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Climatological Report (Seasonal)
Issued by NWS
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CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MICHIGAN
121 PM EST WED DEC 02 2020

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

...THE MUSKEGON CLIMATE SUMMARY FOR THE SEASON, FROM
9/1/2020 TO 11/30/2020...

CLIMATE NORMAL PERIOD: 1981 TO 2010
CLIMATE RECORD PERIOD: 1896 TO 2020

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             -14   11/25/1950
HIGHEST           81   09/03         85      -4       85  09/11
LOWEST            24   11/18         18       6       18  11/13
AVG. MAXIMUM    61.4               58.9     2.5     57.5
AVG. MINIMUM    44.3               43.1     1.2     44.0
MEAN            52.9               51.0     1.9     50.8
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     0                1.7    -1.7        4
DAYS MIN <= 32    10               16.7    -6.7       20
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       17.29   1988
 MINIMUM        2.91   1956
TOTALS          8.35              10.36   -2.01    17.03
DAILY AVG.      0.09               0.11   -0.02     0.18
DAYS >= .01        8               36.1   -28.1       49
DAYS >= .10        4               20.8   -16.8       27
DAYS >= .50        1                6.6    -5.6       11
DAYS >= 1.00       0                2.0    -2.0        5
GREATEST
 24 HR. TOTAL   0.96   09/08 TO 09/08

SNOWFALL (INCHES)
RECORDS
 TOTAL          25.7   1995
 24 HR TOTAL    16.0   11/14/1908 TO 11/14/1908
 SNOW DEPTH       16   11/14/1908
TOTALS           1.2                6.2    -5.0     10.9
SINCE 7/1        1.2                6.2    -5.0       MM
SNOWDEPTH AVG.     T                                   0
DAYS >= TRACE      6                4.3     1.7       12
DAYS >= 1.0        1                1.7    -0.7        4
GREATEST
 SNOW DEPTH        0                                   6  11/08
 24 HR TOTAL     1.2   11/24 TO 11/24

DEGREE DAYS
HEATING TOTAL   1129               1337    -208     1366
 SINCE 7/1      1134               1367    -233       MM
COOLING TOTAL     44                 59     -15       95
 SINCE 1/1       833                566     267      640

FREEZE DATES
RECORD
 EARLIEST     09/22/1976
 LATEST       06/22/1992
EARLIEST                        10/27
LATEST                          05/13
................................................................

WIND (MPH)
AVERAGE WIND SPEED              10.2
RESULTANT WIND SPEED/DIRECTION   3/220
HIGHEST WIND SPEED/DIRECTION    35/260    DATE  11/15
HIGHEST GUST SPEED/DIRECTION    70/220    DATE  09/06

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.61
NUMBER OF DAYS FAIR            7
NUMBER OF DAYS PC             11
NUMBER OF DAYS CLOUDY         12

AVERAGE RH (PERCENT)     65

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              8     MIXED PRECIP               0
HEAVY RAIN                4     RAIN                      13
LIGHT RAIN               41     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                7     SLEET                      0
FOG                      26     FOG W/VIS <= 1/4 MILE      3
HAZE                      4

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

$$
National Weather Service Weather Forecast Office
