ST. CHARLES COUNTY SMARTT AIRPORT, MISSOURI

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Elevation: 133 meters Latitude: 38 56N Longitude: 090 26W

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DAILY WEATHER AVERAGE - 4 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	3.9 ^°C	8.6 ^°C	-0.6 ^°C	21.1 ^°C (2001)	-11.7 ^°C (2006)
Dewpoint	0.7 ^°C	4.1 ^°C	-3.3 ^°C	16.1 ^°C (2001)	-14.4 ^°C (2004)
Humidity	80.7 ^%	94.2 ^%	60.7 ^%		39 ^% (2004)
Barometer	1021.3 ^hPa	1025.4 ^hPa	1016.9 ^hPa	1037.6 ^hPa (2006)	999 ^hPa (2013)
Wind Speed	13 ^km/h	24.5 ^km/h		38.9 ^km/h (2013)
Wind Gust		39.4 ^km/h		50.1 ^km/h (2010)
Precipitation	14.22 ^mm			60.71 ^mm (1999)

Weather Element	Average
Visibility	12.1 ^km
Wind Direction	S (174.6 °)

Weather Element	Total
Heating Degree Days	14.4 (Base 18.3)
Growing Degree Days	4.3 (Base 10)

Total Years on Record: 18

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