Climatological Report (Daily)
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000
CDUS46 KSEW 170127
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
526 PM PST TUE JAN 16 2018


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JANUARY 16 2018...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1945 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         56R   141 PM  55    2011  47      9       45
  MINIMUM         48    929 AM  13    1950  37     11       30
  AVERAGE         52                        42     10       38

PRECIPITATION (IN)
  TODAY            0.19          1.78 1958   0.20  -0.01     0.00
  MONTH TO DATE    3.13                      3.03   0.10     1.00
  SINCE OCT 1     21.99                     18.43   3.56    21.40
  SINCE JAN 1      3.13                      3.03   0.10     1.00

SNOWFALL (IN)
  TODAY            0.0           3.5  1954                   0.0
  MONTH TO DATE    0.0                                       3.0
  SINCE OCT 1      3.0                                       4.0
  SINCE JUL 1      3.0                                       4.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY           13                        23    -10       27
  MONTH TO DATE  308                       376    -68      513
  SINCE DEC 1   1077                      1131    -54     1343
  SINCE JUL 1   2066                      2314   -248     2194

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1      0                         0      0        0
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   9   RESULTANT WIND DIRECTION   S (200)
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     S (190)
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION    SW (210)
  AVERAGE WIND SPEED     9.5


SKY COVER
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           200 AM
 LOWEST     54           200 PM
 AVERAGE    74

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   47        58      1946
 MINIMUM TEMPERATURE (F)   37        15      1950


SUNRISE AND SUNSET
JANUARY 16 2018.......SUNRISE   751 AM PST   SUNSET   447 PM PST
JANUARY 17 2018.......SUNRISE   751 AM PST   SUNSET   449 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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