Climatological Report (Daily)
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000
CDUS46 KSEW 310830
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
130 AM PDT MON AUG 31 2015


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 30 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1945 TO 2015


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         68    440 PM  88    1987  75     -7       64
  MINIMUM         55    635 AM  45    1950  55      0       59
  AVERAGE         62                        65     -3       62

PRECIPITATION (IN)
  YESTERDAY        0.40R         0.37 1975   0.04   0.36     0.33
  MONTH TO DATE    3.28                      0.84   2.44     1.76
  SINCE OCT 1     35.99                     35.95   0.04    36.83
  SINCE JAN 1     19.61                     20.55  -0.94    29.84

DEGREE DAYS
 HEATING
  YESTERDAY        3                         2      1        3
  MONTH TO DATE    9                        33    -24        8
  SINCE JUN 1     40                       226   -186      116
  SINCE JUL 1     11                        82    -71       22

 COOLING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE  132                        73     59      145
  SINCE JUN 1    453                       165    288      308
  SINCE JAN 1    460                       171    289      323
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED  10   RESULTANT WIND DIRECTION   S (200)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION     S (200)
  AVERAGE WIND SPEED    10.5


SKY COVER
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  HEAVY RAIN
  RAIN
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93          1200 AM
 LOWEST     58           200 PM
 AVERAGE    76

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   74        92      1987
 MINIMUM TEMPERATURE (F)   55        46      1950


SUNRISE AND SUNSET
AUGUST 31 2015........SUNRISE   626 AM PDT   SUNSET   752 PM PDT
SEPTEMBER  1 2015.....SUNRISE   628 AM PDT   SUNSET   750 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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