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Climatological Report (Monthly)
Issued by NWS Grand Rapids, MI
Issued by NWS Grand Rapids, MI
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688 CXUS53 KGRR 011650 CLMGRR CLIMATE REPORT NATIONAL WEATHER SERVICE GRAND RAPIDS, MI 1143 AM EST MON JAN 1 2018 ................................... ...THE GRAND RAPIDS MI (ASOS) CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2017... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1892 TO 2017 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 69 12/05/2001 LOW -18 12/19/1983 HIGHEST 61 12/04 53 8 53 12/26 LOWEST -12 12/27 1 -13 4 12/15 AVG. MAXIMUM 30.9 34.8 -3.9 32.1 AVG. MINIMUM 17.8 23.5 -5.7 23.0 MEAN 24.4 29.2 -4.8 27.5 DAYS MAX >= 90 0 0.0 0.0 0 DAYS MAX <= 32 19 11.7 7.3 14 DAYS MIN <= 32 29 25.0 4.0 26 DAYS MIN <= 0 6 0.7 5.3 0 PRECIPITATION (INCHES) RECORD MAXIMUM 6.95 1893 MINIMUM 0.31 1913 TOTALS 1.96 2.50 -0.54 2.96 DAILY AVG. 0.06 0.08 -0.02 0.10 DAYS >= .01 19 16.0 3.0 20 DAYS >= .10 7 6.9 0.1 11 DAYS >= .50 0 1.1 -1.1 1 DAYS >= 1.00 0 0.3 -0.3 0 GREATEST 24 HR. TOTAL 0.33 12/13 TO 12/13 SNOWFALL (INCHES) RECORDS TOTAL 59.2 2000 24 HR TOTAL 15.1 12/10/1970 TO 12/11/1970 SNOW DEPTH 22 12/27/1951 12/26/1951 12/25/1951 TOTALS 32.9 21.9 11.0 37.0 SINCE 7/1 33.5 29.2 4.3 37.8 SNOWDEPTH AVG. 3 3 0 4 DAYS >= TRACE 23 13.3 9.7 23 DAYS >= 1.0 11 6.6 4.4 11 GREATEST SNOW DEPTH 10 12/16 9 12/19 12/17 12/12 24 HR TOTAL 7.0 12/25 TO 12/25 DEGREE_DAYS HEATING TOTAL 1252 1111 141 1156 SINCE 7/1 2443 2449 -6 2104 COOLING TOTAL 0 0 0 0 SINCE 1/1 719 699 20 936 FREEZE DATES RECORD EARLIEST 09/03/1946 LATEST 06/04/1945 EARLIEST 10/13 LATEST 05/02 ................................................................. WIND (MPH) AVERAGE WIND SPEED 9.9 RESULTANT WIND SPEED/DIRECTION 4/248 HIGHEST WIND SPEED/DIRECTION 41/240 DATE 12/05 HIGHEST GUST SPEED/DIRECTION 52/240 DATE 12/05 SKY COVER POSSIBLE SUNSHINE (PERCENT) 22 AVERAGE SKY COVER 0.80 NUMBER OF DAYS FAIR 0 NUMBER OF DAYS PC 11 NUMBER OF DAYS CLOUDY 20 AVERAGE RH (PERCENT) 77 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 2 MIXED PRECIP 0 HEAVY RAIN 0 RAIN 0 LIGHT RAIN 3 FREEZING RAIN 0 LT FREEZING RAIN 2 HAIL 0 HEAVY SNOW 3 SNOW 6 LIGHT SNOW 23 SLEET 0 FOG 25 FOG W/VIS <= 1/4 MILE 4 HAZE 14 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$
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