Climatological Report (Seasonal)
Issued by NWS

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CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MICHIGAN
153 PM EDT WED SEP 01 2021

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

...THE HOLLAND CLIMATE SUMMARY FOR THE SEASON, FROM
6/1/2021 TO 8/31/2021...

CLIMATE NORMAL PERIOD: 1991 TO 2020
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            102   07/06/2012
                       07/21/1934
                       07/30/1913
 LOW              29   06/11/1972
HIGHEST           92   08/24         MM      MM       MM
                       08/28
LOWEST            44   06/22         MM      MM       MM
AVG. MAXIMUM    81.8               80.0     1.8       MM
AVG. MINIMUM    62.1               59.7     2.4       MM
MEAN            71.9               69.9     2.0       MM
DAYS MAX >= 90     3                7.0    -4.0       MM
DAYS MAX <= 32     0                0.0     0.0       MM
DAYS MIN <= 32     0                0.0     0.0       MM
DAYS MIN <= 0      0                0.0     0.0       MM

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       21.23   1972
 MINIMUM        3.02   1930
TOTALS          9.92               9.31    0.61       MM
DAILY AVG.      0.11               0.10    0.01       MM
DAYS >= .01       31               31.8    -0.8       MM
DAYS >= .10       15               16.6    -1.6       MM
DAYS >= .50        6                6.0     0.0       MM
DAYS >= 1.00       4                2.0     2.0       MM
GREATEST
 24 HR. TOTAL   2.60   06/24 TO 06/25
 STORM TOTAL    1.01                                  MM
 (MM/DD(HH))


DEGREE DAYS
HEATING TOTAL     23                 71     -48       MM
 SINCE 7/1         2                 17     -15       MM
COOLING TOTAL    685                520     165       MM
 SINCE 1/1       749                561     188       MM

FREEZE DATES
EARLIEST                        MM
LATEST                          05/13
................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.3
RESULTANT WIND SPEED/DIRECTION   3/230
HIGHEST WIND SPEED/DIRECTION    37/250    DATE  07/29
HIGHEST GUST SPEED/DIRECTION    48/240    DATE  08/11

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.27
NUMBER OF DAYS FAIR           61
NUMBER OF DAYS PC             25
NUMBER OF DAYS CLOUDY          6

AVERAGE RH (PERCENT)     68

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             20     MIXED PRECIP               0
HEAVY RAIN               13     RAIN                      12
LIGHT RAIN               34     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      46     FOG W/VIS <= 1/4 MILE      9
HAZE                     27

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

$$


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