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

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000
CDUS43 KGRR 150536
CLIGRR


CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
1235 AM EST FRI DEC 15 2017


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

...THE GRAND RAPIDS MI CLIMATE SUMMARY FOR DECEMBER 14 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         21    832 PM  59    2015  35    -14       22
                                      1975
  MINIMUM          0    833 AM  -1    1943  24    -24       11
  AVERAGE         11                        29    -18       17

PRECIPITATION (IN)
  YESTERDAY        0.03          1.32 1975   0.07  -0.04     0.10
  MONTH TO DATE    0.80                      1.21  -0.41     1.79
  SINCE DEC 1      0.80                      1.21  -0.41     1.79
  SINCE JAN 1     38.27                     36.98   1.29    45.12

SNOWFALL (IN)
  YESTERDAY        0.8           5.1  1907   0.8    0.0      2.6
  MONTH TO DATE   11.7                       8.7    3.0     27.1
  SINCE DEC 1     11.7                       8.7    3.0     27.1
  SINCE JUL 1     12.3                      16.0   -3.7     27.9
  SNOW DEPTH       6

DEGREE DAYS
 HEATING
  YESTERDAY       54                        36     18       48
  MONTH TO DATE  482                       468     14      501
  SINCE DEC 1    482                       468     14      501
  SINCE JUL 1   1673                      1806   -133     1449

 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   2   RESULTANT WIND DIRECTION  SW (240)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     N (360)
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION     N (350)
  AVERAGE WIND SPEED     5.4


SKY COVER
  POSSIBLE SUNSHINE  11 PERCENT
  AVERAGE SKY COVER 0.5


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT SNOW
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    91           700 AM
 LOWEST     67          1200 PM
 AVERAGE    79

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


THE GRAND RAPIDS MI CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   35        60      1971
 MINIMUM TEMPERATURE (F)   24        -7      1917


SUNRISE AND SUNSET
DECEMBER 15 2017......SUNRISE   806 AM EST   SUNSET   509 PM EST
DECEMBER 16 2017......SUNRISE   807 AM EST   SUNSET   509 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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