Last frost date in Novato, California

January 11

Average last frost in spring. In an early year (1 in 10) it's over by December 14; in a late year (1 in 10) it comes after February 25.

December 21

Average first frost in fall. 1 year in 10 it comes by December 2.

A 32°F night happens here about 7 years in 10; in those years these are the usual dates.

Source: NOAA U.S. Climate Normals 1991–2020, station San Rafael Civic Ctr (USC00047880), 6 miles from Novato, elevation 120 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.

What to plant now

Frost dates for Novato, California
Early yearAverageLate year
Last frost in springDec 14Jan 11Feb 25
First frost in fallDec 2Dec 21Feb 9

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: 349

Planting calendar for Novato

Fall planting

USDA dates for places whose average first freeze is about December 20 (Novato: December 21).

USDA lists horseradish as generally spring-planted here.

Spring planting

Novato'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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