MATTAWA, WASHINGTON

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

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DAILY WEATHER AVERAGE - 10 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	-0.1 ^°C	4.7 ^°C	-3.4 ^°C	35.6 ^°C (2008)	-17.7 ^°C (2009)
Dewpoint	-1.5 ^°C	1.3 ^°C	-5.2 ^°C	32.3 ^°C (2008)	-20.9 ^°C (2009)
Humidity	85.6 ^%	95.9 ^%	70.2 ^%		38 ^% (2009)
Barometer	1020.7 ^hPa	1024.7 ^hPa	1017.3 ^hPa	1042.3 ^hPa (1997)	989.5 ^hPa (1996)
Wind Speed	9.3 ^km/h	19 ^km/h		40.7 ^km/h (2002)
Wind Gust		53.1 ^km/h		57.5 ^km/h (2002)
Precipitation	---			--- ()

Weather Element	Average
Visibility	18.7 ^km
Wind Direction	SSW (217.8 °)

Weather Element	Total
Heating Degree Days	17.7 (Base 18.3)
Growing Degree Days	7.7 (Base 10)

Total Years on Record: 18

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