991  
CDUS43 KGRR 120520  
CLIMKG  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI  
1219 AM EST THU DEC 12 2019  
 
   
...............................
 
 
   
..THE MUSKEGON MI CLIMATE SUMMARY FOR DECEMBER 11 2019
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1896 TO 2019  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 22 257 AM 60 1949 36 -14 35  
MINIMUM 12 1042 PM 2 1958 27 -15 31  
AVERAGE 17 31 -14 33  
 
PRECIPITATION (IN)  
YESTERDAY T 1.18 1949 0.09 -0.09 0.00  
MONTH TO DATE 1.29 1.03 0.26 0.90  
SINCE DEC 1 1.29 1.03 0.26 0.90  
SINCE JAN 1 45.45 31.97 13.48 40.94  
 
SNOWFALL (IN)  
YESTERDAY T 10.8 2000 0.9 -0.9 0.0  
MONTH TO DATE 4.4 8.7 -4.3 1.8  
SINCE DEC 1 4.4 8.7 -4.3 1.8  
SINCE JUL 1 15.3 14.9 0.4 14.3  
SNOW DEPTH 2  
 
DEGREE DAYS  
HEATING  
YESTERDAY 48 34 14 32  
MONTH TO DATE 351 355 -4 366  
SINCE DEC 1 351 355 -4 366  
SINCE JUL 1 1721 1722 -1 1782  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 640 566 74 912    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION W (270)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 11.5  
 
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT SNOW  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 80 1000 PM  
LOWEST 56 1100 AM  
AVERAGE 68  
   
......................................................
 
 
 
THE MUSKEGON MI CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 36 57 1899  
MINIMUM TEMPERATURE (F) 26 -5 1958  
 
 
SUNRISE AND SUNSET  
DECEMBER 12 2019......SUNRISE 807 AM EST SUNSET 510 PM EST  
DECEMBER 13 2019......SUNRISE 808 AM EST SUNSET 510 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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