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

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CDUS43 KGRR 090536
CLIGRR


CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
1235 AM EST SAT DEC 9 2017


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

...THE GRAND RAPIDS MI CLIMATE SUMMARY FOR DECEMBER 8 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   1128 PM  64    1966  37     -7       29
  MINIMUM         19    829 AM   2    2005  26     -7       24
  AVERAGE         25                        31     -6       27

PRECIPITATION (IN)
  YESTERDAY        T             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)
  YESTERDAY        0.1           4.5  1937   0.6   -0.5      1.1
  MONTH TO DATE    1.9                       4.5   -2.6      6.7
  SINCE DEC 1      1.9                       4.5   -2.6      6.7
  SINCE JUL 1      2.5                      11.8   -9.3      7.5
  SNOW DEPTH       1

DEGREE DAYS
 HEATING
  YESTERDAY       40                        34      6       38
  MONTH TO DATE  226                       259    -33      251
  SINCE DEC 1    226                       259    -33      251
  SINCE JUL 1   1417                      1597   -180     1199

 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   9   RESULTANT WIND DIRECTION  SW (230)
  HIGHEST WIND SPEED    24   HIGHEST WIND DIRECTION     W (250)
  HIGHEST GUST SPEED    31   HIGHEST GUST DIRECTION    SW (240)
  AVERAGE WIND SPEED    10.8


SKY COVER
  POSSIBLE SUNSHINE  12 PERCENT
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT SNOW


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    85           600 PM
 LOWEST     68           100 AM
 AVERAGE    77

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


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


SUNRISE AND SUNSET
DECEMBER  9 2017......SUNRISE   801 AM EST   SUNSET   508 PM EST
DECEMBER 10 2017......SUNRISE   802 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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