670  
CDUS43 KDMX 160628 RRA  
CLIMCW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
1227 AM CST SUN DEC 16 2018  
 
   
...............................
 
 
   
..THE MASON CITY IA CLIMATE SUMMARY FOR DECEMBER 15 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 41 226 PM 53 1939 28 13 41  
MINIMUM 16 729 AM -20 1922 11 5 22  
AVERAGE 29 19 10 32  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.80 2012 0.04 -0.04 T  
MONTH TO DATE 0.68 0.67 0.01 0.02  
SINCE DEC 1 0.68 0.67 0.01 0.02  
SINCE JAN 1 48.99 34.63 14.36 30.48  
 
SNOWFALL (IN)  
YESTERDAY 0.0 5.0 1940 0.3 -0.3 T  
MONTH TO DATE 2.7 4.5 -1.8 0.2  
SINCE DEC 1 2.7 4.5 -1.8 0.2  
SINCE JUL 1 7.3 9.2 -1.9 0.4  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 36 46 -10 33  
MONTH TO DATE 626 649 -23 547  
SINCE DEC 1 626 649 -23 547  
SINCE JUL 1 2532 2329 203 2050  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 848 616 232 603    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION S (160)  
AVERAGE WIND SPEED 5.6  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 300 AM  
LOWEST 76 100 PM  
AVERAGE 88  
   
......................................................
 
 
 
THE MASON CITY IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 27 61 1939  
MINIMUM TEMPERATURE (F) 11 -21 1932  
 
 
SUNRISE AND SUNSET  
DECEMBER 16 2018......SUNRISE 739 AM CST SUNSET 439 PM CST  
DECEMBER 17 2018......SUNRISE 740 AM CST SUNSET 439 PM CST  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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