Frost dates 2026–2027

Frost dates for Hamilton, Alabama

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Hamilton 3 S, 3.1 mi away (close match).

Last spring frostApr 11
First fall frostOct 27
198 frost-free days
Last spring frostApr 111 year in 10 after Apr 27
First fall frostOct 271 year in 10 by Oct 15
Growing season198 daysbetween median 32°F dates
Hardiness zoneZone 7b5 to 10°F average extreme low

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Will it freeze in Hamilton in the next 7 nights?

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

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

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

3 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 Hamilton

The median first fall hard-freeze date (28°F) is November 4, from NOAA’s 1991–2020 Climate Normals at Hamilton 3 S. 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 7 · Apr 23 · May 7 Oct 7 · Oct 19 · Oct 31 179 days
32°F freeze Mar 26 · Apr 11 · Apr 27 Oct 15 · Oct 27 · Nov 10 198 days
28°F hard freeze Mar 11 · Mar 31 · Apr 16 Oct 22 · Nov 4 · Nov 25 222 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00013645. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Hamilton 3 S

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 Hamilton, AL come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Hamilton 3 S (station USC00013645, elevation 435 ft), 3.1 mi from Hamilton. 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 Hamilton

CityDistanceLast spring frostFirst fall frost
Russellville, AL 29 mi Mar 31 Nov 4
Amory, MS 31 mi Mar 29 Nov 5
Tuscumbia, AL 43 mi Mar 30 Nov 3
Tupelo, MS 45 mi Mar 21 Nov 10
Saltillo, MS 45 mi Mar 21 Nov 10
Jasper, AL 45 mi Mar 30 Nov 4
Sheffield, AL 45 mi Mar 30 Nov 3
Muscle Shoals, AL 46 mi Mar 30 Nov 3
Booneville, MS 50 mi Apr 1 Nov 3
Columbus, MS 50 mi Mar 13 Nov 12

Frequently asked questions

When is the last frost in Hamilton?

On average, the last spring frost (32°F) in Hamilton is around April 11. In about 1 year in 10 it comes after April 27, and in 9 years in 10 it comes after March 26.

When is the first frost in Hamilton?

The first fall frost (32°F) usually arrives around October 27. There’s a 10% chance of a freeze by October 15 and a 90% chance by November 10.

Can it frost in Hamilton 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 23.

What growing zone is Hamilton?

Hamilton is in USDA Plant Hardiness Zone 7b (average annual extreme minimum temperature 5 to 10°F), based on the 2023 USDA map for ZIP code 35570. See growing zones in Alabama.

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