721  
CDUS43 KGRR 210516  
CLIMKG  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI  
116 AM EDT THU SEP 21 2017  
 
   
...............................
 
 
   
..THE MUSKEGON MI CLIMATE SUMMARY FOR SEPTEMBER 20 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1896 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 90R 408 PM 85 1908 70 20 82  
MINIMUM 61 1253 AM 33 1956 51 10 59  
AVERAGE 76 60 16 71  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.88 1924 0.14 -0.14 T  
MONTH TO DATE 0.79 2.57 -1.78 4.84  
SINCE SEP 1 0.79 2.57 -1.78 4.84  
SINCE JAN 1 21.95 23.15 -1.20 29.99  
 
SNOWFALL (IN)  
YESTERDAY 0.0 MM MM 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE SEP 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 6 -6 0  
MONTH TO DATE 68 67 1 4  
SINCE SEP 1 68 67 1 4  
SINCE JUL 1 81 97 -16 13  
 
COOLING  
YESTERDAY 11 1 10 6  
MONTH TO DATE 35 47 -12 90  
SINCE SEP 1 35 47 -12 90  
SINCE JAN 1 529 554 -25 754    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION SE (150)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 7.3  
 
 
SKY COVER  
AVERAGE SKY COVER 0.5  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
HAZE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 1200 AM  
LOWEST 43 200 PM  
AVERAGE 68  
   
......................................................
 
 
 
THE MUSKEGON MI CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 69 86 1941  
MINIMUM TEMPERATURE (F) 51 31 1962  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 21 2017.....SUNRISE 731 AM EDT SUNSET 744 PM EDT  
SEPTEMBER 22 2017.....SUNRISE 732 AM EDT SUNSET 742 PM EDT  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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