Last frost date in Campbell, California

February 2

Average last frost in spring. In an early year (1 in 10) it's over by December 31; in a late year (1 in 10) it comes after March 14.

December 6

Average first frost in fall. 1 year in 10 it comes by November 16.

A 32°F night happens here about 10 years in 10; in those years these are the usual dates.

Source: NOAA U.S. Climate Normals 1991–2020, station Los Gatos (USC00045123), 3.4 miles from Campbell, elevation 365 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.

This station is also the nearest one for Los Gatos and Saratoga, so their frost dates are the same as Campbell's.

What to plant now

Frost dates for Campbell, California
Early yearAverageLate year
Last frost in springDec 31Feb 2Mar 14
First frost in fallNov 16Dec 6Jan 7

Frost-free days in an average year: 310

Light frost, frost and hard freeze in Campbell
Chance in a yearAverage last in springAverage first in fall
Light frost (36°F)Every yearMar 20Nov 20
Frost (32°F)10 years in 10Feb 2Dec 6
Hard freeze (28°F)6 years in 10Jan 1Dec 19

Nights at 32°F or colder in an average year: 13

What to plant now in Campbell

Planting dates: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” tables 4 and 5. How we match the table.

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