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Frost dates for Reading, Pennsylvania

In a typical year, Reading’s last spring frost lands around Apr 14 and the first fall frost around Oct 29, a growing season of about 198 days. These are odds drawn from 30-year NOAA climate normals, not a promise. USDA zone 7a.

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 Reading, Pennsylvania
OddsLast spring frostFirst fall frost
10 percentApr 1Oct 13
50 percentApr 14Oct 29
90 percentApr 30Nov 10

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 Reading is typically around 54°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 Reading, Pennsylvania?

Reading’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 30. Frost-sensitive planting usually waits for the late side of that band.

When is the first fall frost in Reading?

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 10 in a late one.

How long is the growing season in Reading?

About 198 days, counted between the typical last spring frost and the typical first fall frost.

What USDA zone is Reading in?

Reading 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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