ST. HELENA, CALIFORNIA

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

WEATHER

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DAILY WEATHER AVERAGE - 20 NOVEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	12 ^°C	16.4 ^°C	8.6 ^°C	23 ^°C (2015)	4 ^°C (2011)
Dewpoint	11.1 ^°C	13.2 ^°C	8.2 ^°C	15 ^°C (2012)	4 ^°C (2015)
Humidity	95.4 ^%	100 ^%	78.2 ^%		44 ^% (2011)
Barometer	1015.9 ^hPa	1019 ^hPa	1013.2 ^hPa	1021.3 ^hPa (2012)	1005.4 ^hPa (2011)
Wind Speed	6.4 ^km/h	18.2 ^km/h		22.2 ^km/h (2011)
Wind Gust		29 ^km/h		33.3 ^km/h (2011)
Precipitation	16.76 ^mm			25.65 ^mm (2014)

Weather Element	Average
Visibility	11.7 ^km
Wind Direction	ESE (119.9 °)

Weather Element	Total
Heating Degree Days	5.8 (Base 18.3)
Growing Degree Days	3.5 (Base 10)

Total Years on Record: 5

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