ST. HELENA, CALIFORNIA

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Elevation: 52 meters Latitude: 38 26N Longitude: 122 25W

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DAILY WEATHER AVERAGE - 25 AUGUST

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	17.1 ^°C	24.8 ^°C	4.8 ^°C	28 ^°C (2011)	(2015)
Dewpoint	12.5 ^°C	14 ^°C	11.7 ^°C	17 ^°C (2011)	10 ^°C (2015)
Humidity	76.8 ^%	97 ^%	49 ^%		42 ^% (2011)
Barometer	1013.2 ^hPa	1014.9 ^hPa	1011.9 ^hPa	1017.6 ^hPa (2015)	1009.8 ^hPa (2012)
Wind Speed	10.6 ^km/h	20.9 ^km/h		25.9 ^km/h (2015)
Wind Gust		29.3 ^km/h		31.5 ^km/h (2015)
Precipitation	2.03 ^mm			2.03 ^mm (2015)

Weather Element	Average
Visibility	14.3 ^km
Wind Direction	WSW (259.5 °)

Total Years on Record: 4

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