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512
CXUS53 KGRR 011650
CLSGRR

WRKCLSGRR 000
TTAA00 GRR 011636

CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MICHIGAN
1124 AM EST MON MAR 01 2021

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

...THE GRAND RAPIDS CLIMATE SUMMARY FOR THE SEASON, FROM
12/1/2020 TO 2/28/2021...

CLIMATE NORMAL PERIOD: 1981 TO 2010
CLIMATE RECORD PERIOD: 1892 TO 2021

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             69   12/05/2001
                       02/11/1999
 LOW             -24   02/14/1899
                       02/13/1899
HIGHEST           53   12/10         53       0       MM
                       12/23
LOWEST           -12   02/17         -6      -6       MM
AVG. MAXIMUM    33.3               33.1     0.2       MM
AVG. MINIMUM    21.0               20.5     0.5       MM
MEAN            27.1               26.8     0.3       MM
DAYS MAX >= 90     0                0.0     0.0       MM
DAYS MAX <= 32    38               41.2    -3.2       MM
DAYS MIN <= 32    84               77.4     6.6       MM
DAYS MIN <= 0      2                3.8    -1.8       MM

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       13.78   1898
 MINIMUM        2.08   1987
TOTALS          6.02               6.38   -0.36       MM
DAILY AVG.      0.07               0.07   -0.00       MM
DAYS >= .01       44               44.2    -0.2       MM
DAYS >= .10       16               17.8    -1.8       MM
DAYS >= .50        1                2.7    -1.7       MM
DAYS >= 1.00       1                0.6     0.4       MM
GREATEST
 24 HR. TOTAL   1.80   12/11 TO 12/12

SNOWFALL (INCHES)
RECORDS
 TOTAL         105.6   2014
 24 HR TOTAL    16.1   01/26/1978 TO 01/26/1978
 SNOW DEPTH       27   01/27/1978
TOTALS          45.4               57.5   -12.1       MM
SINCE 7/1       45.8               64.8   -19.0       MM
SNOWDEPTH AVG.     3                                  MM
DAYS >= TRACE     54               38.9    15.1       MM
DAYS >= 1.0       18               18.1    -0.1       MM
GREATEST
 SNOW DEPTH       14   02/16                          MM
 24 HR TOTAL     7.9   02/05 TO 02/05

DEGREE DAYS
HEATING TOTAL   3368               3439     -71       MM
 SINCE 7/1      4644               4775    -131       MM
COOLING TOTAL      0                  0       0       MM
 SINCE 1/1         0                  0       0       MM

FREEZE DATES
RECORD
 EARLIEST     09/03/1946
 LATEST       06/04/1945
EARLIEST                        10/18
LATEST                          05/13
................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.2
RESULTANT WIND SPEED/DIRECTION   3/260
HIGHEST WIND SPEED/DIRECTION    39/240    DATE  12/24
HIGHEST GUST SPEED/DIRECTION    54/240    DATE  12/24

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   27
AVERAGE SKY COVER           0.80
NUMBER OF DAYS FAIR            7
NUMBER OF DAYS PC             17
NUMBER OF DAYS CLOUDY         66

AVERAGE RH (PERCENT)     78

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       3
LIGHT RAIN               17     FREEZING RAIN              1
LT FREEZING RAIN          6     HAIL                       1
HEAVY SNOW                3     SNOW                      12
LIGHT SNOW               51     SLEET                      1
FOG                      59     FOG W/VIS <= 1/4 MILE      5
HAZE                     29

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

$$