026
CXUS53 KGRR 011525
CLMMKG

CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MICHIGAN
1125 AM EDT THU OCT 01 2026

...................................

...THE MUSKEGON CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1896 TO 2026

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             95   09/06/1954
                       09/01/1953
 LOW              27   09/28/1991
                       09/27/1989
HIGHEST           85   09/02         85       0       87  09/19
LOWEST            41   09/26         35       6       38  09/08
                       09/27
AVG. MAXIMUM    73.8               73.4     0.4     76.4
AVG. MINIMUM    55.2               53.5     1.7     52.9
MEAN            64.5               63.5     1.0     64.7
DAYS MAX >= 90     0                0.2    -0.2        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.2    -0.2        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       13.55   1986
 MINIMUM        0.17   1979
TOTALS          3.49               3.26    0.23     0.85
DAILY AVG.      0.12               0.11    0.01     0.03
DAYS >= .01       12                9.4     2.6        7
DAYS >= .10        5                5.8    -0.8        4
DAYS >= .50        3                2.3     0.7        0
DAYS >= 1.00       1                0.7     0.3        0
GREATEST
 24 HR. TOTAL   1.21   09/03 TO 09/04

SNOWFALL (INCHES)
RECORDS
 TOTAL             T   1994
 SNOW DEPTH        0   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     84                116     -32       62
 SINCE 7/1        94                139     -45       MM
COOLING TOTAL     77                 70       7       59
 SINCE 1/1       652                643       9       MM

FREEZE DATES
RECORD
 EARLIEST     09/22/1976
 LATEST       06/22/1992
EARLIEST                        MM
LATEST                          05/12
................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.5
RESULTANT WIND SPEED/DIRECTION   2/100
HIGHEST WIND SPEED/DIRECTION    23/350    DATE  09/15
HIGHEST GUST SPEED/DIRECTION    31/190    DATE  09/30

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.52
NUMBER OF DAYS FAIR            8
NUMBER OF DAYS PC             17
NUMBER OF DAYS CLOUDY          5

AVERAGE RH (PERCENT)     76

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       6
LIGHT RAIN               15     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      16     FOG W/VIS <= 1/4 MILE      1
HAZE                      0

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

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