Climatological Report (Seasonal)
Issued by NWS

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CXUS53 KGRR 011654
CLSBIV

WRKCLSBIV 000
TTAA00 GRR 011636

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

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

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

CLIMATE NORMAL PERIOD: 1981 TO 2010
CLIMATE RECORD PERIOD: 1905 TO 2021

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             70   12/05/2001
                       02/11/1999
 LOW             -24   02/01/1918
HIGHEST           54   12/10         MM      MM       MM
                       12/23
LOWEST           -10   02/17         MM      MM       MM
AVG. MAXIMUM    34.1               34.5    -0.4       MM
AVG. MINIMUM    22.7               22.7    -0.0       MM
MEAN            28.4               28.6    -0.2       MM
DAYS MAX >= 90     0                0.0     0.0       MM
DAYS MAX <= 32    33               36.0    -3.0       MM
DAYS MIN <= 32    78               74.4     3.6       MM
DAYS MIN <= 0      2                1.4     0.6       MM

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       12.05   1950
 MINIMUM        2.55   2003
TOTALS          3.75               6.19   -2.44       MM
DAILY AVG.      0.04               0.07   -0.03       MM
DAYS >= .01       27                 MM      MM       MM
DAYS >= .10       11                 MM      MM       MM
DAYS >= .50        1                 MM      MM       MM
DAYS >= 1.00       1                 MM      MM       MM
GREATEST
 24 HR. TOTAL   1.68   12/11 TO 12/12
 STORM TOTAL      MM                                  MM
 (MM/DD(HH))


DEGREE DAYS
HEATING TOTAL   3253               3277     -24       MM
 SINCE 7/1      4455               4501     -46       MM
COOLING TOTAL      0                  0       0       MM
 SINCE 1/1         0                  0       0       MM

FREEZE DATES
EARLIEST                        10/26
LATEST                          05/09
................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.5
RESULTANT WIND SPEED/DIRECTION   2/250
HIGHEST WIND SPEED/DIRECTION    36/230    DATE  12/24
HIGHEST GUST SPEED/DIRECTION    49/230    DATE  12/24

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.72
NUMBER OF DAYS FAIR           13
NUMBER OF DAYS PC             22
NUMBER OF DAYS CLOUDY         55

AVERAGE RH (PERCENT)     71

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       3
LIGHT RAIN               15     FREEZING RAIN              2
LT FREEZING RAIN          2     HAIL                       0
HEAVY SNOW                2     SNOW                      16
LIGHT SNOW               42     SLEET                      0
FOG                      44     FOG W/VIS <= 1/4 MILE      5
HAZE                     40

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

$$


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