237
CDUS43 KGRR 172127
CLIMKG
CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MICHIGAN
527 PM EDT WED SEP 17 2025
...............................
..THE MUSKEGON CLIMATE SUMMARY FOR SEPTEMBER 17 2025
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 82 1:06 PM 88 1955 73 9 86
MINIMUM 53 6:47 AM 36 1959 53 0 55
1990
AVERAGE 68 63 5 71
PRECIPITATION (IN)
TODAY 0.00 1.60 1987 0.11 -0.11 0.00
MONTH TO DATE 0.41 1.80 -1.39 0.08
SINCE SEP 1 0.41 1.80 -1.39 0.08
SINCE JAN 1 19.40 24.48 -5.08 23.57
SNOWFALL (IN)
TODAY 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
TODAY 0 4 -4 0
MONTH TO DATE 60 40 20 29
SINCE SEP 1 60 40 20 29
SINCE JUL 1 100 62 38 43
COOLING
TODAY 3 2 1 6
MONTH TO DATE 23 52 -29 62
SINCE SEP 1 23 52 -29 62
SINCE JAN 1 700 625 75 709
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION W (280)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 2.8
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 6:00 AM
LOWEST 41 1:00 PM
AVERAGE 71
......................................................
THE MUSKEGON CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 86 1906
MINIMUM TEMPERATURE (F) 53 34 1959
1973
1995
SUNRISE AND SUNSET
SEPTEMBER 17 2025.....SUNRISE 7:27 AM EDT SUNSET 7:51 PM EDT
SEPTEMBER 18 2025.....SUNRISE 7:28 AM EDT SUNSET 7:49 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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