDT SUNSET 713 PM CDT  
SEPTEMBER 22 2023.....SUNRISE 700 AM CDT SUNSET 711 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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