009  
CDUS43 KGRR 170520  
CLIGRR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI  
1220 AM EST WED JAN 17 2018  
 
   
...............................
 
 
   
..THE GRAND RAPIDS MI CLIMATE SUMMARY FOR JANUARY 16 2018
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1892 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 19 403 PM 58 1949 31 -12 33  
MINIMUM 10 1159 PM -16 1994 18 -8 20  
1972  
AVERAGE 15 24 -9 27  
 
PRECIPITATION (IN)  
YESTERDAY 0.04 0.60 1980 0.07 -0.03 0.43  
MONTH TO DATE 1.11 1.19 -0.08 1.96  
SINCE DEC 1 3.07 3.69 -0.62 4.92  
SINCE JAN 1 1.11 1.19 -0.08 1.96  
 
SNOWFALL (IN)  
YESTERDAY 1.6 5.5 1924 0.6 1.0 T  
MONTH TO DATE 10.7 11.2 -0.5 7.8  
SINCE DEC 1 43.6 33.1 10.5 44.8  
SINCE JUL 1 44.2 40.4 3.8 45.6  
SNOW DEPTH 4  
 
DEGREE DAYS  
HEATING  
YESTERDAY 50 41 9 38  
MONTH TO DATE 743 647 96 651  
SINCE DEC 1 1995 1758 237 1807  
SINCE JUL 1 3186 3096 90 2755  
 
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)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION SW (230)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 6.3  
 
 
SKY COVER  
POSSIBLE SUNSHINE 57 PERCENT  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT SNOW  
FOG  
HAZE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88 200 AM  
LOWEST 73 100 PM  
AVERAGE 81  
   
......................................................
 
 
 
THE GRAND RAPIDS MI CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 30 56 1952  
MINIMUM TEMPERATURE (F) 18 -10 1976  
 
 
SUNRISE AND SUNSET  
JANUARY 17 2018.......SUNRISE 809 AM EST SUNSET 536 PM EST  
JANUARY 18 2018.......SUNRISE 808 AM EST SUNSET 537 PM EST  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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