ST. LOUIS - GATEWAY ARCH, MISSOURI

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

WEATHER

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DAILY WEATHER AVERAGE - 30 JULY

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	25.3 ^°C	30.6 ^°C	19.8 ^°C	38.9 ^°C (1999)	13.9 ^°C (2014)
Dewpoint	19.8 ^°C	21.7 ^°C	17.7 ^°C	26.7 ^°C (2001)	11 ^°C (2015)
Humidity	74.3 ^%	94.7 ^%	53.3 ^%		26 ^% (2002)
Barometer	1015.6 ^hPa	1017.3 ^hPa	1013.9 ^hPa	1025.4 ^hPa (1997)	1005.8 ^hPa (1999)
Wind Speed	8.2 ^km/h	18.8 ^km/h		29.6 ^km/h (1997)
Wind Gust		39.3 ^km/h		46.3 ^km/h (2011)
Precipitation	78.74 ^mm			220.47 ^mm (1998)

Weather Element	Average
Visibility	13 ^km
Wind Direction	ESE (98 °)

Weather Element	Total
Cooling Degree Days	6.9 (Base 18.3)
Growing Degree Days	15.2 (Base 10)

Total Years on Record: 20

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