448  
CDUS43 KGRR 160637  
CLIMKG  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GRAND RAPIDS, MICHIGAN  
237 AM EDT SAT AUG 16 2025  
   
...............................
 
 
   
..THE MUSKEGON CLIMATE SUMMARY FOR AUGUST 15 2025
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1896 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 85 4:07 PM 93 1944 81 4 79  
MINIMUM 67 4:33 AM 40 1929 62 5 63  
AVERAGE 76 71 5 71  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.08 1959 0.10 -0.10 0.34  
MONTH TO DATE 1.24 1.48 -0.24 1.09  
SINCE JUN 1 4.95 7.28 -2.33 8.57  
SINCE JAN 1 16.45 21.06 -4.61 21.03  
 
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 JUN 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 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 48 59 -11 33  
SINCE JUL 1 0 9 -9 6  
 
COOLING  
YESTERDAY 11 6 5 6  
MONTH TO DATE 141 104 37 110  
SINCE JUN 1 592 450 142 509  
SINCE JAN 1 615 486 129 530    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION S (180)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 5.0  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 4:00 AM  
LOWEST 42 3:00 PM  
AVERAGE 66  
   
......................................................
 
 
THE MUSKEGON CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 80 95 1988  
MINIMUM TEMPERATURE (F) 62 36 1979  
 
SUNRISE AND SUNSET  
AUGUST 16 2025........SUNRISE 6:52 AM EDT SUNSET 8:46 PM EDT  
AUGUST 17 2025........SUNRISE 6:53 AM EDT SUNSET 8:44 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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