Portola Valley, California

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Average change in

Temperature

Average change in high temperature day-to-day

Last 12 months:

3.7°F

Average change in low temperature day-to-day

Last 12 months:

3.2°F

Average change in

Precipitation

Chance of dry day after a precip day

Last 12 months:

42%

Chance of precip day after a dry day

Last 12 months:

4%

Did You

Know?

The best forecasters predict Portola Valley's high temperature within 3°F about 81% of the time.