Climatological Report (Daily)
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000
CDUS46 KSEW 210830
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
130 AM PDT SUN SEP 21 2014


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 20 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1945 TO 2014


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         76    313 PM  88    1974  69      7       74
  MINIMUM         58    531 AM  40    1949  51      7       56
  AVERAGE         67                        60      7       65

PRECIPITATION (IN)
  YESTERDAY        0.00          1.05 1972   0.06  -0.06     0.14
  MONTH TO DATE    0.15                      0.89  -0.74     2.31
  SINCE OCT 1     37.03                     36.88   0.15    43.55
  SINCE JAN 1     30.04                     21.48   8.56    21.71

DEGREE DAYS
 HEATING
  YESTERDAY        0                         5     -5        0
  MONTH TO DATE   13                        66    -53       13
  SINCE SEP 1     13                        66    -53       13
  SINCE JUL 1     36                       151   -115       28

 COOLING
  YESTERDAY        2                         0      2        0
  MONTH TO DATE   41                        19     22       55
  SINCE SEP 1     41                        19     22       55
  SINCE JAN 1    364                       187    177      385
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED  10   RESULTANT WIND DIRECTION   N (0)
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     N (10)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION     N (360)
  AVERAGE WIND SPEED     9.9


SKY COVER
  AVERAGE SKY COVER 0.3


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    87           500 AM
 LOWEST     50           300 PM
 AVERAGE    69

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   69        88      1974
                                             1952
 MINIMUM TEMPERATURE (F)   51        39      1960
                                             1955


SUNRISE AND SUNSET
SEPTEMBER 21 2014.....SUNRISE   655 AM PDT   SUNSET   709 PM PDT
SEPTEMBER 22 2014.....SUNRISE   656 AM PDT   SUNSET   707 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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