ST. HELENA, CALIFORNIA

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

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DAILY WEATHER AVERAGE - 22 JANUARY

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	9 ^°C	15 ^°C	3.4 ^°C	23 ^°C (2014)	-1 ^°C (2014)
Dewpoint	5.9 ^°C	8.8 ^°C	2.2 ^°C	14 ^°C (2016)	-4 ^°C (2014)
Humidity	84.8 ^%	100 ^%	64 ^%		18 ^% (2012)
Barometer	1019.3 ^hPa	1022.4 ^hPa	1015.6 ^hPa	1028.8 ^hPa (2015)	1010.2 ^hPa (2012)
Wind Speed	9 ^km/h	19.6 ^km/h		24.1 ^km/h (2012)
Wind Gust		36.5 ^km/h		38.9 ^km/h (2012)
Precipitation	17.27 ^mm			28.45 ^mm (2012)

Weather Element	Average
Visibility	12.2 ^km
Wind Direction	ESE (116.7 °)

Weather Element	Total
Heating Degree Days	9.1 (Base 18.3)
Growing Degree Days	1.8 (Base 10)

Total Years on Record: 5

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