Climatological Report (Daily)
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000
CDUS46 KSEW 090121
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
521 PM PST THU DEC 8 2016


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR DECEMBER 8 2016...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1945 TO 2016


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         38    148 PM  60    2015  46     -8       60
  MINIMUM         32    423 AM  13    1972  36     -4       50
  AVERAGE         35                        41     -6       55

PRECIPITATION (IN)
  TODAY            0.00          2.13 2015   0.18  -0.18     2.13
  MONTH TO DATE    0.87                      1.53  -0.66     5.43
  SINCE OCT 1     17.40                     11.58   5.82    18.61
  SINCE JAN 1     42.18                     33.67   8.51    39.05

SNOWFALL (IN)
  TODAY            0.0           2.2  1971                   0.0
  MONTH TO DATE    T                                         0.0
  SINCE OCT 1      T                                         0.0
  SINCE JUL 1      T                                         0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY           30                        24      6       10
  MONTH TO DATE  204                       188     16      127
  SINCE DEC 1    204                       188     16      127
  SINCE JUL 1   1055                      1371   -316     1138

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    291                       189    102      474
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED  16   RESULTANT WIND DIRECTION   E (70)
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION     E (70)
  HIGHEST GUST SPEED    35   HIGHEST GUST DIRECTION     E (70)
  AVERAGE WIND SPEED    15.8


SKY COVER
  AVERAGE SKY COVER 0.5


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    45           100 AM
 LOWEST     32           200 PM
 AVERAGE    39

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   46        61      2014
 MINIMUM TEMPERATURE (F)   36        18      2009


SUNRISE AND SUNSET
DECEMBER  8 2016......SUNRISE   744 AM PST   SUNSET   418 PM PST
DECEMBER  9 2016......SUNRISE   745 AM PST   SUNSET   418 PM PST


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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