Climatological Report (Monthly)
Issued by NWS Grand Rapids, MI
Issued by NWS Grand Rapids, MI
028
CXUS53 KGRR 011525
CLMGRR
CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MICHIGAN
1125 AM EDT THU OCT 01 2026
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...THE GRAND RAPIDS CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1892 TO 2026
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 92 09/02 87 5 87 09/18
LOWEST 41 09/26 35 6 39 09/08
AVG. MAXIMUM 73.4 73.9 -0.5 76.7
AVG. MINIMUM 54.9 53.1 1.8 53.4
MEAN 64.2 63.5 0.7 65.1
DAYS MAX >= 90 1 0.7 0.3 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 3.00 3.43 -0.43 2.44
DAILY AVG. 0.10 0.11 -0.01 0.08
DAYS >= .01 11 10.2 0.8 7
DAYS >= .10 6 6.4 -0.4 5
DAYS >= .50 2 2.2 -0.2 3
DAYS >= 1.00 0 0.8 -0.8 0
GREATEST
24 HR. TOTAL 1.04 09/18 TO 09/19
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 96 118 -22 57
SINCE 7/1 98 135 -37 MM
COOLING TOTAL 79 73 6 68
SINCE 1/1 759 725 34 MM
FREEZE DATES
RECORD
EARLIEST 09/03/1946
LATEST 06/04/1945
EARLIEST MM
LATEST 05/12
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WIND (MPH)
AVERAGE WIND SPEED 7.0
RESULTANT WIND SPEED/DIRECTION 2/080
HIGHEST WIND SPEED/DIRECTION 23/290 DATE 09/03
23/080 09/22
23/100 09/23
HIGHEST GUST SPEED/DIRECTION 32/300 DATE 09/03
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.55
NUMBER OF DAYS FAIR 7
NUMBER OF DAYS PC 15
NUMBER OF DAYS CLOUDY 8
AVERAGE RH (PERCENT) 78
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 5 MIXED PRECIP 0
HEAVY RAIN 4 RAIN 5
LIGHT RAIN 13 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 21 FOG W/VIS <= 1/4 MILE 2
HAZE 3
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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