315
CXUS53 KGRR 020840
CLMBIV

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

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

...THE HOLLAND CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1905 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             99   09/06/1954
 LOW              27   09/28/1991
HIGHEST           87   09/19         MM      MM       90  09/15
LOWEST            38   09/08         MM      MM       42  09/08
AVG. MAXIMUM    76.4               73.5     2.9     78.4
AVG. MINIMUM    51.9               52.4    -0.5     54.1
MEAN            64.2               62.9     1.3     66.3
DAYS MAX >= 90     0                0.8    -0.8        1
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.0     0.0        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       10.89   1986
 MINIMUM           T   1979
TOTALS          4.07               2.95    1.12     2.86
DAILY AVG.      0.14               0.10    0.04     0.10
DAYS >= .01        6               11.1    -5.1        5
DAYS >= .10        5                5.8    -0.8        3
DAYS >= .50        3                1.9     1.1        2
DAYS >= 1.00       2                0.6     1.4        1
GREATEST
 24 HR. TOTAL   1.56   09/20 TO 09/21


DEGREE DAYS
HEATING TOTAL     71                123     -52       43
 SINCE 7/1       115                147     -32       MM
COOLING TOTAL     53                 62      -9       89
 SINCE 1/1       772                623     149       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              4.7
RESULTANT WIND SPEED/DIRECTION   1/220
HIGHEST WIND SPEED/DIRECTION    32/180    DATE  09/20
HIGHEST GUST SPEED/DIRECTION    52/180    DATE  09/20

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.24
NUMBER OF DAYS FAIR           20
NUMBER OF DAYS PC              9
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     71

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     MIXED PRECIP               0
HEAVY RAIN                5     RAIN                       4
LIGHT RAIN                9     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      13     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.

$$