Climatological Report (Daily)
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726
CDUS46 KSEW 290830
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
130 AM PDT THU JUN 29 2017


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JUNE 28 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         68    458 PM  91    2008  72     -4       76
                                      1995
  MINIMUM         54    347 AM  45    1954  54      0       54
                                      1949
  AVERAGE         61                        63     -2       65

PRECIPITATION (IN)
  YESTERDAY        0.00          0.79 2002   0.04  -0.04     0.00
  MONTH TO DATE    1.52                      1.50   0.02     1.77
  SINCE OCT 1     48.80                     34.34  14.46    47.23
  SINCE JAN 1     28.40                     18.94   9.46    22.84

DEGREE DAYS
 HEATING
  YESTERDAY        4                         3      1        0
  MONTH TO DATE   99                       138    -39       89
  SINCE JUN 1     99                       138    -39       89
  SINCE JUL 1   4506                      4691   -185     3832

 COOLING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE   35                        16     19       54
  SINCE JUN 1     35                        16     19       54
  SINCE JAN 1     54                        22     32       80
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   8   RESULTANT WIND DIRECTION  SW (220)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION    SW (230)
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION    SW (230)
  AVERAGE WIND SPEED     8.4


SKY COVER
  AVERAGE SKY COVER 0.7


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86           100 AM
 LOWEST     58           300 PM
 AVERAGE    72

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   73        93      1987
 MINIMUM TEMPERATURE (F)   54        45      1949


SUNRISE AND SUNSET
JUNE 29 2017..........SUNRISE   515 AM PDT   SUNSET   910 PM PDT
JUNE 30 2017..........SUNRISE   516 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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