SEA-TAC, WASHINGTON

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Elevation: 450 feet Latitude: 47 27N Longitude: 122 18W

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DAILY WEATHER AVERAGE - OCTOBER 9

[ °C ] °F

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	53.6 ^°F	59.8 ^°F	48.9 ^°F	79 ^°F (1996)	39.9 ^°F (2008)
Dewpoint	47.9 ^°F	50.5 ^°F	44.1 ^°F	61 ^°F (2010)	28.9 ^°F (2009)
Humidity	82.3 ^%	95.1 ^%	63 ^%		32 ^% (2009)
Barometer	30.05 ⁱⁿ	30.11 ⁱⁿ	29.96 ⁱⁿ	30.43 ⁱⁿ (2006)	29.40 ⁱⁿ (1997)
Wind Speed	6.3 ^mph	11.4 ^mph		24.2 ^mph (1997)
Wind Gust		29.9 ^mph		41.4 ^mph (1997)
Precipitation	0.29 ⁱⁿ			1.49 ⁱⁿ (2010)

Weather Element	Average
Visibility	8.6 ^mi
Wind Direction	SSE (141.5 °)

Weather Element	Total
Heating Degree Days	10.7 (Base 18.3)
Growing Degree Days	5.1 (Base 10)

Total Years on Record: 21

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