Frost dates 2026–2027

Frost dates for Byron, Georgia

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Macon Middle Ga Regional Airport, 6.0 mi away (close match).

Last spring frostMar 21
First fall frostNov 10
235 frost-free days
Last spring frostMar 211 year in 10 after Apr 7
First fall frostNov 101 year in 10 by Oct 29
Growing season235 daysbetween median 32°F dates
Hardiness zoneZone 8b15 to 20°F average extreme low

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Will it freeze in Byron in the next 7 nights?

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

Tonight: forecast low 62°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 Byron

The median first fall hard-freeze date (28°F) is November 24, from NOAA’s 1991–2020 Climate Normals at Macon Middle Ga Regional 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 Mar 17 · Apr 3 · Apr 19 Oct 20 · Nov 1 · Nov 13 211 days
32°F freeze Feb 28 · Mar 21 · Apr 7 Oct 29 · Nov 10 · Nov 29 235 days
28°F hard freeze Feb 5 · Mar 3 · Mar 24 Nov 6 · Nov 24 · Dec 21 267 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USW00003813. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Macon Middle Ga Regional 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 Byron, GA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Macon Middle Ga Regional Airport (station USW00003813, elevation 343 ft), 6.0 mi from Byron. 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 Byron

CityDistanceLast spring frostFirst fall frost
Centerville, GA 3.7 mi Mar 21 Nov 10
Warner Robins, GA 6.8 mi Mar 11 Nov 19
Fort Valley, GA 11 mi Mar 11 Nov 19
Macon, GA 11 mi Mar 21 Nov 10
Perry, GA 12 mi Mar 11 Nov 19
Barnesville, GA 36 mi Mar 18 Nov 14
Thomaston, GA 37 mi Mar 23 Nov 12
Milledgeville, GA 42 mi Mar 25 Nov 9
Eastman, GA 46 mi Mar 5 Nov 24
Jackson, GA 46 mi Mar 31 Nov 6

Frequently asked questions

When is the last frost in Byron?

On average, the last spring frost (32°F) in Byron is around March 21. In about 1 year in 10 it comes after April 7, and in 9 years in 10 it comes after February 28.

When is the first frost in Byron?

The first fall frost (32°F) usually arrives around November 10. There’s a 10% chance of a freeze by October 29 and a 90% chance by November 29.

Can it frost in Byron 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 3.

What growing zone is Byron?

Byron 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 31008. See growing zones in Georgia.

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