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

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CDUS43 KGRR 152235
CLIGRR


CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
534 PM EST FRI DEC 15 2017


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

...THE GRAND RAPIDS MI CLIMATE SUMMARY FOR DECEMBER 15 2017...
VALID TODAY AS OF 0500 PM LOCAL TIME.

SNOWFALL IS THROUGH 5 PM TODAY

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         27   1203 PM  60    1971  35     -8       16
  MINIMUM         19    113 AM  -7    1917  24     -5        4
  AVERAGE         23                        29     -6       10

PRECIPITATION (IN)
  TODAY            0.08          2.25 1893   0.08   0.00     0.08
  MONTH TO DATE    0.88                      1.29  -0.41     1.87
  SINCE DEC 1      0.88                      1.29  -0.41     1.87
  SINCE JAN 1     38.35                     37.06   1.29    45.20

SNOWFALL (IN)
  TODAY            2.7           6.7  1987   0.7    2.0      1.7
  MONTH TO DATE   14.4                       9.4    5.0     28.8
  SINCE DEC 1     14.4                       9.4    5.0     28.8
  SINCE JUL 1     15.0                      16.7   -1.7     29.6
  SNOW DEPTH       6

DEGREE DAYS
 HEATING
  TODAY           42                        36      6       55
  MONTH TO DATE  524                       504     20      556
  SINCE DEC 1    524                       504     20      556
  SINCE JUL 1   1715                      1842   -127     1504

 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   9   RESULTANT WIND DIRECTION  SW (230)
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION     W (270)
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION     W (270)
  AVERAGE WIND SPEED    11.9


SKY COVER
  AVERAGE SKY COVER 1.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  HEAVY SNOW
  SNOW
  LIGHT SNOW
  FOG
  FOG W/VISIBILITY <= 1/4 MILE
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92           900 AM
 LOWEST     63           500 PM
 AVERAGE    78

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


THE GRAND RAPIDS MI CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   34        61      1984
 MINIMUM TEMPERATURE (F)   23        -2      1989
                                             1901


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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