Climatological Report (Daily)
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230
CDUS46 KSEW 240120
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
620 PM PDT MON OCT 23 2017


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 23 2017...
VALID TODAY AS OF 0600 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         65   1248 PM  73    1992  57      8       62
                                      1965
  MINIMUM         49    726 AM  32    1953  45      4       49
  AVERAGE         57                        51      6       56

PRECIPITATION (IN)
  TODAY            0.00          1.24 1960   0.14  -0.14     0.12
  MONTH TO DATE    4.79                      2.24   2.55     7.57
  SINCE OCT 1      4.79                      2.24   2.55     7.57
  SINCE JAN 1     33.80                     24.33   9.47    32.35

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

DEGREE DAYS
 HEATING
  TODAY            8                        14     -6        9
  MONTH TO DATE  266                       257      9      225
  SINCE SEP 1    344                       389    -45      334
  SINCE JUL 1    351                       474   -123      355

 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   3   RESULTANT WIND DIRECTION  SE (130)
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION    SE (120)
  HIGHEST GUST SPEED    12   HIGHEST GUST DIRECTION    SE (120)
  AVERAGE WIND SPEED     4.9


SKY COVER
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86          1200 AM
 LOWEST     44           100 PM
 AVERAGE    65

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   57        72      1965
 MINIMUM TEMPERATURE (F)   44        33      1954


SUNRISE AND SUNSET
OCTOBER 23 2017.......SUNRISE   740 AM PDT   SUNSET   606 PM PDT
OCTOBER 24 2017.......SUNRISE   741 AM PDT   SUNSET   604 PM PDT


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




$$




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