Frost dates 2026–2027

Frost dates for Thomson, Georgia

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Thomson 1.5SE, 1.5 mi away (close match).

Last spring frostMar 14
First fall frostNov 17
252 frost-free days
Last spring frostMar 141 year in 10 after Mar 31
First fall frostNov 171 year in 10 by Nov 3
Growing season252 daysbetween median 32°F dates
Hardiness zoneZone 8b15 to 20°F average extreme low

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Will it freeze in Thomson in the next 7 nights?

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

Tonight: forecast low 63°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 Thomson

The median first fall hard-freeze date (28°F) is December 4, from NOAA’s 1991–2020 Climate Normals at Thomson 1.5SE. 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 9 · Mar 27 · Apr 12 Oct 25 · Nov 6 · Nov 21 225 days
32°F freeze Feb 21 · Mar 14 · Mar 31 Nov 3 · Nov 17 · Dec 8 252 days
28°F hard freeze Jan 31 · Feb 26 · Mar 19 Nov 14 · Dec 4 · Jan 5 284 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00098677. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Thomson 1.5SE

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 Thomson, GA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Thomson 1.5SE (station USC00098677, elevation 542 ft), 1.5 mi from Thomson. 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 Thomson

CityDistanceLast spring frostFirst fall frost
Grovetown, GA 17 mi Feb 27 Dec 4
Augusta, GA 25 mi Mar 23 Nov 9
North Augusta, SC 31 mi Feb 27 Dec 4
Waynesboro, GA 38 mi Mar 21 Nov 9
Sandersville, GA 38 mi Mar 19 Nov 13
Aiken, SC 45 mi Mar 19 Nov 14
Milledgeville, GA 50 mi Mar 25 Nov 9
Eatonton, GA 52 mi Apr 4 Nov 1
Greenwood, SC 54 mi Mar 26 Nov 12
Madison, GA 57 mi Mar 24 Nov 12

Frequently asked questions

When is the last frost in Thomson?

On average, the last spring frost (32°F) in Thomson is around March 14. In about 1 year in 10 it comes after March 31, and in 9 years in 10 it comes after February 21.

When is the first frost in Thomson?

The first fall frost (32°F) usually arrives around November 17. There’s a 10% chance of a freeze by November 3 and a 90% chance by December 8.

Can it frost in Thomson 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 March 27.

What growing zone is Thomson?

Thomson 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 30824. See growing zones in Georgia.

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