Climatological Report (Monthly)
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000
CXUS53 KGRR 010921
CLMMKG

CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MICHIGAN
421 AM EST MON JAN 01 2024

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

...THE MUSKEGON CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1896 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             66   12/03/2012
 LOW             -15   12/31/1976
HIGHEST           59   12/25         51       8       57  12/29
LOWEST            26   12/30          5      21        7  12/23
AVG. MAXIMUM    45.8               37.4     8.4     37.4
AVG. MINIMUM    36.2               26.3     9.9     28.1
MEAN            41.0               31.9     9.1     32.7
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     0                9.9    -9.9        9
DAYS MIN <= 32     8               24.7   -16.7       21
DAYS MIN <= 0      0                0.2    -0.2        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        6.99   2008
 MINIMUM        0.47   1930
TOTALS          1.81               2.42   -0.61     1.45
DAILY AVG.      0.06               0.08   -0.02     0.05
DAYS >= .01       17               14.9     2.1       14
DAYS >= .10        7                6.7     0.3        5
DAYS >= .50        0                1.0    -1.0        1
DAYS >= 1.00       0                0.3    -0.3        0
GREATEST
 24 HR. TOTAL   0.32   12/03 TO 12/03

SNOWFALL (INCHES)
RECORDS
 TOTAL          82.6   1963
 SNOW DEPTH       34   12/20/1963
TOTALS           4.2               22.3   -18.1     17.8
SINCE 7/1       17.4               28.8   -11.4     24.3
SNOWDEPTH AVG.     0                                   3
DAYS >= TRACE      8               10.9    -2.9       14
DAYS >= 1.0        2                6.9    -4.9        6
GREATEST
 SNOW DEPTH        2   12/19                          13  12/26
                                                          12/27

DEGREE DAYS
HEATING TOTAL    736               1028    -292      990
 SINCE 7/1      1839               2300    -461     2118
COOLING TOTAL      0                  0       0        0
 SINCE 1/1       795                650     145      878

FREEZE DATES
RECORD
 EARLIEST     09/22/1976
 LATEST       06/22/1992
EARLIEST                        10/31
LATEST                          04/27
................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.0
RESULTANT WIND SPEED/DIRECTION   1/220
HIGHEST WIND SPEED/DIRECTION    35/210    DATE  12/09
HIGHEST GUST SPEED/DIRECTION    53/190    DATE  12/09

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.80
NUMBER OF DAYS FAIR            2
NUMBER OF DAYS PC              9
NUMBER OF DAYS CLOUDY         20

AVERAGE RH (PERCENT)     73

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       5
LIGHT RAIN               17     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                3     SNOW                       4
LIGHT SNOW                8     SLEET                      0
FOG                      20     FOG W/VIS <= 1/4 MILE      7
HAZE                     21

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

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