Climatological Report (Annual)
Issued by NWS
Issued by NWS
000 CXUS53 KGRR 060539 CCA CLAMKG CLIMATE REPORT NATIONAL WEATHER SERVICE GRAND RAPIDS, MICHIGAN 125 PM EST MON JAN 04 2021 ................................... ...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 ................................................................ 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. $$