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

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CDUS43 KGRR 130605
CLIGRR


CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
104 AM EST WED DEC 13 2017


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

...THE GRAND RAPIDS MI CLIMATE SUMMARY FOR DECEMBER 12 2017...

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)
 YESTERDAY
  MAXIMUM         30   1236 AM  60    1991  36     -6       34
                                      1949
                                      1899
  MINIMUM         17    624 PM  -5    1958  25     -8       22
  AVERAGE         24                        30     -6       28

PRECIPITATION (IN)
  YESTERDAY        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)
  YESTERDAY        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
  YESTERDAY       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
  YESTERDAY        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  16   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    15.1


SKY COVER
  POSSIBLE SUNSHINE  48 PERCENT
  AVERAGE SKY COVER 0.7


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    75           200 AM
 LOWEST     56          1000 AM
 AVERAGE    66

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


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


SUNRISE AND SUNSET
DECEMBER 13 2017......SUNRISE   805 AM EST   SUNSET   508 PM EST
DECEMBER 14 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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