Climatological Report (Daily)
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000
CDUS46 KSEW 220832
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
132 AM PDT SUN APR 22 2018


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR APRIL 21 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         56    530 PM  76    1982  59     -3       66
  MINIMUM         45    549 AM  29    1951  43      2       43
  AVERAGE         51                        51      0       55

PRECIPITATION (IN)
  YESTERDAY        0.03          0.87 2010   0.09  -0.06     0.00
  MONTH TO DATE    5.37                      2.03   3.34     3.28
  SINCE OCT 1     36.95                     30.22   6.73    44.07
  SINCE JAN 1     18.09                     14.82   3.27    23.67

SNOWFALL (IN)
  YESTERDAY        0.0          MM      MM                   0.0
  MONTH TO DATE    0.0                                       0.0
  SINCE OCT 1      4.0                                      11.2
  SINCE JUL 1      4.0                                      11.2
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       14                        14      0       10
  MONTH TO DATE  331                       322      9      302
  SINCE MAR 1    903                       896      7      882
  SINCE JUL 1   3936                      4150   -214     4055

 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   5   RESULTANT WIND DIRECTION   S (190)
  HIGHEST WIND SPEED    24   HIGHEST WIND DIRECTION     S (190)
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION    SW (210)
  AVERAGE WIND SPEED    12.3


SKY COVER
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    82           400 AM
 LOWEST     50           600 PM
 AVERAGE    66

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   60        78      2005
                                             1977
 MINIMUM TEMPERATURE (F)   43        35      1972
                                             1964
                                             1950


SUNRISE AND SUNSET
APRIL 22 2018.........SUNRISE   608 AM PDT   SUNSET   809 PM PDT
APRIL 23 2018.........SUNRISE   606 AM PDT   SUNSET   810 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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