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Climatological Report (Annual)
Issued by NWS Grand Rapids, MI

355
CXUS53 KGRR 041836
CLAGRR

WRKCLAGRR 000
TTAA00 GRR 041829

CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MICHIGAN
125 PM EST MON JAN 04 2021

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

...THE GRAND RAPIDS CLIMATE SUMMARY FOR THE YEAR OF 2020...

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            108   07/13/1936
 LOW             -24   02/14/1899
                       02/13/1899
HIGHEST           94   07/03         93       1       92  07/20
                       07/07
LOWEST             4   02/14         -6      10      -10  01/31
                       02/15
AVG. MAXIMUM    59.1               58.0     1.1     56.8
AVG. MINIMUM    41.2               40.3     0.9     40.1
MEAN            50.1               49.1     1.0     48.5
DAYS MAX >= 90    17                8.4     8.6        7
DAYS MAX <= 32    15               47.3   -32.3       50
DAYS MIN <= 32    93              126.5   -33.5      135
DAYS MIN <= 0      0                3.9    -3.9        6

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       51.37   2019
 MINIMUM       20.99   1930
TOTALS         37.44              38.27   -0.83    51.37
DAILY AVG.      0.10               0.10   -0.00     0.14
DAYS >= .01       33              145.0  -112.0      177
DAYS >= .10       19               77.5   -58.5      103
DAYS >= .50        4               22.9   -18.9       38
DAYS >= 1.00       1                7.7    -6.7       10
GREATEST
 24 HR. TOTAL   2.16

SNOWFALL (INCHES)
RECORDS
 TOTAL         143.7   2008
 24 HR TOTAL    11.3   02/03/2007 TO 02/03/2007
 SNOW DEPTH       24   02/18/2014
TOTALS          37.7               74.9   -37.2     84.8
SINCE 7/1        5.3               29.2   -23.9       MM
SNOWDEPTH AVG.     1                                   1
DAYS >= TRACE     21               52.1   -31.1       89
DAYS >= 1.0        3               23.0   -20.0       25
GREATEST
 SNOW DEPTH        6   01/21                          14  01/30
                       01/19
                       01/20
 24 HR TOTAL     0.2

DEGREE DAYS
HEATING TOTAL   6146               6485    -339     6650
 SINCE 7/1      2277               2448    -171       MM
COOLING TOTAL    832                698     134      742
 SINCE 1/1       832                699     133      742

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

WIND (MPH)
AVERAGE WIND SPEED              9.3
RESULTANT WIND SPEED/DIRECTION   3/250
HIGHEST WIND SPEED/DIRECTION    44/230    DATE  11/15
HIGHEST GUST SPEED/DIRECTION    63/240    DATE  11/15

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   51
AVERAGE SKY COVER           0.63
NUMBER OF DAYS FAIR           MM
NUMBER OF DAYS PC             MM
NUMBER OF DAYS CLOUDY         MM

AVERAGE RH (PERCENT)     71

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             30     MIXED PRECIP               0
HEAVY RAIN               31     RAIN                      47
LIGHT RAIN              137     FREEZING RAIN              1
LT FREEZING RAIN          5     HAIL                       3
HEAVY SNOW                4     SNOW                      10
LIGHT SNOW               72     SLEET                      3
FOG                     181     FOG W/VIS <= 1/4 MILE     14
HAZE                     36

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

$$