Climatological Report (Annual) Issued by NWS
800
CXUS53 KGRR 060539 CCA
CLAMKG
CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MICHIGAN
125 PM EST MON JAN 04 2021
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...THE MUSKEGON CLIMATE SUMMARY FOR THE YEAR OF 2020...
CLIMATE NORMAL PERIOD: 1981 TO 2010
CLIMATE RECORD PERIOD: 1896 TO 2021
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 99 07/06/2012
08/03/1964
07/30/1913
LOW -30 02/11/1899
HIGHEST 97 06/09 MM MM 90 07/06
LOWEST 9 02/15 MM MM -12 01/21
AVG. MAXIMUM 59.0 56.5 2.5 56.3
AVG. MINIMUM 42.5 40.6 1.9 40.2
MEAN 50.7 48.6 2.1 48.2
DAYS MAX >= 90 14 1.8 12.2 1
DAYS MAX <= 32 15 46.1 -31.1 47
DAYS MIN <= 32 83 122.9 -39.9 127
DAYS MIN <= 0 0 1.9 -1.9 3
PRECIPITATION (INCHES)
RECORD
MAXIMUM 47.97 2019
MINIMUM MM MM
TOTALS 36.30 33.49 2.81 47.97
DAILY AVG. 0.10 0.09 0.01 0.13
DAYS >= .01 20 141.2 -121.2 164
DAYS >= .10 9 74.1 -65.1 88
DAYS >= .50 3 19.9 -16.9 30
DAYS >= 1.00 1 5.5 -4.5 11
GREATEST
24 HR. TOTAL 3.78 04/28 TO 04/29
SNOWFALL (INCHES)
RECORDS
TOTAL 182.2 1962
24 HR TOTAL MM
SNOW DEPTH MM MM
TOTALS 39.6 93.7 -54.1 84.8
SINCE 7/1 11.0 35.1 -24.1 MM
SNOWDEPTH AVG. 2 1
DAYS >= TRACE 16 51.5 -35.5 80
DAYS >= 1.0 5 27.9 -22.9 27
GREATEST
SNOW DEPTH 8 02/15 15 02/01
02/15
01/31
01/30
24 HR TOTAL 1.2
DEGREE DAYS
HEATING TOTAL 5948 6559 -611 6641
SINCE 7/1 2109 2447 -338 MM
COOLING TOTAL 832 565 267 640
SINCE 1/1 832 566 266 640
FREEZE DATES
RECORD
EARLIEST 09/22/1976
LATEST 06/22/1992
EARLIEST 10/18
LATEST 05/13
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WIND (MPH)
AVERAGE WIND SPEED 9.3
RESULTANT WIND SPEED/DIRECTION 2/240
HIGHEST WIND SPEED/DIRECTION 39/200 DATE 09/06
HIGHEST GUST SPEED/DIRECTION 70/220 DATE 09/06
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.63
NUMBER OF DAYS FAIR MM
NUMBER OF DAYS PC MM
NUMBER OF DAYS CLOUDY MM
AVERAGE RH (PERCENT) 66
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 22 MIXED PRECIP 0
HEAVY RAIN 21 RAIN 38
LIGHT RAIN 125 FREEZING RAIN 0
LT FREEZING RAIN 2 HAIL 0
HEAVY SNOW 2 SNOW 13
LIGHT SNOW 63 SLEET 0
FOG 135 FOG W/VIS <= 1/4 MILE 11
HAZE 39
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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