Climatological Report (Daily)
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000
CDUS46 KSEW 180118
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
517 PM PST FRI NOV 17 2017


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR NOVEMBER 17 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         50    203 PM  61    1995  51     -1       51
                                      1965
  MINIMUM         42    824 AM  23    1955  40      2       41
  AVERAGE         46                        45      1       46

PRECIPITATION (IN)
  TODAY            0.00          1.34 1946   0.23  -0.23     0.00
  MONTH TO DATE    4.16                      3.65   0.51     4.32
  SINCE OCT 1      8.96                      7.13   1.83    14.37
  SINCE JAN 1     37.97                     29.22   8.75    39.15

SNOWFALL (IN)
  TODAY            0.0           4.6  1955                   0.0
  MONTH TO DATE    0.4                                       0.0
  SINCE OCT 1      0.4                                       0.0
  SINCE JUL 1      0.4                                       0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY           19                        20     -1       19
  MONTH TO DATE  331                       308     23      190
  SINCE SEP 1    768                       820    -52      605
  SINCE JUL 1    775                       905   -130      626

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE SEP 1     75                        21     54        3
  SINCE JAN 1    392                       189    203      291
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED  13   RESULTANT WIND DIRECTION   S (200)
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    28   HIGHEST GUST DIRECTION     S (200)
  AVERAGE WIND SPEED    13.3


SKY COVER
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    89           400 AM
 LOWEST     66           200 PM
 AVERAGE    78

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   50        59      1965
 MINIMUM TEMPERATURE (F)   40        28      1946
                                             1955
                                             1950


SUNRISE AND SUNSET
NOVEMBER 17 2017......SUNRISE   717 AM PST   SUNSET   431 PM PST
NOVEMBER 18 2017......SUNRISE   719 AM PST   SUNSET   430 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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