951  
CDUS43 KDMX 180628 RRA  
CLIMCW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
126 AM CDT FRI SEP 18 2020  
   
...............................
 
 
   
..THE MASON CITY IA CLIMATE SUMMARY FOR SEPTEMBER 17 2020
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1893 TO 2020  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 67 339 PM 94 1925 73 -6 88  
MINIMUM 42 630 AM 31 1943 48 -6 66  
AVERAGE 55 60 -5 77  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.77 1977 0.10 -0.10 0.00  
MONTH TO DATE 2.92 1.90 1.02 2.60  
SINCE SEP 1 2.92 1.90 1.02 2.60  
SINCE JAN 1 25.24 28.26 -3.02 25.00  
 
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 10 6 4 0  
MONTH TO DATE 105 65 40 24  
SINCE SEP 1 105 65 40 24  
SINCE JUL 1 136 101 35 44  
 
COOLING  
YESTERDAY 0 1 -1 12  
MONTH TO DATE 19 42 -23 59  
SINCE SEP 1 19 42 -23 59  
SINCE JAN 1 730 598 132 554    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 6.9  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 100 AM  
LOWEST 29 300 PM  
AVERAGE 65  
   
......................................................
 
 
 
THE MASON CITY IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 92 1947  
MINIMUM TEMPERATURE (F) 47 26 1929  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 18 2020.....SUNRISE 657 AM CDT SUNSET 717 PM CDT  
SEPTEMBER 19 2020.....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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