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Frost dates for Grand Junction, Colorado

In a typical year, Grand Junction’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 7a.

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

Last spring frost and first fall frost odds for Grand Junction, Colorado
OddsLast spring frostFirst fall frost
10 percentApr 1Oct 11
50 percentApr 14Oct 23
90 percentApr 28Nov 6

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 Grand Junction is typically around 53°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 Grand Junction, Colorado?

Grand Junction’s last spring frost falls around April 14 in a typical year. One year in ten it is done by April 1, 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 Grand Junction?

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 6 in a late one.

How long is the growing season in Grand Junction?

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

What USDA zone is Grand Junction in?

Grand Junction is in USDA hardiness zone 7a 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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