090  
CDUS43 KDMX 180630 RRB  
CLIMCW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
129 AM CDT TUE SEP 18 2018  
 
   
...............................
 
 
   
..THE MASON CITY IA CLIMATE SUMMARY FOR SEPTEMBER 17 2018
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1893 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 92 147 PM 94 1925 73 19 70  
MINIMUM 62 1159 PM 31 1943 48 14 50  
AVERAGE 77 60 17 60  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 2.77 1977 0.10 -0.09 0.03  
MONTH TO DATE 1.84 1.90 -0.06 1.61  
SINCE SEP 1 1.84 1.90 -0.06 1.61  
SINCE JAN 1 36.80 28.26 8.54 24.53  
 
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 5  
MONTH TO DATE 26 65 -39 39  
SINCE SEP 1 26 65 -39 39  
SINCE JUL 1 42 101 -59 62  
 
COOLING  
YESTERDAY 12 1 11 0  
MONTH TO DATE 92 42 50 45  
SINCE SEP 1 92 42 50 45  
SINCE JAN 1 834 598 236 544    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 40 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 52 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 8.3  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
HAZE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 300 AM  
LOWEST 49 200 PM  
AVERAGE 75  
   
......................................................
 
 
 
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 2018.....SUNRISE 656 AM CDT SUNSET 718 PM CDT  
SEPTEMBER 19 2018.....SUNRISE 657 AM CDT SUNSET 716 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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