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Frost dates for Astoria, Oregon

In a typical year, Astoria’s last spring frost lands around Mar 30 and the first fall frost around Nov 18, a growing season of about 233 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 24 days until the typical first fall frost.

Last spring frost and first fall frost odds for Astoria, Oregon
OddsLast spring frostFirst fall frost
10 percentFeb 26Oct 27
50 percentMar 30Nov 18
90 percentApr 28Dec 16

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 Astoria 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 Astoria

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

See the full what-to-plant lookup

Common questions

When is the last frost in Astoria, Oregon?

Astoria’s last spring frost falls around March 30 in a typical year. One year in ten it is done by February 26, and one year in ten frost holds on until April 28. Frost-sensitive planting usually waits for the late side of that band.

When is the first fall frost in Astoria?

The first fall frost arrives around November 18 in a typical year, as early as October 27 in an early year and as late as December 16 in a late one.

How long is the growing season in Astoria?

About 233 days, counted between the typical last spring frost and the typical first fall frost.

What USDA zone is Astoria in?

Astoria 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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