Climatological Report (Daily)
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CDUS46 KSEW 240831
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
131 AM PDT TUE OCT 24 2017


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 23 2017...

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)
 YESTERDAY
  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)
  YESTERDAY        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)
  YESTERDAY        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
  YESTERDAY        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
  YESTERDAY        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   2   RESULTANT WIND DIRECTION   E (100)
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION     N (20)
  HIGHEST GUST SPEED    13   HIGHEST GUST DIRECTION     N (20)
  AVERAGE WIND SPEED     5.2


SKY COVER
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  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 TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   57        72      1965
 MINIMUM TEMPERATURE (F)   44        33      1954


SUNRISE AND SUNSET
OCTOBER 24 2017.......SUNRISE   741 AM PDT   SUNSET   604 PM PDT
OCTOBER 25 2017.......SUNRISE   743 AM PDT   SUNSET   603 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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