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Climatological Report (Daily)
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CDUS46 KSEW 180827
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
1227 AM PST TUE FEB 18 2020


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...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR FEBRUARY 17 2020...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1945 TO 2020


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         48    425 PM  63    2016  50     -2       43
  MINIMUM         34    750 AM  23    1993  37     -3       32
                                      1990
  AVERAGE         41                        43     -2       38

PRECIPITATION (IN)
  YESTERDAY        0.00          0.68 2012   0.12  -0.12      T
  MONTH TO DATE    3.54                      2.18   1.36     4.08
  SINCE OCT 1     26.11                     23.15   2.96    23.19
  SINCE JAN 1     12.77                      7.75   5.02     7.91

SNOWFALL (IN)
  YESTERDAY        0.0           6.3  1990                   0.0
  MONTH TO DATE    T                                        20.2
  SINCE OCT 1      0.7                                      20.2
  SINCE JUL 1      0.7                                      20.2
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       24                        22      2       27
  MONTH TO DATE  369                       374     -5      504
  SINCE DEC 1   1612                      1840   -228     1753
  SINCE JUL 1   2689                      3023   -334     2696

 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    12   HIGHEST WIND DIRECTION    SE (140)
  HIGHEST GUST SPEED    14   HIGHEST GUST DIRECTION    NE (30)
  AVERAGE WIND SPEED     5.2


SKY COVER
  AVERAGE SKY COVER 0.6


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    89           700 AM
 LOWEST     53           200 PM
 AVERAGE    71

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   50        62      1977
 MINIMUM TEMPERATURE (F)   37        20      1990


SUNRISE AND SUNSET
FEBRUARY 18 2020......SUNRISE   710 AM PST   SUNSET   537 PM PST
FEBRUARY 19 2020......SUNRISE   708 AM PST   SUNSET   538 PM PST


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




$$
National Weather Service National Headquarters
