Climatological Report (Daily)
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000
CDUS46 KSEW 190122
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
522 PM PST THU DEC 18 2014


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR DECEMBER 18 2014...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1945 TO 2014


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         49    414 PM  54    2004  45      4       46
                                      2003
                                      1972
  MINIMUM         44    858 AM  18    1964  35      9       36
  AVERAGE         47                        40      7       41

PRECIPITATION (IN)
  TODAY            0.16          1.23 1960   0.16   0.00     0.05
  MONTH TO DATE    2.24                      3.19  -0.95     0.70
  SINCE OCT 1     13.83                     13.24   0.59     6.03
  SINCE JAN 1     45.95                     35.33  10.62    31.60

SNOWFALL (IN)
  TODAY            0.0           5.1  1968                   0.0
  MONTH TO DATE    0.0                                        T
  SINCE OCT 1      0.8                                        T
  SINCE JUL 1      0.8                                        T
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY           18                        25     -7       24
  MONTH TO DATE  318                       435   -117      485
  SINCE DEC 1    318                       435   -117      485
  SINCE JUL 1   1158                      1618   -460     1507

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    369                       189    180      385
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   5   RESULTANT WIND DIRECTION  SE (130)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION    SE (120)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION    SE (120)
  AVERAGE WIND SPEED     5.8


SKY COVER
  AVERAGE SKY COVER 1.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92          1200 AM
 LOWEST     71          1000 AM
 AVERAGE    82

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   45        56      1994
                                             1969
 MINIMUM TEMPERATURE (F)   35        17      1990
                                             1949


SUNRISE AND SUNSET
DECEMBER 18 2014......SUNRISE   752 AM PST   SUNSET   420 PM PST
DECEMBER 19 2014......SUNRISE   753 AM PST   SUNSET   420 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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