Climatological Report (Seasonal) Issued by NWS Grand Rapids, MI
042
CXUS53 KGRR 031325
CLSGRR
WRKCLSGRR 000
TTAA00 GRR 021842
CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MICHIGAN
121 PM EST WED DEC 02 2020
...................................
...THE GRAND RAPIDS CLIMATE SUMMARY FOR THE SEASON, FROM
9/1/2020 TO 11/30/2020...
CLIMATE NORMAL PERIOD: 1981 TO 2010
CLIMATE RECORD PERIOD: 1892 TO 2020
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 98 09/02/1913
09/16/1899
LOW -10 11/25/1950
HIGHEST 85 09/03 87 -2 88 09/11
LOWEST 22 11/14 16 6 15 11/13
AVG. MAXIMUM 60.7 60.2 0.5 57.8
AVG. MINIMUM 41.7 42.5 -0.8 42.9
MEAN 51.2 51.3 -0.1 50.3
DAYS MAX >= 90 0 0.3 -0.3 0
DAYS MAX <= 32 0 1.8 -1.8 4
DAYS MIN <= 32 19 18.0 1.0 23
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 18.11 1911
MINIMUM 2.59 1956
TOTALS 8.01 11.05 -3.04 17.07
DAILY AVG. 0.09 0.12 -0.03 0.19
DAYS >= .01 23 35.7 -12.7 46
DAYS >= .10 14 21.0 -7.0 25
DAYS >= .50 3 7.1 -4.1 13
DAYS >= 1.00 0 2.3 -2.3 5
GREATEST
24 HR. TOTAL 1.12 09/08 TO 09/08
SNOWFALL (INCHES)
RECORDS
TOTAL 31.0 2014
24 HR TOTAL 10.4 11/03/1991 TO 11/03/1991
SNOW DEPTH 11 11/21/2000
11/07/1951
TOTALS 0.4 7.3 -6.9 6.8
SINCE 7/1 0.4 7.3 -6.9 MM
SNOWDEPTH AVG. 0 0
DAYS >= TRACE 7 4.7 2.3 16
DAYS >= 1.0 0 2.2 -2.2 1
GREATEST
SNOW DEPTH 0 4 11/12
24 HR TOTAL 0.2 11/24 TO 11/24
DEGREE DAYS
HEATING TOTAL 1274 1317 -43 1414
SINCE 7/1 1276 1337 -61 MM
COOLING TOTAL 39 74 -35 100
SINCE 1/1 832 699 133 742
FREEZE DATES
RECORD
EARLIEST 09/03/1946
LATEST 06/04/1945
EARLIEST 10/05
LATEST 05/13
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WIND (MPH)
AVERAGE WIND SPEED 9.7
RESULTANT WIND SPEED/DIRECTION 4/230
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 0.58
NUMBER OF DAYS FAIR 6
NUMBER OF DAYS PC 12
NUMBER OF DAYS CLOUDY 12
AVERAGE RH (PERCENT) 73
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 9 MIXED PRECIP 0
HEAVY RAIN 8 RAIN 14
LIGHT RAIN 40 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 1 SNOW 0
LIGHT SNOW 6 SLEET 0
FOG 40 FOG W/VIS <= 1/4 MILE 2
HAZE 1
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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