CHESTERFIELD, MISSOURI

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Elevation: 559 feet Latitude: 38 41N Longitude: 090 31W

WEATHER

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DAILY WEATHER AVERAGE - SEPTEMBER 2

[ °C ] °F

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	77.2 ^°F	86.6 ^°F	68.5 ^°F	100.9 ^°F (2011)	55.9 ^°F (2009)
Dewpoint	64.2 ^°F	67 ^°F	61.3 ^°F	77 ^°F (2000)	46.9 ^°F (2007)
Humidity	67.3 ^%	86.8 ^%	46.6 ^%		23 ^% (2007)
Barometer	29.99 ⁱⁿ	30.05 ⁱⁿ	29.94 ⁱⁿ	30.24 ⁱⁿ (2009)	29.74 ⁱⁿ (2012)
Wind Speed	6.3 ^mph	12.7 ^mph		26.5 ^mph (1997)
Wind Gust		22.3 ^mph		35.7 ^mph (1997)
Precipitation	1.10 ⁱⁿ			2.68 ⁱⁿ (1997)

Weather Element	Average
Visibility	8.9 ^mi
Wind Direction	SE (136.5 °)

Weather Element	Total
Cooling Degree Days	12.5 (Base 18.3)
Growing Degree Days	27.5 (Base 10)

Total Years on Record: 21

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