Climatological Report (Monthly)
Issued by NWS Grand Rapids, MI

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CXUS53 KGRR 011741
CLMGRR


CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
121 PM EDT THU OCT 1 2015

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

...THE GRAND RAPIDS MI CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1892 TO 2015

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            89   09/06        87       2       84  09/05
                        09/02                             09/04
LOWEST             43   09/30        35       8       40  09/17
AVG. MAXIMUM     77.5              73.0     4.5     72.6
AVG. MINIMUM     56.9              52.7     4.2     51.5
MEAN             67.2              62.8     4.4     62.1
DAYS MAX >= 90      0               0.3    -0.3        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.1    -0.1        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        11.85   1986
 MINIMUM         0.00   1979
TOTALS           2.26              4.28   -2.02     3.10
DAILY AVG.       0.08              0.14   -0.06     0.10
DAYS >= .01         6              10.7    -4.7       10
DAYS >= .10         4               6.9    -2.9        7
DAYS >= .50         2               2.7    -0.7        2
DAYS >= 1.00        0               1.0    -1.0        0
GREATEST
 24 HR. TOTAL    0.85   09/08 TO 09/08           09/10 TO 09/10

SNOWFALL (INCHES)
RECORDS
 TOTAL              T   2003
 24 HR TOTAL        T   MM
 SNOW DEPTH         T   MM
TOTALS            0.0               0.0     0.0      0.0
SINCE 7/1         0.0               0.0     0.0      0.0
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= TRACE       0               0.0     0.0        0
DAYS >= 1.0         0               0.0     0.0        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL      0.0   09/30 TO 09/30           09/30 TO 09/30

DEGREE_DAYS
HEATING TOTAL      60               132     -72      131
 SINCE 7/1         89               152     -63      150
COOLING TOTAL     135                67      68       51
 SINCE 1/1        642               692     -50      611

FREEZE DATES
RECORD
 EARLIEST     09/03/1946
 LATEST       06/04/1945
EARLIEST                        10/13
LATEST                          05/02
..................................................

WIND (MPH)
AVERAGE WIND SPEED              7.1
RESULTANT WIND SPEED/DIRECTION   1/190
HIGHEST WIND SPEED/DIRECTION    31/140    DATE  09/19
HIGHEST GUST SPEED/DIRECTION    41/270    DATE  09/08

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   61
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR           10
NUMBER OF DAYS PC             14
NUMBER OF DAYS CLOUDY          6

AVERAGE RH (PERCENT)     73

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              5     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       5
LIGHT RAIN                9     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      14     FOG W/VIS <= 1/4 MILE      1
HAZE                     10

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

&&

IN GRAND RAPIDS...
     TIED FOR 6TH WARMEST SEPTEMBER ON RECORD WITH 1927.

IN LANSING...
     TIED FOR 4TH WARMEST SEPTEMBER ON RECORD WITH 1921 AND 1931.

IN MUSKEGON...
     2ND WARMEST SEPTEMBER ON RECORD. WARMEST WAS IN 1961.

$$

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