SEA-TAC, WASHINGTON

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

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DAILY WEATHER AVERAGE - 20 NOVEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	6.5 ^°C	9.7 ^°C	3.9 ^°C	16.7 ^°C (2002)	-3 ^°C (2011)
Dewpoint	3.2 ^°C	5.3 ^°C	0.8 ^°C	12.2 ^°C (2002)	-6.7 ^°C (2000)
Humidity	81.6 ^%	94.7 ^%	62.9 ^%		36 ^% (2000)
Barometer	1017.3 ^hPa	1021.3 ^hPa	1012.9 ^hPa	1035.2 ^hPa (2015)	995.3 ^hPa (1998)
Wind Speed	14 ^km/h	25.9 ^km/h		50.1 ^km/h (1998)
Wind Gust		49.9 ^km/h		64.9 ^km/h (1998)
Precipitation	12.19 ^mm			51.56 ^mm (1998)

Weather Element	Average
Visibility	13.8 ^km
Wind Direction	SE (136.9 °)

Weather Element	Total
Heating Degree Days	11.6 (Base 18.3)
Growing Degree Days	0.8 (Base 10)

Total Years on Record: 21

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