Climatological Report (Daily)
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000
CDUS46 KSEW 270829
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
129 AM PDT THU AUG 27 2015


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 26 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1945 TO 2015


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         83    315 PM  91    1986  75      8       88
  MINIMUM         57    618 AM  46    1957  55      2       60
  AVERAGE         70                        65      5       74

PRECIPITATION (IN)
  YESTERDAY        0.00          0.67 1977   0.04  -0.04     0.00
  MONTH TO DATE    1.58                      0.69   0.89     1.43
  SINCE OCT 1     34.29                     35.80  -1.51    36.50
  SINCE JAN 1     17.91                     20.40  -2.49    29.51

DEGREE DAYS
 HEATING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE    5                        26    -21        5
  SINCE JUN 1     36                       219   -183      113
  SINCE JUL 1      7                        75    -68       19

 COOLING
  YESTERDAY        5                         2      3        9
  MONTH TO DATE  123                        66     57      135
  SINCE JUN 1    444                       158    286      298
  SINCE JAN 1    451                       164    287      313
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   3   RESULTANT WIND DIRECTION   N (340)
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION    NE (30)
  HIGHEST GUST SPEED    15   HIGHEST GUST DIRECTION    NE (40)
  AVERAGE WIND SPEED     3.9


SKY COVER
  AVERAGE SKY COVER 0.6


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    72           500 AM
 LOWEST     24           400 PM
 AVERAGE    48

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   75        88      2009
                                             1994
                                             1986
 MINIMUM TEMPERATURE (F)   55        44      1952


SUNRISE AND SUNSET
AUGUST 27 2015........SUNRISE   621 AM PDT   SUNSET   759 PM PDT
AUGUST 28 2015........SUNRISE   622 AM PDT   SUNSET   757 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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