ST. LOUIS - GATEWAY ARCH, MISSOURI

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Elevation: 137 meters Latitude: 38 37N Longitude: 090 11W

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DAILY WEATHER AVERAGE - 20 JULY

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	25.8 ^°C	31.7 ^°C	21 ^°C	36.1 ^°C (2011)	13 ^°C (2009)
Dewpoint	20.8 ^°C	23.1 ^°C	18.9 ^°C	26.1 ^°C (2010)	12.2 ^°C (2013)
Humidity	76 ^%	93.6 ^%	52.9 ^%		38 ^% (2008)
Barometer	1014.9 ^hPa	1016.3 ^hPa	1012.9 ^hPa	1021 ^hPa (2007)	1008.5 ^hPa (2015)
Wind Speed	8.4 ^km/h	17.9 ^km/h		31.5 ^km/h (2010)
Wind Gust		35.6 ^km/h		44.4 ^km/h (2010)
Precipitation	22.61 ^mm			111.25 ^mm (2010)

Weather Element	Average
Visibility	12.7 ^km
Wind Direction	ESE (112.4 °)

Weather Element	Total
Cooling Degree Days	8 (Base 18.3)
Growing Degree Days	16.3 (Base 10)

Total Years on Record: 21

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