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

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790
CDUS43 KGRR 081426
CLIGRR


CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
924 AM EST FRI DEC 8 2017


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

...THE GRAND RAPIDS MI CLIMATE SUMMARY FOR DECEMBER 8 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         26    228 AM  64    1966  37    -11       29
  MINIMUM         19    829 AM   2    2005  26     -7       24
  AVERAGE         23                        31     -8       27

PRECIPITATION (IN)
  TODAY            0.00          0.78 1980   0.09  -0.09     0.03
                                      1966
  MONTH TO DATE    0.17                      0.72  -0.55     0.61
  SINCE DEC 1      0.17                      0.72  -0.55     0.61
  SINCE JAN 1     37.64                     36.49   1.15    43.94

SNOWFALL (IN)
  TODAY            0.0           4.5  1937   0.6   -0.6      1.1
  MONTH TO DATE    1.8                       4.5   -2.7      6.7
  SINCE DEC 1      1.8                       4.5   -2.7      6.7
  SINCE JUL 1      2.4                      11.8   -9.4      7.5
  SNOW DEPTH       1

DEGREE DAYS
 HEATING
  TODAY           42                        34      8       38
  MONTH TO DATE  228                       259    -31      251
  SINCE DEC 1    228                       259    -31      251
  SINCE JUL 1   1419                      1597   -178     1199

 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  12   RESULTANT WIND DIRECTION  SW (220)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     W (250)
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION     W (250)
  AVERAGE WIND SPEED    13.0


SKY COVER
  AVERAGE SKY COVER 0.5


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    84           700 AM
 LOWEST     68           100 AM
 AVERAGE    76

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


THE GRAND RAPIDS MI CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   37        59      1946
 MINIMUM TEMPERATURE (F)   25        -1      1964


SUNRISE AND SUNSET
DECEMBER  8 2017......SUNRISE   800 AM EST   SUNSET   508 PM EST
DECEMBER  9 2017......SUNRISE   801 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.




$$

63




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