SUNNYSIDE, WASHINGTON

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Elevation: 738 feet Latitude: 46 19N Longitude: 120 00W

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DAILY WEATHER AVERAGE - DECEMBER 18

[ °C ] °F

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	31.4 ^°F	36.5 ^°F	25.7 ^°F	55.4 ^°F (1999)	8.4 ^°F (2005)
Dewpoint	25.6 ^°F	29.1 ^°F	21.1 ^°F	39 ^°F (1997)	1.9 ^°F (1998)
Humidity	81.3 ^%	91.4 ^%	67.4 ^%		34 ^% (1998)
Barometer	30.20 ⁱⁿ	30.33 ⁱⁿ	30.08 ⁱⁿ	30.71 ⁱⁿ (2000)	29.58 ⁱⁿ (2010)
Wind Speed	6.8 ^mph	11.6 ^mph		25.3 ^mph (1999)
Wind Gust		34.5 ^mph		34.5 ^mph (1999)
Precipitation	---			--- ()

Weather Element	Average
Visibility	11.5 ^mi
Wind Direction	WSW (240.3 °)

Weather Element	Total
Heating Degree Days	34 (Base 18.3)
Growing Degree Days	2.3 (Base 10)

Total Years on Record: 18

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