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

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CDUS43 KGRR 121432
CLIGRR


CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
930 AM EST TUE DEC 12 2017


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

...THE GRAND RAPIDS MI CLIMATE SUMMARY FOR DECEMBER 12 2017...
VALID AS OF 0900 AM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1892 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         30   1236 AM  60    1991  36     -6       34
                                      1949
                                      1899
  MINIMUM         18    859 AM  -5    1958  25     -7       22
  AVERAGE         24                        30     -6       28

PRECIPITATION (IN)
  TODAY            T             1.36 1965   0.08  -0.08     0.03
  MONTH TO DATE    0.44                      1.06  -0.62     1.64
  SINCE DEC 1      0.44                      1.06  -0.62     1.64
  SINCE JAN 1     37.91                     36.83   1.08    44.97

SNOWFALL (IN)
  TODAY            T             6.0  1972   0.8   -0.8      0.2
  MONTH TO DATE    6.0                       7.2   -1.2     23.8
  SINCE DEC 1      6.0                       7.2   -1.2     23.8
  SINCE JUL 1      6.6                      14.5   -7.9     24.6
  SNOW DEPTH       2

DEGREE DAYS
 HEATING
  TODAY           41                        35      6       37
  MONTH TO DATE  382                       397    -15      409
  SINCE DEC 1    382                       397    -15      409
  SINCE JUL 1   1573                      1735   -162     1357

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    719                       699     20      936
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED  19   RESULTANT WIND DIRECTION  NW (320)
  HIGHEST WIND SPEED    28   HIGHEST WIND DIRECTION    NW (330)
  HIGHEST GUST SPEED    36   HIGHEST GUST DIRECTION    NW (320)
  AVERAGE WIND SPEED    19.2


SKY COVER
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  LT FREEZING RAIN
  LIGHT SNOW
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    75           200 AM
 LOWEST     62           900 AM
 AVERAGE    69

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


THE GRAND RAPIDS MI CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   35        61      2015
 MINIMUM TEMPERATURE (F)   24        -6      1958


SUNRISE AND SUNSET
DECEMBER 12 2017......SUNRISE   804 AM EST   SUNSET   508 PM EST
DECEMBER 13 2017......SUNRISE   805 AM EST   SUNSET   508 PM EST


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




$$

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