MATTAWA, WASHINGTON

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Elevation: 276 meters Latitude: 46 50N Longitude: 119 40W

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DAILY WEATHER AVERAGE - 11 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	-0.2 ^°C	2.6 ^°C	-3 ^°C	11.8 ^°C (1999)	-18.1 ^°C (2009)
Dewpoint	-2.6 ^°C	-0.8 ^°C	-4.9 ^°C	5 ^°C (2002)	-20.2 ^°C (2004)
Humidity	85.1 ^%	94.6 ^%	71.9 ^%		40 ^% (2004)
Barometer	1020.7 ^hPa	1023.4 ^hPa	1017.6 ^hPa	1042.7 ^hPa (1997)	1000.7 ^hPa (1995)
Wind Speed	10.3 ^km/h	17.1 ^km/h		31.5 ^km/h (2006)
Precipitation	0.25 ^mm			0.25 ^mm (2012)

Weather Element	Average
Visibility	18.2 ^km
Wind Direction	SW (225.7 °)

Weather Element	Total
Heating Degree Days	18.6 (Base 18.3)
Growing Degree Days	0.2 (Base 10)

Total Years on Record: 18

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