Climatological Report (Daily)
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000
CDUS46 KSEW 280836
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
136 AM PDT WED JUN 28 2017


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JUNE 27 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         71    422 PM  92    2015  72     -1       85
  MINIMUM         53    156 AM  45    1949  53      0       58
  AVERAGE         62                        63     -1       72

PRECIPITATION (IN)
  YESTERDAY        0.00          0.61 2001   0.04  -0.04     0.00
  MONTH TO DATE    1.52                      1.46   0.06     1.77
  SINCE OCT 1     48.80                     34.30  14.50    47.23
  SINCE JAN 1     28.40                     18.90   9.50    22.84

DEGREE DAYS
 HEATING
  YESTERDAY        3                         3      0        0
  MONTH TO DATE   95                       135    -40       89
  SINCE JUN 1     95                       135    -40       89
  SINCE JUL 1   4502                      4688   -186     3832

 COOLING
  YESTERDAY        0                         1     -1        7
  MONTH TO DATE   35                        15     20       54
  SINCE JUN 1     35                        15     20       54
  SINCE JAN 1     54                        21     33       80
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   5   RESULTANT WIND DIRECTION   S (200)
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION     W (250)
  HIGHEST GUST SPEED    15   HIGHEST GUST DIRECTION    SW (220)
  AVERAGE WIND SPEED     6.3


SKY COVER
  AVERAGE SKY COVER 0.7


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    89           100 AM
 LOWEST     47           700 PM
 AVERAGE    68

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   72        91      2008
                                             1995
 MINIMUM TEMPERATURE (F)   54        45      1954
                                             1949


SUNRISE AND SUNSET
JUNE 28 2017..........SUNRISE   515 AM PDT   SUNSET   910 PM PDT
JUNE 29 2017..........SUNRISE   515 AM PDT   SUNSET   910 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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