Last frost date in Fillmore, California

December 31

Average last frost in spring. In an early year (1 in 10) it's over by December 11; in a late year (1 in 10) it comes after February 2.

December 28

Average first frost in fall. 1 year in 10 it comes by December 7.

A 32°F night happens here about 3 years in 10; in those years these are the usual dates.

Source: NOAA U.S. Climate Normals 1991–2020, station Camarillo AP (USW00023136), 15.8 miles from Fillmore, elevation 77 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.

What to plant now

Frost dates for Fillmore, California
Early yearAverageLate year
Last frost in springDec 11Dec 31Feb 2
First frost in fallDec 7Dec 28Jan 29

An early or late year is one in 10: 1 year in 10 the frost comes before the early date, and 1 year in 10 after the late date.

Frost-free days in an average year: 365

Planting calendar for Fillmore

Fall planting

USDA dates for places whose average first freeze is about December 20 (Fillmore: December 28).

USDA lists horseradish as generally spring-planted here.

Spring planting

Fillmore's average last frost falls outside the dates USDA's planting table covers, so we don't give spring planting dates here.

Planting dates: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” tables 4 and 5 (earliest safe spring and latest safe fall dates), applied to this place's NOAA frost dates. “Plants” means setting out transplants, not sowing seed. How we match the table.

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