Climatological Report (Seasonal) Issued by NWS Grand Rapids, MI
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.
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