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CXUS53 KGRR 020840
CLMGRR

CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MICHIGAN
440 AM EDT THU OCT 02 2025

...................................

...THE GRAND RAPIDS CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1892 TO 2025

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           87   09/18         87       0       88  09/15
                                                          09/16
                                                          09/21
LOWEST            39   09/08         35       4       41  09/08
AVG. MAXIMUM    76.7               73.9     2.8     79.2
AVG. MINIMUM    53.4               53.1     0.3     54.6
MEAN            65.1               63.5     1.6     66.9
DAYS MAX >= 90     0                0.7    -0.7        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          2.44               3.43   -0.99     1.32
DAILY AVG.      0.08               0.11   -0.03     0.04
DAYS >= .01        7               10.2    -3.2        5
DAYS >= .10        5                6.4    -1.4        3
DAYS >= .50        3                2.2     0.8        1
DAYS >= 1.00       0                0.8    -0.8        0
GREATEST
 24 HR. TOTAL   0.69   09/20 TO 09/21

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     57                118     -61       38
 SINCE 7/1        88                135     -47       MM
COOLING TOTAL     68                 73      -5      105
 SINCE 1/1       821                725      96       MM

FREEZE DATES
RECORD
 EARLIEST     09/03/1946
 LATEST       06/04/1945
EARLIEST                        MM
LATEST                          04/17
................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.8
RESULTANT WIND SPEED/DIRECTION   1/160
HIGHEST WIND SPEED/DIRECTION    30/240    DATE  09/05
HIGHEST GUST SPEED/DIRECTION    40/250    DATE  09/05

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           16
NUMBER OF DAYS PC             11
NUMBER OF DAYS CLOUDY          3

AVERAGE RH (PERCENT)     71

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              4     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       5
LIGHT RAIN               10     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      16     FOG W/VIS <= 1/4 MILE      1
HAZE                      1

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$