Climatological Report (Annual)
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000
CXUS53 KGRR 030135
CLAMKG

CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MICHIGAN
757 PM EST SUN JAN 02 2022

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

...THE MUSKEGON CLIMATE SUMMARY FOR THE YEAR OF 2021...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1896 TO 2022

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             99   07/06/2012
                       08/03/1964
                       07/30/1913
 LOW             -30   02/11/1899
HIGHEST           90   08/24         MM      MM       97  06/09
LOWEST            -9   02/17         MM      MM        9  02/15
AVG. MAXIMUM    59.7               57.9     1.8     59.0
AVG. MINIMUM    42.4               40.9     1.5     42.5
MEAN            51.1               49.4     1.7     50.7
DAYS MAX >= 90     1                3.4    -2.4       14
DAYS MAX <= 32    31               46.1   -15.1       15
DAYS MIN <= 32   120              130.2   -10.2       83
DAYS MIN <= 0      2                2.5    -0.5        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       47.97   2019
 MINIMUM       16.57   1930
TOTALS         30.92              35.08   -4.16    36.30
DAILY AVG.      0.08               0.10   -0.02     0.10
DAYS >= .01      141              142.5    -1.5       20
DAYS >= .10       69               76.1    -7.1        9
DAYS >= .50       13               21.0    -8.0        3
DAYS >= 1.00       7                6.6     0.4        1
GREATEST
 24 HR. TOTAL   2.24

SNOWFALL (INCHES)
RECORDS
 TOTAL         182.2   1962
 24 HR TOTAL    22.0   MM
 SNOW DEPTH       34   12/20/1963
TOTALS          40.6               87.2   -46.6     39.6
SINCE 7/1        9.8               28.8   -19.0       MM
SNOWDEPTH AVG.     1                                   2
DAYS >= TRACE     72               48.1    23.9       16
DAYS >= 1.0       16               26.6   -10.6        5
GREATEST
 SNOW DEPTH       16   02/22                           8  02/15
                                                          02/15
 24 HR TOTAL    11.7   01/26 TO 01/26

DEGREE DAYS
HEATING TOTAL   5774               6297    -523     5948
 SINCE 7/1      1877               2300    -423       MM
COOLING TOTAL    841                650     191      832
 SINCE 1/1       841                650     191       MM

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

WIND (MPH)
AVERAGE WIND SPEED              8.7
RESULTANT WIND SPEED/DIRECTION   2/230
HIGHEST WIND SPEED/DIRECTION    39/220    DATE  12/11
HIGHEST GUST SPEED/DIRECTION    63/190    DATE  12/16

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.62
NUMBER OF DAYS FAIR           80
NUMBER OF DAYS PC            149
NUMBER OF DAYS CLOUDY        136

AVERAGE RH (PERCENT)     68

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             36     MIXED PRECIP               0
HEAVY RAIN               28     RAIN                      40
LIGHT RAIN              140     FREEZING RAIN              0
LT FREEZING RAIN          5     HAIL                       0
HEAVY SNOW                2     SNOW                      14
LIGHT SNOW               68     SLEET                      0
FOG                     158     FOG W/VIS <= 1/4 MILE     16
HAZE                     68

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

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