ST. HELENA, CALIFORNIA

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

WEATHER

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DAILY WEATHER AVERAGE - 23 APRIL

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	13.2 ^°C	19.6 ^°C	7.2 ^°C	26 ^°C (2013)	4 ^°C (2014)
Dewpoint	7.4 ^°C	11.4 ^°C	3.2 ^°C	13 ^°C (2011)	-6 ^°C (2013)
Humidity	73.4 ^%	98.8 ^%	46.8 ^%		15 ^% (2011)
Barometer	1014.9 ^hPa	1016.3 ^hPa	1013.5 ^hPa	1021.7 ^hPa (2014)	1010.2 ^hPa (2015)
Wind Speed	9.5 ^km/h	25.9 ^km/h		35.2 ^km/h (2013)
Wind Gust		40.7 ^km/h		51.8 ^km/h (2013)
Precipitation	0.76 ^mm			0.76 ^mm (2011)

Weather Element	Average
Visibility	14.8 ^km
Wind Direction	SSW (207.2 °)

Weather Element	Total
Heating Degree Days	4.9 (Base 18.3)
Growing Degree Days	3.4 (Base 10)

Total Years on Record: 5

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