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Frost dates for Guymon, Oklahoma

In a typical year, Guymon’s last spring frost lands around Apr 18 and the first fall frost around Oct 23, a growing season of about 188 days. These are odds drawn from 30-year NOAA climate normals, not a promise. USDA zone 6b.

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

Last spring frost and first fall frost odds for Guymon, Oklahoma
OddsLast spring frostFirst fall frost
10 percentApr 4Oct 11
50 percentApr 18Oct 23
90 percentMay 1Nov 3

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 Guymon is typically around 56°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 Guymon, Oklahoma?

Guymon’s last spring frost falls around April 18 in a typical year. One year in ten it is done by April 4, 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 Guymon?

The first fall frost arrives around October 23 in a typical year, as early as October 11 in an early year and as late as November 3 in a late one.

How long is the growing season in Guymon?

About 188 days, counted between the typical last spring frost and the typical first fall frost.

What USDA zone is Guymon in?

Guymon is in USDA hardiness zone 6b 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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