Climatological Report (Monthly) Issued by NWS Grand Rapids, MI
000
CXUS53 KGRR 011325
CLMGRR
CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MICHIGAN
925 AM EDT SUN OCT 01 2023
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...THE GRAND RAPIDS CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2023...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1892 TO 2023
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 98 09/02/1913
09/16/1899
LOW 27 09/28/1991
HIGHEST 91 09/05 87 4 85 09/03
LOWEST 44 09/19 35 9 38 09/23
AVG. MAXIMUM 74.2 73.9 0.3 72.8
AVG. MINIMUM 54.9 53.1 1.8 54.6
MEAN 64.6 63.5 1.1 63.7
DAYS MAX >= 90 3 0.7 2.3 0
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 1.25 3.43 -2.18 1.30
DAILY AVG. 0.04 0.11 -0.07 0.04
DAYS >= .01 5 10.2 -5.2 8
DAYS >= .10 2 6.4 -4.4 4
DAYS >= .50 1 2.2 -1.2 0
DAYS >= 1.00 1 0.8 0.2 0
GREATEST
24 HR. TOTAL 1.04 09/11 TO 09/11
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 77 118 -41 114
SINCE 7/1 91 135 -44 MM
COOLING TOTAL 73 73 0 84
SINCE 1/1 641 725 -84 MM
FREEZE DATES
RECORD
EARLIEST 09/03/1946
LATEST 06/04/1945
EARLIEST MM
LATEST 04/27
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WIND (MPH)
AVERAGE WIND SPEED 6.4
RESULTANT WIND SPEED/DIRECTION 1/140
HIGHEST WIND SPEED/DIRECTION 24/230 DATE 09/06
HIGHEST GUST SPEED/DIRECTION 35/220 DATE 09/06
SKY COVER
POSSIBLE SUNSHINE (PERCENT) 47
AVERAGE SKY COVER 0.57
NUMBER OF DAYS FAIR 5
NUMBER OF DAYS PC 17
NUMBER OF DAYS CLOUDY 8
AVERAGE RH (PERCENT) 77
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 1 MIXED PRECIP 0
HEAVY RAIN 1 RAIN 1
LIGHT RAIN 9 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 19 FOG W/VIS <= 1/4 MILE 2
HAZE 0
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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