ST. LOUIS - GATEWAY ARCH, MISSOURI

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Elevation: 450 feet Latitude: 38 37N Longitude: 090 11W

WEATHER

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DAILY WEATHER AVERAGE - DECEMBER 12

[ °C ] °F

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	36.2 ^°F	42.4 ^°F	29.3 ^°F	72 ^°F (2015)	7 ^°F (2013)
Dewpoint	29.9 ^°F	34 ^°F	24.5 ^°F	62.1 ^°F (2015)	1 ^°F (2012)
Humidity	79 ^%	90.4 ^%	63.6 ^%		38 ^% (2012)
Barometer	30.17 ⁱⁿ	30.28 ⁱⁿ	30.07 ⁱⁿ	30.66 ⁱⁿ (2013)	29.63 ⁱⁿ (2010)
Wind Speed	6.7 ^mph	12.9 ^mph		29.9 ^mph (2010)
Wind Gust		28.6 ^mph		38 ^mph (2010)
Precipitation	0.67 ⁱⁿ			1.46 ⁱⁿ (2001)

Weather Element	Average
Visibility	7.7 ^mi
Wind Direction	SSE (153.5 °)

Weather Element	Total
Heating Degree Days	29.1 (Base 18.3)
Growing Degree Days	6.3 (Base 10)

Total Years on Record: 21

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