Climatological Report (Daily)
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CDUS46 KSEW 091739 CCA
CLISEA

CLIMATE REPORT...CORRECTED
NATIONAL WEATHER SERVICE SEATTLE WA
938 AM PST FRI DEC 9 2016


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR DECEMBER 8 2016...

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)
 YESTERDAY
  MAXIMUM         38    148 PM  60    2015  46     -8       60
  MINIMUM         30    942 PM  13    1972  36     -6       50
  AVERAGE         34                        41     -7       55

PRECIPITATION (IN)
  YESTERDAY        0.06          2.13 2015   0.18  -0.12     2.13
  MONTH TO DATE    0.93                      1.53  -0.60     5.43
  SINCE OCT 1     17.46                     11.58   5.88    18.61
  SINCE JAN 1     42.24                     33.67   8.57    39.05

SNOWFALL (IN)
  YESTERDAY        0.5           2.2  1971                   0.0
  MONTH TO DATE    0.5                                       0.0
  SINCE OCT 1      0.5                                       0.0
  SINCE JUL 1      0.5                                       0.0
  SNOW DEPTH       1

DEGREE DAYS
 HEATING
  YESTERDAY       31                        24      7       10
  MONTH TO DATE  205                       188     17      127
  SINCE DEC 1    205                       188     17      127
  SINCE JUL 1   1056                      1371   -315     1138

 COOLING
  YESTERDAY        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  15   RESULTANT WIND DIRECTION   E (80)
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION    SE (120)
  HIGHEST GUST SPEED    35   HIGHEST GUST DIRECTION     E (70)
  AVERAGE WIND SPEED    14.4


SKY COVER
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT SNOW
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    85          1000 PM
 LOWEST     32           200 PM
 AVERAGE    59

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


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


SUNRISE AND SUNSET
DECEMBER  9 2016......SUNRISE   745 AM PST   SUNSET   418 PM PST
DECEMBER 10 2016......SUNRISE   746 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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