Climatological Report (Daily)
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CDUS46 KSEW 250837
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
137 AM PDT SAT MAR 25 2017


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MARCH 24 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         54    258 PM  68    2010  55     -1       52
  MINIMUM         44   1112 PM  30    1975  40      4       43
                                      1965
  AVERAGE         49                        48      1       48

PRECIPITATION (IN)
  YESTERDAY        0.24          0.98 1953   0.11   0.13     0.00
  MONTH TO DATE    6.11                      2.94   3.17     5.21
  SINCE OCT 1     39.58                     27.41  12.17    43.02
  SINCE JAN 1     19.18                     12.01   7.17    18.63

SNOWFALL (IN)
  YESTERDAY        0.0           T    1985                   0.0
  MONTH TO DATE    T                                         0.0
  SINCE OCT 1     11.2                                        T
  SINCE JUL 1     11.2                                        T
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       16                        17     -1       17
  MONTH TO DATE  464                       454     10      383
  SINCE MAR 1    464                       454     10      383
  SINCE JUL 1   3637                      3708    -71     3227

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


WIND (MPH)
  RESULTANT WIND SPEED   9   RESULTANT WIND DIRECTION   S (190)
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    28   HIGHEST GUST DIRECTION    SW (220)
  AVERAGE WIND SPEED    10.9


SKY COVER
  AVERAGE SKY COVER 0.9


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          1200 AM
 LOWEST     66          1200 PM
 AVERAGE    83

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   55        64      1969
                                             1966
                                             1960
 MINIMUM TEMPERATURE (F)   40        31      1954


SUNRISE AND SUNSET
MARCH 25 2017.........SUNRISE   701 AM PDT   SUNSET   730 PM PDT
MARCH 26 2017.........SUNRISE   659 AM PDT   SUNSET   731 PM PDT


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




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