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

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721
CDUS43 KGRR 140655 CCA
CLIGRR

CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
1249 AM EST THU DEC 14 2017


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

...THE GRAND RAPIDS MI CLIMATE SUMMARY FOR DECEMBER 13 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    125 PM  61    2015  35    -14       26
  MINIMUM         17    542 AM  -6    1958  24     -7       16
  AVERAGE         19                        30    -11       21

PRECIPITATION (IN)
  YESTERDAY        0.33          0.81 1975   0.08   0.25     0.05
  MONTH TO DATE    0.77                      1.14  -0.37     1.69
  SINCE DEC 1      0.77                      1.14  -0.37     1.69
  SINCE JAN 1     38.24                     36.91   1.33    45.02

SNOWFALL (IN)
  YESTERDAY        4.9           6.8  1973   0.7    4.2      0.7
  MONTH TO DATE   10.9                       7.9    3.0     24.5
  SINCE DEC 1     10.9                       7.9    3.0     24.5
  SINCE JUL 1     11.5                      15.2   -3.7     25.3
  SNOW DEPTH       2

DEGREE DAYS
 HEATING
  YESTERDAY       46                        35     11       44
  MONTH TO DATE  428                       432      4      453
  SINCE DEC 1    428                       432      4      453
  SINCE JUL 1   1619                      1770   -151     1401

 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   7   RESULTANT WIND DIRECTION   E (90)
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION     E (110)
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION     E (100)
  AVERAGE WIND SPEED    12.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          1000 AM
 LOWEST     74          1200 AM
 AVERAGE    87

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


THE GRAND RAPIDS MI CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   35        59      2015
                                             1975
 MINIMUM TEMPERATURE (F)   24        -1      1943


SUNRISE AND SUNSET
DECEMBER 14 2017......SUNRISE   805 AM EST   SUNSET   508 PM EST
DECEMBER 15 2017......SUNRISE   806 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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