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

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CXUS53 KGRR 011028
CLMGRR


CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
621 AM EDT TUE OCT 1 2013

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

...THE GRAND RAPIDS MI CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2013...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1892 TO 2013

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            94   09/10        87       7       89  09/03
LOWEST             38   09/17        35       3       39  09/24
                        09/23                             09/19
AVG. MAXIMUM     74.6              73.0     1.6     74.2
AVG. MINIMUM     52.9              52.7     0.2     51.7
MEAN             63.7              62.8     0.9     63.0
DAYS MAX >= 90      1               0.3     0.7        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           1.25              4.28   -3.03     1.97
DAILY AVG.       0.04              0.14   -0.10     0.07
DAYS >= .01         6              10.7    -4.7        9
DAYS >= .10         4               6.9    -2.9        6
DAYS >= .50         1               2.7    -1.7        1
DAYS >= 1.00        0               1.0    -1.0        1
GREATEST
 24 HR. TOTAL    0.76   09/09 TO 09/09           09/04 TO 09/04



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


DEGREE_DAYS
HEATING TOTAL     112               132     -20      125
 SINCE 7/1        138               152     -14      134
COOLING TOTAL      83                67      16       73
 SINCE 1/1        753               692      61     1035

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

WIND (MPH)
AVERAGE WIND SPEED              7.2
RESULTANT WIND SPEED/DIRECTION   1/223
HIGHEST WIND SPEED/DIRECTION    24/240    DATE  09/10
HIGHEST GUST SPEED/DIRECTION    33/240    DATE  09/10

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   70
AVERAGE SKY COVER           0.50

AVERAGE RH (PERCENT)     68

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       3
LIGHT RAIN               10     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      17     FOG W/VIS <= 1/4 MILE      1
HAZE                      5

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

$$





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