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Frost dates for The Dalles, Oregon

In a typical year, The Dalles’s last spring frost lands around Apr 14 and the first fall frost around Oct 23, a growing season of about 192 days. These are odds drawn from 30-year NOAA climate normals, not a promise. USDA zone 7b.

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

Last spring frost and first fall frost odds for The Dalles, Oregon
OddsLast spring frostFirst fall frost
10 percentMar 27Oct 5
50 percentApr 14Oct 23
90 percentMay 1Nov 9

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 The Dalles is typically around 52°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 The Dalles, Oregon?

The Dalles’s last spring frost falls around April 14 in a typical year. One year in ten it is done by March 27, and one year in ten frost holds on until May 1. Frost-sensitive planting usually waits for the late side of that band.

When is the first fall frost in The Dalles?

The first fall frost arrives around October 23 in a typical year, as early as October 5 in an early year and as late as November 9 in a late one.

How long is the growing season in The Dalles?

About 192 days, counted between the typical last spring frost and the typical first fall frost.

What USDA zone is The Dalles in?

The Dalles is in USDA hardiness zone 7b 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.

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