419  
CDUS43 KGRR 130525  
CLIMKG  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI  
1223 AM EST FRI DEC 13 2019  
 
   
...............................
 
 
   
..THE MUSKEGON MI CLIMATE SUMMARY FOR DECEMBER 12 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 42 1159 PM 57 1899 36 6 39  
MINIMUM 13 1248 AM -5 1958 26 -13 30  
AVERAGE 28 31 -3 35  
 
PRECIPITATION (IN)  
YESTERDAY T 1.16 1984 0.09 -0.09 0.03  
MONTH TO DATE 1.29 1.12 0.17 0.93  
SINCE DEC 1 1.29 1.12 0.17 0.93  
SINCE JAN 1 45.45 32.06 13.39 40.97  
 
SNOWFALL (IN)  
YESTERDAY 0.0 7.4 1956 1.0 -1.0 T  
MONTH TO DATE 4.4 9.7 -5.3 1.8  
SINCE DEC 1 4.4 9.7 -5.3 1.8  
SINCE JUL 1 15.3 15.9 -0.6 14.3  
SNOW DEPTH 1  
 
DEGREE DAYS  
HEATING  
YESTERDAY 37 34 3 30  
MONTH TO DATE 388 389 -1 396  
SINCE DEC 1 388 389 -1 396  
SINCE JUL 1 1758 1756 2 1812  
 
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 12 RESULTANT WIND DIRECTION S (160)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 14.1  
 
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 80 1200 AM  
LOWEST 54 500 PM  
AVERAGE 67  
   
......................................................
 
 
 
THE MUSKEGON MI CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 36 63 2015  
MINIMUM TEMPERATURE (F) 26 1 1958  
1956  
 
 
SUNRISE AND SUNSET  
DECEMBER 13 2019......SUNRISE 808 AM EST SUNSET 510 PM EST  
DECEMBER 14 2019......SUNRISE 809 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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