871  
CDUS43 KDMX 170650 RRB  
CLIMCW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
1249 AM CST WED JAN 17 2018  
 
   
...............................
 
 
   
..THE MASON CITY IA CLIMATE SUMMARY FOR JANUARY 16 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 5 304 PM 44 1990 24 -19 32  
MINIMUM -8 1219 AM -31 2009 7 -15 23  
AVERAGE -1 16 -17 28  
 
PRECIPITATION (IN)  
YESTERDAY T 1.10 1897 0.03 -0.03 0.30  
MONTH TO DATE 0.10 0.42 -0.32 0.64  
SINCE DEC 1 0.38 1.66 -1.28 2.80  
SINCE JAN 1 0.10 0.42 -0.32 0.64  
 
SNOWFALL (IN)  
YESTERDAY T 5.0 1930 0.4 -0.4 0.0  
MONTH TO DATE 3.2 5.3 -2.1 0.6  
SINCE DEC 1 7.4 14.6 -7.2 15.5  
SINCE JUL 1 7.6 19.3 -11.7 15.5  
SNOW DEPTH 4  
 
DEGREE DAYS  
HEATING  
YESTERDAY 66 49 17 37  
MONTH TO DATE 936 784 152 833  
SINCE DEC 1 2321 2193 128 2224  
SINCE JUL 1 3824 3873 -49 3388  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 13.2  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT SNOW  
FOG  
HAZE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 200 PM  
LOWEST 71 1200 AM  
AVERAGE 79  
   
......................................................
 
 
 
THE MASON CITY IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 25 49 1996  
MINIMUM TEMPERATURE (F) 7 -24 1930  
 
 
SUNRISE AND SUNSET  
JANUARY 17 2018.......SUNRISE 741 AM CST SUNSET 506 PM CST  
JANUARY 18 2018.......SUNRISE 740 AM CST SUNSET 507 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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