Climatological Report (Daily)
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000
CDUS46 KSEW 180826
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
126 AM PDT THU SEP 18 2014


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 17 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         73    128 PM  85    1991  70      3       64
  MINIMUM         58    614 AM  42    1965  52      6       57
  AVERAGE         66                        61      5       61

PRECIPITATION (IN)
  YESTERDAY        0.02          1.49 2010   0.04  -0.02      T
  MONTH TO DATE    0.14                      0.73  -0.59     2.17
  SINCE OCT 1     37.02                     36.72   0.30    43.41
  SINCE JAN 1     30.03                     21.32   8.71    21.57

DEGREE DAYS
 HEATING
  YESTERDAY        0                         4     -4        4
  MONTH TO DATE   11                        51    -40       10
  SINCE SEP 1     11                        51    -40       10
  SINCE JUL 1     34                       136   -102       25

 COOLING
  YESTERDAY        1                         1      0        0
  MONTH TO DATE   36                        17     19       55
  SINCE SEP 1     36                        17     19       55
  SINCE JAN 1    359                       185    174      385
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   3   RESULTANT WIND DIRECTION   N (340)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     N (350)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     N (350)
  AVERAGE WIND SPEED     5.1


SKY COVER
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    84           300 AM
 LOWEST     57           200 PM
 AVERAGE    71

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   70        85      1991
 MINIMUM TEMPERATURE (F)   52        41      1955
                                             1948


SUNRISE AND SUNSET
SEPTEMBER 18 2014.....SUNRISE   651 AM PDT   SUNSET   715 PM PDT
SEPTEMBER 19 2014.....SUNRISE   652 AM PDT   SUNSET   713 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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