MARIETTA-ALDERWOOD, WASHINGTON

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Elevation: 45 meters Latitude: 48 48N Longitude: 122 31W

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DAILY WEATHER AVERAGE - 20 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	4.2 ^°C	7.1 ^°C	1.6 ^°C	13.3 ^°C (2014)	-11.1 ^°C (2008)
Dewpoint	0.2 ^°C	2.8 ^°C	-2.2 ^°C	9.4 ^°C (2009)	-22.8 ^°C (1998)
Humidity	77.1 ^%	91 ^%	61 ^%		25 ^% (1998)
Barometer	1015.2 ^hPa	1020.3 ^hPa	1010.8 ^hPa	1040.3 ^hPa (1998)	994.6 ^hPa (2014)
Wind Speed	14.6 ^km/h	27 ^km/h		51.8 ^km/h (2015)
Wind Gust		51.5 ^km/h		81.4 ^km/h (2015)
Precipitation	4.57 ^mm			16.26 ^mm (2013)

Weather Element	Average
Visibility	16.7 ^km
Wind Direction	ESE (112.6 °)

Weather Element	Total
Heating Degree Days	14 (Base 18.3)

Total Years on Record: 20

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