Climatological Report (Daily)
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000
CDUS46 KSEW 230836
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
1236 AM PST FRI FEB 23 2018


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR FEBRUARY 22 2018...

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)
 YESTERDAY
  MAXIMUM         38    405 PM  64    1966  51    -13       46
  MINIMUM         26R   813 AM  30    2005  37    -11       35
                                      1957
  AVERAGE         32                        44    -12       41

PRECIPITATION (IN)
  YESTERDAY        T             0.71 2002   0.12  -0.12     0.00
  MONTH TO DATE    1.71                      2.77  -1.06     8.33
  SINCE OCT 1     28.69                     23.74   4.95    32.95
  SINCE JAN 1      9.83                      8.34   1.49    12.55

SNOWFALL (IN)
  YESTERDAY       MM             3.1  1957                   0.0
  MONTH TO DATE    1.0                                       7.1
  SINCE OCT 1      4.0                                      11.1
  SINCE JUL 1      4.0                                      11.1
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       33                        21     12       24
  MONTH TO DATE  506                       480     26      498
  SINCE DEC 1   1890                      1946    -56     2164
  SINCE JUL 1   2879                      3129   -250     3015

 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   9   RESULTANT WIND DIRECTION   N (0)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     N (350)
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION     N (340)
  AVERAGE WIND SPEED     9.8


SKY COVER
  AVERAGE SKY COVER 0.4


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92          1200 AM
 LOWEST     35           400 PM
 AVERAGE    64

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


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 2018......SUNRISE   700 AM PST   SUNSET   545 PM PST
FEBRUARY 24 2018......SUNRISE   659 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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