927
CXUS53 KGRR 012147
CLMMKG
CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MICHIGAN
547 PM EDT MON SEP 01 2025
...............................
..THE MUSKEGON CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1896 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
............................................................
TEMPERATURE (F)
RECORD
HIGH 99 08/03/1964
LOW 36 08/16/1979
HIGHEST 91 08/08 88 3 91 08/02
08/09
LOWEST 43 08/30 46 -3 50 08/21
08/22
AVG. MAXIMUM 80.0 80.2 -0.2 81.0
AVG. MINIMUM 60.0 61.3 -1.3 62.7
MEAN 70.0 70.8 -0.8 71.9
DAYS MAX >= 90 2 0.4 1.6 1
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 0.0 0.0 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 4.51 2021
MINIMUM 0.18 2020
TOTALS 3.78 3.10 0.68 3.55
DAILY AVG. 0.12 0.10 0.02 0.11
DAYS >= .01 10 9.1 0.9 8
DAYS >= .10 6 5.7 0.3 6
DAYS >= .50 2 2.1 -0.1 2
DAYS >= 1.00 2 0.7 1.3 1
GREATEST
24 HR. TOTAL 2.25 08/18 TO 08/19
SNOWFALL (INCHES)
RECORDS
TOTAL MM MM
SNOW DEPTH MM MM
TOTALS 0.0 0.0 0.0 0.0
SINCE 7/1 0.0 0.0 0.0 MM
SNOWDEPTH AVG. 0 0
DAYS >= TRACE 0 0.0 0.0 0
DAYS >= 1.0 0 0.0 0.0 0
GREATEST
SNOW DEPTH 0 0 MM
DEGREE DAYS
HEATING TOTAL 40 13 27 8
SINCE 7/1 40 16 24 MM
COOLING TOTAL 203 191 12 227
SINCE 1/1 677 573 104 MM
FREEZE DATES
RECORD
EARLIEST 09/22/1976
LATEST 06/22/1992
EARLIEST MM
LATEST 05/09
............................................................
WIND (MPH)
AVERAGE WIND SPEED 7.1
RESULTANT WIND SPEED/DIRECTION 1/260
HIGHEST WIND SPEED/DIRECTION 25/190 DATE 08/09
HIGHEST GUST SPEED/DIRECTION 35/200 DATE 08/09
35/270 08/16
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.44
NUMBER OF DAYS FAIR 10
NUMBER OF DAYS PC 19
NUMBER OF DAYS CLOUDY 2
AVERAGE RH (PERCENT) 71
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 5 MIXED PRECIP 0
HEAVY RAIN 3 RAIN 3
LIGHT RAIN 13 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 17 FOG W/VIS <= 1/4 MILE 1
HAZE 7
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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