Climatological Report (Daily)
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000
CDUS46 KSEW 190832
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
1231 AM PST MON FEB 19 2018


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR FEBRUARY 18 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         39   1215 PM  62    1977  50    -11       45
  MINIMUM         30   1126 PM  20    1990  37     -7       42
  AVERAGE         35                        44     -9       44

PRECIPITATION (IN)
  YESTERDAY        0.06          1.63 1968   0.11  -0.05     0.15
  MONTH TO DATE    1.65                      2.29  -0.64     8.00
  SINCE OCT 1     28.63                     23.26   5.37    32.62
  SINCE JAN 1      9.77                      7.86   1.91    12.22

SNOWFALL (IN)
  YESTERDAY        T   R         T    1986                   0.0
  MONTH TO DATE    T                                         7.1
  SINCE OCT 1      3.0                                      11.1
  SINCE JUL 1      3.0                                      11.1
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       30                        22      8       21
  MONTH TO DATE  373                       396    -23      410
  SINCE DEC 1   1757                      1862   -105     2076
  SINCE JUL 1   2746                      3045   -299     2927

 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   5   RESULTANT WIND DIRECTION  NW (310)
  HIGHEST WIND SPEED    32   HIGHEST WIND DIRECTION    NW (330)
  HIGHEST GUST SPEED    42   HIGHEST GUST DIRECTION     N (340)
  AVERAGE WIND SPEED    17.3


SKY COVER
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    82           100 AM
 LOWEST     51           500 PM
 AVERAGE    67

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   50        67      1977
 MINIMUM TEMPERATURE (F)   37        22      1990
                                             1986


SUNRISE AND SUNSET
FEBRUARY 19 2018......SUNRISE   707 AM PST   SUNSET   539 PM PST
FEBRUARY 20 2018......SUNRISE   706 AM PST   SUNSET   541 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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