PORTOLA VALLEY, CALIFORNIA

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Elevation: 107 meters Latitude: 37 24N Longitude: 122 14W

WEATHER

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DAILY WEATHER AVERAGE - 25 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	9.6 ^°C	13.3 ^°C	5.4 ^°C	18 ^°C (1999)	0 ^°C (1998)
Dewpoint	4.2 ^°C	6.5 ^°C	2.1 ^°C	15 ^°C (2005)	-5 ^°C (2007)
Humidity	71.7 ^%	87.3 ^%	53.2 ^%		29 ^% (2007)
Barometer	1021 ^hPa	1023.7 ^hPa	1018.6 ^hPa	1034.5 ^hPa (1998)	1005.1 ^hPa (2008)
Wind Speed	9.7 ^km/h	21.4 ^km/h		81.4 ^km/h (1997)
Wind Gust		45.4 ^km/h		62.9 ^km/h (2008)
Precipitation	11.43 ^mm			11.43 ^mm (2012)

Weather Element	Average
Visibility	20 ^km
Wind Direction	SE (129.8 °)

Weather Element	Total
Heating Degree Days	9 (Base 18.3)
Growing Degree Days	1.2 (Base 10)

Total Years on Record: 21

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