Climatological Report (Daily)
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CDUS43 KGRR 151425
CLIMKG


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


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

...THE MUSKEGON MI CLIMATE SUMMARY FOR DECEMBER 15 2017...
VALID AS OF 0900 AM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1896 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         29    634 AM  58    1971  35     -6       19
  MINIMUM         21    125 AM  -2    1943  25     -4       10
  AVERAGE         25                        30     -5       15

PRECIPITATION (IN)
  TODAY            0.05          1.48 1971   0.08  -0.03     0.05
  MONTH TO DATE    1.14                      1.37  -0.23     1.27
  SINCE DEC 1      1.14                      1.37  -0.23     1.27
  SINCE JAN 1     34.91                     32.31   2.60    38.60

SNOWFALL (IN)
  TODAY            T            12.1  1987   1.0   -1.0      1.0
  MONTH TO DATE   14.4                      12.8    1.6     15.4
  SINCE DEC 1     14.4                      12.8    1.6     15.4
  SINCE JUL 1     14.4                      19.0   -4.6     16.4
  SNOW DEPTH      10

DEGREE DAYS
 HEATING
  TODAY           40                        35      5       50
  MONTH TO DATE  503                       493     10      515
  SINCE DEC 1    503                       493     10      515
  SINCE JUL 1   1662                      1860   -198     1420

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    615                       566     49      774
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED  10   RESULTANT WIND DIRECTION   W (260)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     W (250)
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION    NW (300)
  AVERAGE WIND SPEED    12.3


SKY COVER
  AVERAGE SKY COVER 0.9


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    81           900 AM
 LOWEST     58           400 AM
 AVERAGE    70

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


THE MUSKEGON MI CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   35        58      1984
 MINIMUM TEMPERATURE (F)   25         2      1943


SUNRISE AND SUNSET
DECEMBER 15 2017......SUNRISE   810 AM EST   SUNSET   510 PM EST
DECEMBER 16 2017......SUNRISE   811 AM EST   SUNSET   511 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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