601  
CDUS43 KGRR 110555  
CLIGRR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI  
1255 AM EST SUN DEC 11 2016  
 
   
...............................
 
 
   
..THE GRAND RAPIDS MI CLIMATE SUMMARY FOR DECEMBER 10 2016
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1892 TO 2016  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 24 324 PM 62 1971 36 -12 59  
MINIMUM 20 633 AM 5 1977 25 -5 36  
AVERAGE 22 31 -9 48  
 
PRECIPITATION (IN)  
YESTERDAY 0.14 2.13 1971 0.08 0.06 T  
MONTH TO DATE 0.85 0.89 -0.04 0.10  
SINCE DEC 1 0.85 0.89 -0.04 0.10  
SINCE JAN 1 44.18 36.66 7.52 29.88  
 
SNOWFALL (IN)  
YESTERDAY 4.5 7.2 2009 0.6 3.9 0.0  
MONTH TO DATE 14.7 5.7 9.0 T  
SINCE DEC 1 14.7 5.7 9.0 T  
SINCE JUL 1 15.5 13.0 2.5 3.5  
SNOW DEPTH 3  
 
DEGREE DAYS  
HEATING  
YESTERDAY 43 34 9 17  
MONTH TO DATE 333 327 6 255  
SINCE DEC 1 333 327 6 255  
SINCE JUL 1 1281 1665 -384 1313  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 936 699 237 642    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION W (260)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 7.2  
 
 
SKY COVER  
POSSIBLE SUNSHINE 0 PERCENT  
AVERAGE SKY COVER 0.9  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY SNOW  
SNOW  
LIGHT SNOW  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 600 AM  
LOWEST 74 200 AM  
AVERAGE 83  
   
......................................................
 
 
 
THE GRAND RAPIDS MI CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 36 63 1949  
MINIMUM TEMPERATURE (F) 25 -3 1962  
 
 
SUNRISE AND SUNSET  
DECEMBER 11 2016......SUNRISE 803 AM EST SUNSET 508 PM EST  
DECEMBER 12 2016......SUNRISE 804 AM EST SUNSET 508 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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