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Frost dates for Susanville, California

In a typical year, Susanville’s last spring frost lands around May 16 and the first fall frost around Oct 8, a growing season of about 145 days. These are odds drawn from 30-year NOAA climate normals, not a promise. USDA zone 7a.

Right now the typical frost season has arrived; planting waits for spring.

Last spring frost and first fall frost odds for Susanville, California
OddsLast spring frostFirst fall frost
10 percentApr 29Sep 25
50 percentMay 16Oct 8
90 percentJun 5Oct 22

A 10 percent year is an early year, a 90 percent year a late one. Frost-sensitive planting usually waits for the 90 percent side of the last-frost band.

Soil in Susanville is typically around 50°F at 4 inches this time of year, estimated from the last two weeks of normal air temperatures.

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Common questions

When is the last frost in Susanville, California?

Susanville’s last spring frost falls around May 16 in a typical year. One year in ten it is done by April 29, and one year in ten frost holds on until June 5. Frost-sensitive planting usually waits for the late side of that band.

When is the first fall frost in Susanville?

The first fall frost arrives around October 8 in a typical year, as early as September 25 in an early year and as late as October 22 in a late one.

How long is the growing season in Susanville?

About 145 days, counted between the typical last spring frost and the typical first fall frost.

What USDA zone is Susanville in?

Susanville is in USDA hardiness zone 7a under the 2023 USDA Plant Hardiness Zone Map.

Dates come from 30-year NOAA climate normals for the nearest reporting station. They describe odds, not a forecast.

Nearby cities

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