570  
CDUS43 KDMX 300634  
CLIMCW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
134 AM CDT SAT SEP 30 2023  
   
...............................
 
 
   
..THE MASON CITY IA CLIMATE SUMMARY FOR SEPTEMBER 29 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 88R 346 PM 88 1922 69 19 68  
MINIMUM 59 159 AM 24 1945 43 16 30  
AVERAGE 74 56 18 49  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.06 1973 0.10 -0.10 0.00  
MONTH TO DATE 2.05 3.34 -1.29 1.26  
SINCE SEP 1 2.05 3.34 -1.29 1.26  
SINCE JAN 1 20.72 30.65 -9.93 26.52  
 
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 10 -10 16  
MONTH TO DATE 55 152 -97 137  
SINCE SEP 1 55 152 -97 137  
SINCE JUL 1 78 188 -110 137  
 
COOLING  
YESTERDAY 9 1 8 0  
MONTH TO DATE 84 56 28 53  
SINCE SEP 1 84 56 28 53  
SINCE JAN 1 701 595 106 673    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION SE (150)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION SE (150)  
AVERAGE WIND SPEED 14.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 300 AM  
LOWEST 40 300 PM  
AVERAGE 65  
   
......................................................
 
 
THE MASON CITY IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 91 1952  
MINIMUM TEMPERATURE (F) 43 15 1899  
 
SUNRISE AND SUNSET  
SEPTEMBER 30 2023.....SUNRISE 709 AM CDT SUNSET 657 PM CDT  
OCTOBER 1 2023.......SUNRISE 710 AM CDT SUNSET 655 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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