Frost dates 2026–2027

Frost dates for Thomaston, Georgia

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Thomaston 4SE, 4.0 mi away (close match).

Last spring frostMar 23
First fall frostNov 12
234 frost-free days
Last spring frostMar 231 year in 10 after Apr 11
First fall frostNov 121 year in 10 by Oct 31
Growing season234 daysbetween median 32°F dates
Hardiness zoneZone 8b15 to 20°F average extreme low

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Will it freeze in Thomaston in the next 7 nights?

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

Tonight: forecast low 60°F. Above 36°F.

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

No nights at or below 36°F in the National Weather Service forecast for the next 7 nights.

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 Thomaston

The median first fall hard-freeze date (28°F) is November 26, from NOAA’s 1991–2020 Climate Normals at Thomaston 4SE. 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 Mar 19 · Apr 5 · Apr 20 Oct 20 · Nov 1 · Nov 16 211 days
32°F freeze Mar 1 · Mar 23 · Apr 11 Oct 31 · Nov 12 · Nov 28 234 days
28°F hard freeze Feb 14 · Mar 10 · Mar 29 Nov 7 · Nov 26 · Dec 18 260 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00098661. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Thomaston 4SE

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 Thomaston, GA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Thomaston 4SE (station USC00098661, elevation 620 ft), 4.0 mi from Thomaston. 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 Thomaston

CityDistanceLast spring frostFirst fall frost
Barnesville, GA 15 mi Mar 18 Nov 14
Griffin, GA 24 mi Mar 20 Nov 13
Senoia, GA 32 mi Mar 26 Nov 6
Locust Grove, GA 34 mi Mar 31 Nov 6
Hampton, GA 34 mi Mar 20 Nov 13
Jackson, GA 35 mi Mar 31 Nov 6
Fort Valley, GA 35 mi Mar 11 Nov 19
Macon, GA 37 mi Mar 21 Nov 10
Peachtree City, GA 37 mi Mar 26 Nov 6
Byron, GA 37 mi Mar 21 Nov 10

Frequently asked questions

When is the last frost in Thomaston?

On average, the last spring frost (32°F) in Thomaston is around March 23. In about 1 year in 10 it comes after April 11, and in 9 years in 10 it comes after March 1.

When is the first frost in Thomaston?

The first fall frost (32°F) usually arrives around November 12. There’s a 10% chance of a freeze by October 31 and a 90% chance by November 28.

Can it frost in Thomaston 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 April 5.

What growing zone is Thomaston?

Thomaston is in USDA Plant Hardiness Zone 8b (average annual extreme minimum temperature 15 to 20°F), based on the 2023 USDA map for ZIP code 30286. See growing zones in Georgia.

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