301
CDUS43 KGRR 170638
CLIMKG
CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MICHIGAN
238 AM EDT WED SEP 17 2025
...............................
..THE MUSKEGON CLIMATE SUMMARY FOR SEPTEMBER 16 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 80 2:02 PM 90 2024 74 6 90
MINIMUM 56 6:52 AM 31 1929 53 3 57
AVERAGE 68 64 4 74
PRECIPITATION (IN)
YESTERDAY 0.00 1.40 1913 0.11 -0.11 0.00
MONTH TO DATE 0.41 1.69 -1.28 0.08
SINCE SEP 1 0.41 1.69 -1.28 0.08
SINCE JAN 1 19.40 24.37 -4.97 23.57
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 4 -4 0
MONTH TO DATE 60 36 24 29
SINCE SEP 1 60 36 24 29
SINCE JUL 1 100 58 42 43
COOLING
YESTERDAY 3 2 1 9
MONTH TO DATE 20 50 -30 56
SINCE SEP 1 20 50 -30 56
SINCE JAN 1 697 623 74 703
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION NW (330)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 4.7
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 7:00 AM
LOWEST 39 12:00 PM
AVERAGE 68
......................................................
THE MUSKEGON CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 88 1955
MINIMUM TEMPERATURE (F) 53 36 1959
1990
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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