SEA-TAC, WASHINGTON

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Elevation: 137 meters Latitude: 47 27N Longitude: 122 18W

WEATHER

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DAILY WEATHER AVERAGE - 22 JANUARY

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	5.7 ^°C	8.4 ^°C	3.3 ^°C	15 ^°C (1995)	-3.9 ^°C (2008)
Dewpoint	2.6 ^°C	4.3 ^°C	0.4 ^°C	11.1 ^°C (2005)	-13.3 ^°C (1995)
Humidity	82 ^%	92.6 ^%	67.2 ^%		29 ^% (1995)
Barometer	1017.9 ^hPa	1021.3 ^hPa	1014.2 ^hPa	1035.2 ^hPa (2006)	985.4 ^hPa (2010)
Wind Speed	11.4 ^km/h	20.6 ^km/h		33.3 ^km/h (2003)
Wind Gust		41.4 ^km/h		50.1 ^km/h (2003)
Precipitation	6.35 ^mm			23.37 ^mm (2003)

Weather Element	Average
Visibility	14.5 ^km
Wind Direction	SE (131.4 °)

Weather Element	Total
Heating Degree Days	12.5 (Base 18.3)
Growing Degree Days	1.1 (Base 10)

Total Years on Record: 22

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