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United States of America

PORTOLA VALLEY, CALIFORNIA


Home > North America > United States > California
Elevation: 350 feet     Latitude: 37 24N     Longitude: 122 14W

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DAILY WEATHER AVERAGE - SEPTEMBER 18
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[ °C ]   °F
Weather ElementAvgAvg HighAvg LowRecord HighRecord Low
Temperature 68.8 °F 78.3 °F 58.1 °F 93.2 °F (2009) 51.8 °F (2008)
Dewpoint 52.4 °F 56.4 °F 47.8 °F 64.4 °F (2009) 32 °F (2003)
Humidity 59.9 % 80.6 % 39.8 % 12 % (2003)
Barometer 29.92 in 29.97 in 29.87 in 30.13 in (2012) 29.75 in (2002)
Wind Speed 8.5 mph 15.3 mph 28.8 mph (1998)
Wind Gust 22.5 mph 28.8 mph (2007)
Precipitation --- --- ()
Weather ElementAverage
Visibility18.3 mi
Wind DirectionSSW (210.3 °)
Weather ElementTotal
Heating Degree Days2.6 (Base 18.3)
Cooling Degree Days5.5 (Base 18.3)
Growing Degree Days18.2 (Base 10)
Total Years on Record: 21
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