Frost dates 2026–2027

Frost dates for Heath, Ohio

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Newark Heath Airport, 1.1 mi away (close match).

Last spring frostApr 22
First fall frostOct 18
178 frost-free days
Last spring frostApr 221 year in 10 after May 10
First fall frostOct 181 year in 10 by Oct 5
Growing season178 daysbetween median 32°F dates
Hardiness zoneZone 6a−10 to −5°F average extreme low

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Will it freeze in Heath in the next 7 nights?

No overnight lows at or below 32°F are forecast in Heath during the next 7 nights in the available NWS frost forecast.

Tonight: forecast low 45°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 Heath

The median first fall hard-freeze date (28°F) is October 31, from NOAA’s 1991–2020 Climate Normals at Newark Heath Airport. 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 18 · May 3 · May 18 Sep 23 · Oct 7 · Oct 19 156 days
32°F freeze Apr 6 · Apr 22 · May 10 Oct 5 · Oct 18 · Nov 1 178 days
28°F hard freeze Mar 26 · Apr 8 · Apr 25 Oct 16 · Oct 31 · Nov 13 204 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USW00004858. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Newark Heath Airport

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 Heath, OH come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Newark Heath Airport (station USW00004858, elevation 884 ft), 1.1 mi from Heath. 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 Heath

CityDistanceLast spring frostFirst fall frost
Newark, OH 3.7 mi Apr 29 Oct 16
Granville, OH 4.3 mi Apr 22 Oct 18
Pataskala, OH 15 mi Apr 18 Oct 27
Johnstown, OH 16 mi Apr 27 Oct 17
New Albany, OH 18 mi Apr 18 Oct 27
Reynoldsburg, OH 19 mi Apr 18 Oct 27
Pickerington, OH 19 mi Apr 23 Oct 19
Lancaster, OH 22 mi Apr 22 Oct 24
Gahanna, OH 23 mi Apr 18 Oct 27
Zanesville, OH 23 mi Apr 26 Oct 19

Frequently asked questions

When is the last frost in Heath?

On average, the last spring frost (32°F) in Heath is around April 22. In about 1 year in 10 it comes after May 10, and in 9 years in 10 it comes after April 6.

When is the first frost in Heath?

The first fall frost (32°F) usually arrives around October 18. There’s a 10% chance of a freeze by October 5 and a 90% chance by November 1.

Can it frost in Heath 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 3.

What growing zone is Heath?

Heath 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 43030. See growing zones in Ohio.

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