Last frost date in Pinole, California

January 4

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 January 26.

January 2

Average first frost in fall. 1 year in 10 it comes by December 11.

A 32°F night happens here about 2 years in 10; in those years these are the usual dates.

Source: NOAA U.S. Climate Normals 1991–2020, station Richmond (USC00047414), 6.5 miles from Pinole, elevation 20 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.

What to plant now

Frost dates for Pinole, California
Early yearAverageLate year
Last frost in springDec 14Jan 4Jan 26
First frost in fallDec 11Jan 2Jan 22

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 Pinole

Fall planting

USDA dates for places whose average first freeze is about December 20 (Pinole: January 2).

USDA lists horseradish as generally spring-planted here.

Spring planting

Pinole'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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