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United States of America

ST. HELENA, CALIFORNIA


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Elevation: 170 feet     Latitude: 38 26N     Longitude: 122 25W

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DAILY WEATHER AVERAGE - AUGUST 30
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[ °C ]   °F
Weather ElementAvgAvg HighAvg LowRecord HighRecord Low
Temperature 62.1 °F 80 °F 50 °F 82.4 °F (2012) 44.6 °F (2012)
Dewpoint 53.3 °F 57.8 °F 46.4 °F 60.8 °F (2015) 41 °F (2012)
Humidity 76.5 % 100 % 43 % 37 % (2012)
Barometer 29.87 in 29.92 in 29.82 in 30.07 in (2015) 29.74 in (2011)
Wind Speed 5.3 mph 15 mph 20.7 mph (2015)
Wind Gust 20.7 mph 25.3 mph (2015)
Precipitation --- --- ()
Weather ElementAverage
Visibility8.5 mi
Wind DirectionSSW (189.9 °)
Weather ElementTotal
Heating Degree Days2.4 (Base 18.3)
Cooling Degree Days4.8 (Base 18.3)
Growing Degree Days15 (Base 10)
Total Years on Record: 3
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