Climatological Report (Daily)
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000
CDUS46 KSEW 300833
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
133 AM PDT SUN APR 30 2017


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR APRIL 29 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         57    425 PM  80    1976  61     -4       61
  MINIMUM         42    516 AM  31    1952  44     -2       48
  AVERAGE         50                        53     -3       55

PRECIPITATION (IN)
  YESTERDAY        0.14          1.06 1959   0.07   0.07     0.01
  MONTH TO DATE    4.13                      2.64   1.49     1.19
  SINCE OCT 1     44.92                     30.83  14.09    44.52
  SINCE JAN 1     24.52                     15.43   9.09    20.13

SNOWFALL (IN)
  YESTERDAY        0.0           T    1954                   0.0
  MONTH TO DATE    0.0                                       0.0
  SINCE OCT 1     11.2                                        T
  SINCE JUL 1     11.2                                        T
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       15                        12      3       10
  MONTH TO DATE  411                       427    -16      246
  SINCE MAR 1    991                      1001    -10      723
  SINCE JUL 1   4164                      4255    -91     3567

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0       14
  SINCE MAR 1      0                         0      0       14
  SINCE JAN 1      0                         0      0       14
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   5   RESULTANT WIND DIRECTION   S (170)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION    SW (240)
  AVERAGE WIND SPEED     6.6


SKY COVER
  AVERAGE SKY COVER 0.9


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           900 PM
 LOWEST     55           400 PM
 AVERAGE    78

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   61        85      1976
 MINIMUM TEMPERATURE (F)   44        32      1954


SUNRISE AND SUNSET
APRIL 30 2017.........SUNRISE   554 AM PDT   SUNSET   820 PM PDT
MAY  1 2017...........SUNRISE   552 AM PDT   SUNSET   821 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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