ST. HELENA, CALIFORNIA

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

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DAILY WEATHER AVERAGE - 22 JULY

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	18.4 ^°C	26.4 ^°C	12 ^°C	30 ^°C (2012)	9 ^°C (2012)
Dewpoint	13.1 ^°C	14.8 ^°C	11 ^°C	16 ^°C (2011)	9 ^°C (2012)
Humidity	74.4 ^%	98.8 ^%	44.6 ^%		35 ^% (2012)
Barometer	1013.5 ^hPa	1014.6 ^hPa	1012.2 ^hPa	1020.3 ^hPa (2014)	1009.1 ^hPa (2011)
Wind Speed	10.1 ^km/h	21.9 ^km/h		25.9 ^km/h (2014)
Wind Gust		30.4 ^km/h		37 ^km/h (2014)
Precipitation	0.25 ^mm			0.25 ^mm (2014)

Weather Element	Average
Visibility	13.2 ^km
Wind Direction	WSW (254.2 °)

Weather Element	Total
Cooling Degree Days	0.9 (Base 18.3)
Growing Degree Days	9.2 (Base 10)

Total Years on Record: 5

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