Climatological Report (Daily)
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000
CDUS46 KSEW 230830
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
1230 AM PST THU FEB 23 2017


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR FEBRUARY 22 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         46    445 PM  64    1966  51     -5       51
  MINIMUM         35    952 PM  30    2005  37     -2       36
                                      1957
  AVERAGE         41                        44     -3       44

PRECIPITATION (IN)
  YESTERDAY        0.00          0.71 2002   0.12  -0.12     0.17
  MONTH TO DATE    8.33                      2.77   5.56     4.74
  SINCE OCT 1     32.95                     23.74   9.21    36.58
  SINCE JAN 1     12.55                      8.34   4.21    12.19

SNOWFALL (IN)
  YESTERDAY        0.0           3.1  1957                   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       24                        21      3       21
  MONTH TO DATE  498                       480     18      390
  SINCE DEC 1   2164                      1946    218     1721
  SINCE JUL 1   3015                      3129   -114     2732

 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   2   RESULTANT WIND DIRECTION  SE (120)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION    NE (40)
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION    NE (40)
  AVERAGE WIND SPEED     5.0


SKY COVER
  AVERAGE SKY COVER 0.6


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92           400 AM
 LOWEST     58           400 PM
 AVERAGE    75

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   51        61      1983
                                             1958
 MINIMUM TEMPERATURE (F)   37        27      2011


SUNRISE AND SUNSET
FEBRUARY 23 2017......SUNRISE   700 AM PST   SUNSET   546 PM PST
FEBRUARY 24 2017......SUNRISE   658 AM PST   SUNSET   547 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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