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Climatological Report (Daily)
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CDUS46 KSEW 220119
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
619 PM PDT SUN OCT 21 2018


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 21 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         56    413 PM  72    1965  58     -2       58
  MINIMUM         45    844 AM  32    1949  45      0       45
  AVERAGE         51                        51      0       52

PRECIPITATION (IN)
  TODAY            0.00          1.61 2017   0.13  -0.13     1.61
  MONTH TO DATE    1.09                      1.98  -0.89     4.77
  SINCE OCT 1      1.09                      1.98  -0.89     4.77
  SINCE JAN 1     21.54                     24.07  -2.53    33.78

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           14                        14      0       13
  MONTH TO DATE  214                       229    -15      248
  SINCE SEP 1    306                       361    -55      326
  SINCE JUL 1    330                       446   -116      333

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE SEP 1     19                        21     -2       75
  SINCE JAN 1    404                       189    215      392
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   3   RESULTANT WIND DIRECTION  NE (40)
  HIGHEST WIND SPEED     8   HIGHEST WIND DIRECTION    NE (40)
  HIGHEST GUST SPEED     9   HIGHEST GUST DIRECTION    NE (40)
  AVERAGE WIND SPEED     4.0


SKY COVER
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  FOG
  FOG W/VISIBILITY <= 1/4 MILE
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          1200 AM
 LOWEST     72           400 PM
 AVERAGE    86

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   57        70      1965
 MINIMUM TEMPERATURE (F)   45        34      1950


SUNRISE AND SUNSET
OCTOBER 21 2018.......SUNRISE   737 AM PDT   SUNSET   610 PM PDT
OCTOBER 22 2018.......SUNRISE   738 AM PDT   SUNSET   608 PM PDT


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




$$
National Weather Service National Headquarters
