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

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CDUS43 KDTX 130536
CLIDTW


CLIMATE REPORT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1236 AM EST WED DEC 13 2017


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

...THE DETROIT MI CLIMATE SUMMARY FOR DECEMBER 12 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         32    249 AM  63    2015  37     -5       36
  MINIMUM         16   1046 PM  -2    1988  25     -9       24
  AVERAGE         24                        31     -7       30

PRECIPITATION (IN)
  YESTERDAY        0.01          1.39 1946   0.08  -0.07     0.01
  MONTH TO DATE    0.44                      0.99  -0.55     1.03
  SINCE DEC 1      0.44                      0.99  -0.55     1.03
  SINCE JAN 1     34.42                     32.00   2.42    33.61

SNOWFALL (IN)
  YESTERDAY        0.2           6.3  2010   0.3   -0.1      0.1
  MONTH TO DATE    6.1                       2.9    3.2     11.7
  SINCE DEC 1      6.1                       2.9    3.2     11.7
  SINCE JUL 1      6.1                       4.5    1.6     11.8
  SNOW DEPTH       4

DEGREE DAYS
 HEATING
  YESTERDAY       41                        34      7       35
  MONTH TO DATE  371                       385    -14      385
  SINCE DEC 1    371                       385    -14      385
  SINCE JUL 1   1434                      1600   -166     1253

 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    29   HIGHEST WIND DIRECTION    NW (310)
  HIGHEST GUST SPEED    36   HIGHEST GUST DIRECTION    NW (330)
  AVERAGE WIND SPEED    14.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LT FREEZING RAIN
  SNOW
  LIGHT SNOW
  FOG
  BLOWING SNOW


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92          1200 AM
 LOWEST     45           200 PM
 AVERAGE    69

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


THE DETROIT MI CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   37        62      2015
 MINIMUM TEMPERATURE (F)   25         1      1962
                                             1903


SUNRISE AND SUNSET
DECEMBER 13 2017......SUNRISE   754 AM EST   SUNSET   502 PM EST
DECEMBER 14 2017......SUNRISE   755 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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