603
CDUS43 KGRR 160641
CLIMKG
CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MICHIGAN
241 AM EDT TUE SEP 16 2025
...............................
..THE MUSKEGON CLIMATE SUMMARY FOR SEPTEMBER 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 86 3:07 PM 89 2024 74 12 89
MINIMUM 56 4:37 AM 38 1964 54 2 60
AVERAGE 71 64 7 75
PRECIPITATION (IN)
YESTERDAY 0.00 1.88 1970 0.11 -0.11 0.00
MONTH TO DATE 0.41 1.58 -1.17 0.08
SINCE SEP 1 0.41 1.58 -1.17 0.08
SINCE JAN 1 19.40 24.26 -4.86 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 32 28 29
SINCE SEP 1 60 32 28 29
SINCE JUL 1 100 54 46 43
COOLING
YESTERDAY 6 2 4 10
MONTH TO DATE 17 48 -31 47
SINCE SEP 1 17 48 -31 47
SINCE JAN 1 694 621 73 694
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WIND (MPH)
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION E (90)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION E (100)
AVERAGE WIND SPEED 5.5
SKY COVER
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 7:00 AM
LOWEST 36 1:00 PM
AVERAGE 67
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THE MUSKEGON CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 90 2024
MINIMUM TEMPERATURE (F) 53 31 1929
SUNRISE AND SUNSET
SEPTEMBER 16 2025.....SUNRISE 7:26 AM EDT SUNSET 7:53 PM EDT
SEPTEMBER 17 2025.....SUNRISE 7:27 AM EDT SUNSET 7:51 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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