660  
CDUS43 KDMX 010637  
CLIMCW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
137 AM CDT SUN OCT 01 2023  
   
...............................
 
 
   
..THE MASON CITY IA CLIMATE SUMMARY FOR SEPTEMBER 30 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 92R 148 PM 91 1952 68 24 71  
MINIMUM 63 1157 PM 15 1899 43 20 36  
AVERAGE 78 56 22 54  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.19 1925 0.11 -0.11 0.00  
MONTH TO DATE 2.05 3.45 -1.40 1.26  
SINCE SEP 1 2.05 3.45 -1.40 1.26  
SINCE JAN 1 20.72 30.76 -10.04 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 11  
MONTH TO DATE 55 162 -107 148  
SINCE SEP 1 55 162 -107 148  
SINCE JUL 1 78 198 -120 148  
 
COOLING  
YESTERDAY 13 1 12 0  
MONTH TO DATE 97 57 40 53  
SINCE SEP 1 97 57 40 53  
SINCE JAN 1 714 596 118 673    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION S (160)  
AVERAGE WIND SPEED 10.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 700 AM  
LOWEST 39 300 PM  
AVERAGE 63  
   
......................................................
 
 
THE MASON CITY IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 92 1976  
MINIMUM TEMPERATURE (F) 43 19 2003  
 
SUNRISE AND SUNSET  
OCTOBER 1 2023.......SUNRISE 710 AM CDT SUNSET 655 PM CDT  
OCTOBER 2 2023.......SUNRISE 712 AM CDT SUNSET 653 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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