Climatological Report (Daily)
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000
CDUS46 KSEW 230831
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
130 AM PDT TUE MAY 23 2017


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 22 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         83    356 PM  86    1969  66     17       66
  MINIMUM         56    420 AM  37    1960  49      7       52
  AVERAGE         70                        57     13       59

PRECIPITATION (IN)
  YESTERDAY        0.00          0.67 1984   0.06  -0.06     0.00
  MONTH TO DATE    2.16                      1.37   0.79     0.84
  SINCE OCT 1     47.16                     32.27  14.89    45.36
  SINCE JAN 1     26.76                     16.87   9.89    20.97

DEGREE DAYS
 HEATING
  YESTERDAY        0                         8     -8        6
  MONTH TO DATE  199                       218    -19      115
  SINCE MAR 1   1203                      1232    -29      847
  SINCE JUL 1   4376                      4486   -110     3691

 COOLING
  YESTERDAY        5                         0      5        0
  MONTH TO DATE    5                         0      5       11
  SINCE MAR 1      5                         0      5       25
  SINCE JAN 1      5                         0      5       25
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   6   RESULTANT WIND DIRECTION   N (0)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     N (340)
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION     N (350)
  AVERAGE WIND SPEED     7.9


SKY COVER
  AVERAGE SKY COVER 0.4


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    77           400 AM
 LOWEST     33           400 PM
 AVERAGE    55

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   66        90      1969
 MINIMUM TEMPERATURE (F)   49        37      1980
                                             1950


SUNRISE AND SUNSET
MAY 23 2017...........SUNRISE   523 AM PDT   SUNSET   850 PM PDT
MAY 24 2017...........SUNRISE   522 AM PDT   SUNSET   851 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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