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Frost dates for Altus, Oklahoma

In a typical year, Altus’s last spring frost lands around Apr 5 and the first fall frost around Nov 2, a growing season of about 211 days. These are odds drawn from 30-year NOAA climate normals, not a promise. USDA zone 7b.

Right now the growing season is open, with about 8 days until the typical first fall frost.

Last spring frost and first fall frost odds for Altus, Oklahoma
OddsLast spring frostFirst fall frost
10 percentMar 20Oct 19
50 percentApr 5Nov 2
90 percentApr 21Nov 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 Altus is typically around 60°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 Altus, Oklahoma?

Altus’s last spring frost falls around April 5 in a typical year. One year in ten it is done by March 20, and one year in ten frost holds on until April 21. Frost-sensitive planting usually waits for the late side of that band.

When is the first fall frost in Altus?

The first fall frost arrives around November 2 in a typical year, as early as October 19 in an early year and as late as November 16 in a late one.

How long is the growing season in Altus?

About 211 days, counted between the typical last spring frost and the typical first fall frost.

What USDA zone is Altus in?

Altus 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.

Nearby cities

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