CHESTERFIELD, MISSOURI

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

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DAILY WEATHER AVERAGE - 29 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	1.9 ^°C	6.1 ^°C	-2.4 ^°C	16.1 ^°C (2011)	-9.4 ^°C (2000)
Dewpoint	-2.9 ^°C	0.6 ^°C	-6.5 ^°C	9.4 ^°C (2004)	-18.9 ^°C (2008)
Humidity	72 ^%	86.3 ^%	56 ^%		33 ^% (2008)
Barometer	1018.6 ^hPa	1023.4 ^hPa	1014.2 ^hPa	1034.5 ^hPa (2009)	1003 ^hPa (1997)
Wind Speed	15.6 ^km/h	27.4 ^km/h		40.7 ^km/h (1998)
Wind Gust		40.9 ^km/h		53.8 ^km/h (1998)
Precipitation	1.52 ^mm			2.79 ^mm (1997)

Weather Element	Average
Visibility	13.4 ^km
Wind Direction	SSW (214.2 °)

Weather Element	Total
Heating Degree Days	16.5 (Base 18.3)
Growing Degree Days	1.2 (Base 10)

Total Years on Record: 21

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