Last frost date in Moreno Valley, California

January 27

Average last frost in spring. In an early year (1 in 10) it's over by December 21; in a late year (1 in 10) it comes after February 28.

December 19

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

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 Redlands (USC00047306), 7.9 miles from Moreno Valley, elevation 1,410 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.

What to plant now

Frost dates for Moreno Valley, California
Early yearAverageLate year
Last frost in springDec 21Jan 27Feb 28
First frost in fallDec 1Dec 19Jan 26

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: 329

Planting calendar for Moreno Valley

Fall planting

USDA dates for places whose average first freeze is about December 20 (Moreno Valley: December 19).

USDA lists horseradish as generally spring-planted 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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