Frost dates 2026–2027

Frost dates for Eaton, Ohio

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Eaton, 1.2 mi away (close match).

Last spring frostApr 25
First fall frostOct 20
176 frost-free days
Last spring frostApr 251 year in 10 after May 10
First fall frostOct 201 year in 10 by Oct 6
Growing season176 daysbetween median 32°F dates
Hardiness zoneZone 6a−10 to −5°F average extreme low

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Will it freeze in Eaton in the next 7 nights?

The earliest overnight low at or below 32°F in the available NWS frost forecast is Sat, Nov 7: 32°F (Sat, Nov 7, 6:00 PM EST to Sun, Nov 8, 6:00 AM EST).

Tonight: forecast low 44°F. Above 36°F.

NWS forecast period: Thu, Nov 5, 6:00 PM EST to Fri, Nov 6, 6:00 AM EST.

5 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.

Overnight lows from the National Weather Service forecast for this location. This covers the available forecast window, not the first freeze of the whole season. Frost can form above 32°F on clear, calm nights.

Frost and freeze probabilities

Freeze dates shift from year to year. Spring percentages describe the chance of a freeze after the stated date; fall percentages describe the chance of a freeze by that date. The 10% spring date is the cautious one: a later freeze happens about 1 year in 10.

These dates describe historical probabilities, not this year’s forecast or the earliest and latest possible freezes. Different weather stations or probability thresholds can produce different published dates for the same city.

Average first hard freeze in Eaton

The median first fall hard-freeze date (28°F) is October 30, from NOAA’s 1991–2020 Climate Normals at Eaton. This is the 50% probability date, not a forecast for this year.

TemperatureLast spring date
90% · 50% · 10% chance of a later freeze
First fall date
10% · 50% · 90% chance of an earlier freeze
Season
36°F frost possible Apr 21 · May 5 · May 19 Sep 26 · Oct 7 · Oct 22 155 days
32°F freeze Apr 11 · Apr 25 · May 10 Oct 6 · Oct 20 · Nov 1 176 days
28°F hard freeze Mar 29 · Apr 12 · Apr 30 Oct 16 · Oct 30 · Nov 11 198 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00332485. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Eaton

Average low temperature by month

Months with lows near or below freezing carry frost risk

Where these frost dates come from

The frost dates for Eaton, OH come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Eaton (station USC00332485, elevation 1,002 ft), 1.2 mi from Eaton. Local conditions (valleys, hilltops, distance to water, city heat) can shift frost dates by days or weeks. The hardiness zone is from the 2023 USDA Plant Hardiness Zone Map (USDA ARS and Oregon State University PRISM). See our methodology.

Frost dates near Eaton

CityDistanceLast spring frostFirst fall frost
Brookville, OH 13 mi Apr 16 Oct 28
Richmond, IN 15 mi Apr 24 Oct 20
Germantown, OH 17 mi Apr 24 Oct 19
Trotwood, OH 17 mi Apr 18 Oct 25
Oxford, OH 18 mi Apr 19 Oct 22
Clayton, OH 19 mi Apr 16 Oct 28
Englewood, OH 19 mi Apr 16 Oct 28
Union, OH 20 mi Apr 16 Oct 28
Carlisle, OH 21 mi Apr 24 Oct 19
Trenton, OH 21 mi Apr 22 Oct 18

Frequently asked questions

When is the last frost in Eaton?

On average, the last spring frost (32°F) in Eaton is around April 25. In about 1 year in 10 it comes after May 10, and in 9 years in 10 it comes after April 11.

When is the first frost in Eaton?

The first fall frost (32°F) usually arrives around October 20. There’s a 10% chance of a freeze by October 6 and a 90% chance by November 1.

Can it frost in Eaton after the last frost date?

Yes. Frost can form on clear, calm nights even when the air stays above 32°F. Temperatures of 36°F or lower, cold enough for frost on exposed plants, have a 50% chance of occurring after May 5.

What growing zone is Eaton?

Eaton is in USDA Plant Hardiness Zone 6a (average annual extreme minimum temperature −10 to −5°F), based on the 2023 USDA map for ZIP code 45320. See growing zones in Ohio.

More: all Ohio frost dates · Ohio growing zones · frost vs. freeze