Climatological Report (Daily)
Issued by NWS Detroit/Pontiac, MI

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CDUS43 KDTX 150544
CLIDTW


CLIMATE REPORT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1244 AM EST FRI DEC 15 2017


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

...THE DETROIT MI CLIMATE SUMMARY FOR DECEMBER 14 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1874 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         27    700 PM  65    1975  36     -9       19
  MINIMUM         14   1013 PM  -1    1914  24    -10        6
  AVERAGE         21                        30     -9       13

PRECIPITATION (IN)
  YESTERDAY        0.01          1.35 1901   0.08  -0.07     0.05
  MONTH TO DATE    0.87                      1.15  -0.28     1.08
  SINCE DEC 1      0.87                      1.15  -0.28     1.08
  SINCE JAN 1     34.85                     32.16   2.69    33.66

SNOWFALL (IN)
  YESTERDAY        0.2          10.0  1922   0.3   -0.1      1.5
  MONTH TO DATE   12.6                       3.5    9.1     13.2
  SINCE DEC 1     12.6                       3.5    9.1     13.2
  SINCE JUL 1     12.6                       5.1    7.5     13.3
  SNOW DEPTH       9

DEGREE DAYS
 HEATING
  YESTERDAY       44                        35      9       52
  MONTH TO DATE  460                       454      6      482
  SINCE DEC 1    460                       454      6      482
  SINCE JUL 1   1523                      1669   -146     1350

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    918                       803    115     1177
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     N (360)
  HIGHEST GUST SPEED    19   HIGHEST GUST DIRECTION     N (350)
  AVERAGE WIND SPEED     8.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT SNOW
  HAZE
  BLOWING SNOW


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    84          1200 AM
 LOWEST     42           300 PM
 AVERAGE    63

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


THE DETROIT MI CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   36        61      1933
 MINIMUM TEMPERATURE (F)   24        -1      1916
                                             1914


SUNRISE AND SUNSET
DECEMBER 15 2017......SUNRISE   755 AM EST   SUNSET   502 PM EST
DECEMBER 16 2017......SUNRISE   756 AM EST   SUNSET   502 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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