Frost dates in Los Altos Hills, CA

The average last spring frost in Los Altos Hills is around March 31 and the first fall frost is around December 4. That gives Los Altos Hills an average growing season of about 248 days.

Last spring frost

Early (10% chance after)February 8
Average (50%)March 31
Late (90%)April 14

First fall frost

Early (10%)November 12
Average (50%)December 4
Late (90% chance before)December 20

See the Los Altos Hills planting calendar →