Climatological Report (Daily)
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000
CDUS46 KSEW 210828
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
127 AM PDT TUE APR 21 2015


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR APRIL 20 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         73    441 PM  74    2009  59     14       60
  MINIMUM         46    438 AM  30    1961  43      3       42
  AVERAGE         60                        51      9       51

PRECIPITATION (IN)
  YESTERDAY        0.00          0.45 1965   0.08  -0.08     0.00
  MONTH TO DATE    1.43                      1.94  -0.51     2.18
  SINCE OCT 1     31.21                     30.13   1.08    28.42
  SINCE JAN 1     14.83                     14.73   0.10    21.43

SNOWFALL (IN)
  YESTERDAY        0.0          MM      MM                   0.0
  MONTH TO DATE    0.0                                       0.0
  SINCE OCT 1      0.8                                       4.0
  SINCE JUL 1      0.8                                       4.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        5                        14     -9       14
  MONTH TO DATE  279                       308    -29      264
  SINCE MAR 1    720                       882   -162      768
  SINCE JUL 1   3223                      4136   -913     3843

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE MAR 1      0                         0      0        0
  SINCE JAN 1      0                         0      0        0
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   4   RESULTANT WIND DIRECTION   N (10)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION    NE (50)
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION    NE (40)
  AVERAGE WIND SPEED     5.8


SKY COVER
  AVERAGE SKY COVER 0.2


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    80           500 AM
 LOWEST     27           400 PM
 AVERAGE    54

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   59        76      1982
 MINIMUM TEMPERATURE (F)   43        29      1951


SUNRISE AND SUNSET
APRIL 21 2015.........SUNRISE   610 AM PDT   SUNSET   807 PM PDT
APRIL 22 2015.........SUNRISE   608 AM PDT   SUNSET   808 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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