Climatological Report (Monthly)
Issued by NWS Grand Rapids, MI
Issued by NWS Grand Rapids, MI
514 CXUS53 KGRR 011012 CLMGRR CLIMATE REPORT NATIONAL WEATHER SERVICE GRAND RAPIDS, MICHIGAN 612 AM EDT TUE OCT 01 2024 ................................... ...THE GRAND RAPIDS CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2024... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1892 TO 2024 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 27 09/28/1991 HIGHEST 88 09/15 87 1 91 09/05 09/16 09/21 LOWEST 41 09/08 35 6 44 09/19 AVG. MAXIMUM 79.2 73.9 5.3 74.2 AVG. MINIMUM 54.6 53.1 1.5 54.9 MEAN 66.9 63.5 3.4 64.6 DAYS MAX >= 90 0 0.7 -0.7 3 DAYS MAX <= 32 0 0.0 0.0 0 DAYS MIN <= 32 0 0.2 -0.2 0 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 11.85 1986 MINIMUM 0.00 1979 TOTALS 1.32 3.43 -2.11 1.25 DAILY AVG. 0.04 0.11 -0.07 0.04 DAYS >= .01 5 10.2 -5.2 5 DAYS >= .10 3 6.4 -3.4 2 DAYS >= .50 1 2.2 -1.2 1 DAYS >= 1.00 0 0.8 -0.8 1 GREATEST 24 HR. TOTAL 0.54 09/22 TO 09/22 SNOWFALL (INCHES) RECORDS TOTAL T 2003 SNOW DEPTH T MM TOTALS 0.0 0.0 0.0 0.0 SINCE 7/1 0.0 0.0 0.0 MM SNOWDEPTH AVG. 0 0 DAYS >= TRACE 0 0.0 0.0 0 DAYS >= 1.0 0 0.0 0.0 0 GREATEST SNOW DEPTH 0 0 MM DEGREE DAYS HEATING TOTAL 38 118 -80 77 SINCE 7/1 53 135 -82 MM COOLING TOTAL 105 73 32 73 SINCE 1/1 759 725 34 MM FREEZE DATES RECORD EARLIEST 09/03/1946 LATEST 06/04/1945 EARLIEST MM LATEST 04/25 ................................................................ WIND (MPH) AVERAGE WIND SPEED 6.9 RESULTANT WIND SPEED/DIRECTION 2/070 HIGHEST WIND SPEED/DIRECTION 24/060 DATE 09/27 HIGHEST GUST SPEED/DIRECTION 36/050 DATE 09/27 SKY COVER POSSIBLE SUNSHINE (PERCENT) 69 AVERAGE SKY COVER 0.41 NUMBER OF DAYS FAIR 16 NUMBER OF DAYS PC 10 NUMBER OF DAYS CLOUDY 4 AVERAGE RH (PERCENT) 67 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 1 MIXED PRECIP 0 HEAVY RAIN 1 RAIN 4 LIGHT RAIN 7 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 8 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. $$