Climatological Report (Daily)
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021
CDUS43 KGRR 160519
CLIMKG


CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
1219 AM EST SAT DEC 16 2017


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

...THE MUSKEGON MI CLIMATE SUMMARY FOR DECEMBER 15 2017...

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)
 YESTERDAY
  MAXIMUM         32   1159 PM  58    1971  35     -3       19
  MINIMUM         21    125 AM  -2    1943  25     -4       10
  AVERAGE         27                        30     -3       15

PRECIPITATION (IN)
  YESTERDAY        0.08          1.48 1971   0.08   0.00     0.05
  MONTH TO DATE    1.17                      1.37  -0.20     1.27
  SINCE DEC 1      1.17                      1.37  -0.20     1.27
  SINCE JAN 1     34.94                     32.31   2.63    38.60

SNOWFALL (IN)
  YESTERDAY        1.7          12.1  1987   1.0    0.7      1.0
  MONTH TO DATE   16.1                      12.8    3.3     15.4
  SINCE DEC 1     16.1                      12.8    3.3     15.4
  SINCE JUL 1     16.1                      19.0   -2.9     16.4
  SNOW DEPTH      10

DEGREE DAYS
 HEATING
  YESTERDAY       38                        35      3       50
  MONTH TO DATE  501                       493      8      515
  SINCE DEC 1    501                       493      8      515
  SINCE JUL 1   1660                      1860   -200     1420

 COOLING
  YESTERDAY        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  13   RESULTANT WIND DIRECTION   W (280)
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION     W (290)
  AVERAGE WIND SPEED    12.7


SKY COVER
  AVERAGE SKY COVER 1.0


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    81           900 AM
 LOWEST     57           400 PM
 AVERAGE    69

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


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


SUNRISE AND SUNSET
DECEMBER 16 2017......SUNRISE   811 AM EST   SUNSET   511 PM EST
DECEMBER 17 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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