Last frost date in Watsonville, California

January 28

Average last frost in spring. In an early year (1 in 10) it's over by December 23; in a late year (1 in 10) it comes after March 3.

December 13

Average first frost in fall. 1 year in 10 it comes by November 25.

A 32°F night happens here about 9 years in 10; in those years these are the usual dates.

Source: NOAA U.S. Climate Normals 1991–2020, station Watsonville Wtr Wks (USC00049473), 0.5 miles from Watsonville, elevation 95 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.

What to plant now

Frost dates for Watsonville, California
Early yearAverageLate year
Last frost in springDec 23Jan 28Mar 3
First frost in fallNov 25Dec 13Jan 15

Frost-free days in an average year: 324

Light frost, frost and hard freeze in Watsonville
Chance in a yearAverage last in springAverage first in fall
Light frost (36°F)Every yearMar 15Nov 26
Frost (32°F)9 years in 10Jan 28Dec 13
Hard freeze (28°F)4 years in 10Jan 2Dec 26

Nights at 32°F or colder in an average year: 8.2

What to plant now in Watsonville

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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