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Frost dates for Tacoma, Washington

In a typical year, Tacoma’s last spring frost lands around Mar 8 and the first fall frost around Nov 14, a growing season of about 251 days. These are odds drawn from 30-year NOAA climate normals, not a promise. USDA zone 8b.

Right now the growing season is open, with about 20 days until the typical first fall frost.

Last spring frost and first fall frost odds for Tacoma, Washington
OddsLast spring frostFirst fall frost
10 percentFeb 15Oct 30
50 percentMar 8Nov 14
90 percentMar 31Dec 2

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 Tacoma is typically around 52°F at 4 inches this time of year, estimated from the last two weeks of normal air temperatures.

Plantable now in Tacoma

Timing comes from the same temperature engine the app uses, run against Tacoma’s normals for today.

See the full what-to-plant lookup

Common questions

When is the last frost in Tacoma, Washington?

Tacoma’s last spring frost falls around March 8 in a typical year. One year in ten it is done by February 15, and one year in ten frost holds on until March 31. Frost-sensitive planting usually waits for the late side of that band.

When is the first fall frost in Tacoma?

The first fall frost arrives around November 14 in a typical year, as early as October 30 in an early year and as late as December 2 in a late one.

How long is the growing season in Tacoma?

About 251 days, counted between the typical last spring frost and the typical first fall frost.

What USDA zone is Tacoma in?

Tacoma is in USDA hardiness zone 8b 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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