Climatological Report (Daily)
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CDUS46 KSEW 210118
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
517 PM PST FRI JAN 20 2017


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JANUARY 20 2017...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1945 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         52    426 PM  64    1981  48      4       50
  MINIMUM         37    238 AM  16    1962  37      0       40
                                      1954
  AVERAGE         45                        42      3       45

PRECIPITATION (IN)
  TODAY            0.00          1.66 1972   0.19  -0.19     0.27
  MONTH TO DATE    4.04                      3.78   0.26     3.30
  SINCE OCT 1     24.44                     19.18   5.26    27.69
  SINCE JAN 1      4.04                      3.78   0.26     3.30

SNOWFALL (IN)
  TODAY            0.0           1.5  1951                   0.0
  MONTH TO DATE    3.0                                        T
  SINCE OCT 1      4.0                                        T
  SINCE JUL 1      4.0                                        T
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY           20                        23     -3       20
  MONTH TO DATE  588                       468    120      458
  SINCE DEC 1   1418                      1223    195     1135
  SINCE JUL 1   2269                      2406   -137     2146

 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  10   RESULTANT WIND DIRECTION   E (100)
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION     S (180)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION     S (180)
  AVERAGE WIND SPEED    11.1


SKY COVER
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    85           300 AM
 LOWEST     44          1200 PM
 AVERAGE    65

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   48        62      1981
 MINIMUM TEMPERATURE (F)   37        13      1962


SUNRISE AND SUNSET
JANUARY 20 2017.......SUNRISE   748 AM PST   SUNSET   453 PM PST
JANUARY 21 2017.......SUNRISE   747 AM PST   SUNSET   455 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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