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Frost dates for Olathe, Kansas

In a typical year, Olathe’s last spring frost lands around Apr 10 and the first fall frost around Oct 29, a growing season of about 202 days. These are odds drawn from 30-year NOAA climate normals, not a promise. USDA zone 6b.

Right now the growing season is open, with about 4 days until the typical first fall frost.

Last spring frost and first fall frost odds for Olathe, Kansas
OddsLast spring frostFirst fall frost
10 percentMar 27Oct 13
50 percentApr 10Oct 29
90 percentApr 24Nov 12

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 Olathe 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 Olathe, Kansas?

Olathe’s last spring frost falls around April 10 in a typical year. One year in ten it is done by March 27, and one year in ten frost holds on until April 24. Frost-sensitive planting usually waits for the late side of that band.

When is the first fall frost in Olathe?

The first fall frost arrives around October 29 in a typical year, as early as October 13 in an early year and as late as November 12 in a late one.

How long is the growing season in Olathe?

About 202 days, counted between the typical last spring frost and the typical first fall frost.

What USDA zone is Olathe in?

Olathe 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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