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United States of America

ST. HELENA, CALIFORNIA


Home > North America > United States > California
Elevation: 170 feet     Latitude: 38 26N     Longitude: 122 25W

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DAILY WEATHER AVERAGE - SEPTEMBER 24
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[ °C ]   °F
Weather ElementAvgAvg HighAvg LowRecord HighRecord Low
Temperature 63.2 °F 77.7 °F 54.3 °F 93.2 °F (2015) 48.2 °F (2012)
Dewpoint 53.8 °F 57.2 °F 50 °F 64.4 °F (2014) 41 °F (2015)
Humidity 76 % 96.4 % 47 % 17 % (2012)
Barometer 29.94 in 29.99 in 29.89 in 30.01 in (2015) 29.88 in (2015)
Wind Speed 6.7 mph 16.1 mph 24.2 mph (2013)
Wind Gust 22.3 mph 33.4 mph (2013)
Precipitation --- --- ()
Weather ElementAverage
Visibility9.5 mi
Wind DirectionWSW (232.7 °)
Weather ElementTotal
Heating Degree Days4.2 (Base 18.3)
Cooling Degree Days4.5 (Base 18.3)
Growing Degree Days16 (Base 10)
Total Years on Record: 5
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WIND DIRECTION BREAKOUT




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