CHESTERFIELD, MISSOURI

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Elevation: 170 meters Latitude: 38 41N Longitude: 090 31W

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DAILY WEATHER AVERAGE - 20 SEPTEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	20.2 ^°C	25.3 ^°C	15.4 ^°C	31.7 ^°C (2010)	7.2 ^°C (2006)
Dewpoint	14.5 ^°C	17.2 ^°C	11.7 ^°C	22.2 ^°C (2002)	1.7 ^°C (2012)
Humidity	72.4 ^%	90.8 ^%	50.6 ^%		21 ^% (2012)
Barometer	1016.3 ^hPa	1018.6 ^hPa	1013.2 ^hPa	1024.4 ^hPa (2003)	1002.4 ^hPa (2002)
Wind Speed	10.6 ^km/h	21.2 ^km/h		33.3 ^km/h (2000)
Wind Gust		37.2 ^km/h		44.4 ^km/h (2000)
Precipitation	16 ^mm			68.58 ^mm (2009)

Weather Element	Average
Visibility	13.7 ^km
Wind Direction	S (177.7 °)

Total Years on Record: 21

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