Climatological Report (Daily)
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209
CDUS46 KSEW 280119
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
619 PM PDT THU JUL 27 2017


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JULY 27 2017...
VALID TODAY AS OF 0600 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         70    457 PM  95    1998  77     -7       84
                                      1958
  MINIMUM         57    702 AM  46    1956  57      0       56
  AVERAGE         64                        67     -3       70

PRECIPITATION (IN)
  TODAY            T             0.30 1983   0.01  -0.01     0.00
  MONTH TO DATE    T                         0.63  -0.63     0.72
  SINCE OCT 1     48.80                     35.04  13.76    47.95
  SINCE JAN 1     28.40                     19.64   8.76    23.56

DEGREE DAYS
 HEATING
  TODAY            1                         1      0        0
  MONTH TO DATE    6                        45    -39       10
  SINCE JUN 1    105                       189    -84      101
  SINCE JUL 1      6                        45    -39       10

 COOLING
  TODAY            0                         3     -3        5
  MONTH TO DATE   69                        61      8       53
  SINCE JUN 1    112                        82     30      107
  SINCE JAN 1    131                        88     43      133
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   6   RESULTANT WIND DIRECTION  SW (220)
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION     W (250)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION     W (250)
  AVERAGE WIND SPEED     6.8


SKY COVER
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           200 AM
 LOWEST     57           400 PM
 AVERAGE    75

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   77        97      2009
                                             1998
                                             1958
 MINIMUM TEMPERATURE (F)   57        47      1953


SUNRISE AND SUNSET
JULY 27 2017..........SUNRISE   541 AM PDT   SUNSET   849 PM PDT
JULY 28 2017..........SUNRISE   543 AM PDT   SUNSET   848 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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