Climatological Report (Daily)
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000
CDUS46 KSEW 220828
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
1227 AM PST WED FEB 22 2017


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR FEBRUARY 21 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         48    336 PM  67    1973  51     -3       50
  MINIMUM         39   1159 PM  25    1957  37      2       35
  AVERAGE         44                        44      0       43

PRECIPITATION (IN)
  YESTERDAY        0.07          0.97 1949   0.12  -0.05     0.05
  MONTH TO DATE    8.33                      2.65   5.68     4.57
  SINCE OCT 1     32.95                     23.62   9.33    36.41
  SINCE JAN 1     12.55                      8.22   4.33    12.02

SNOWFALL (IN)
  YESTERDAY       MM             T    1993                   0.0
  MONTH TO DATE    7.1                                       0.0
  SINCE OCT 1     11.1                                        T
  SINCE JUL 1     11.1                                        T
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       21                        21      0       22
  MONTH TO DATE  474                       459     15      369
  SINCE DEC 1   2140                      1925    215     1700
  SINCE JUL 1   2991                      3108   -117     2711

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


WIND (MPH)
  RESULTANT WIND SPEED   6   RESULTANT WIND DIRECTION  NE (30)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     E (80)
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION     E (80)
  AVERAGE WIND SPEED     7.4


SKY COVER
  AVERAGE SKY COVER 1.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96           900 AM
 LOWEST     76           300 PM
 AVERAGE    86

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   51        64      1966
 MINIMUM TEMPERATURE (F)   37        30      2005
                                             1957


SUNRISE AND SUNSET
FEBRUARY 22 2017......SUNRISE   702 AM PST   SUNSET   544 PM PST
FEBRUARY 23 2017......SUNRISE   700 AM PST   SUNSET   546 PM PST


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




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