Frost dates 2026–2027

Frost dates for Somerset, Kentucky

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Somerset 2 N, 2.2 mi away (close match).

Last spring frostApr 5
First fall frostOct 30
206 frost-free days
Last spring frostApr 51 year in 10 after Apr 25
First fall frostOct 301 year in 10 by Oct 17
Growing season206 daysbetween median 32°F dates
Hardiness zoneZone 7a0 to 5°F average extreme low

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Will it freeze in Somerset in the next 7 nights?

The earliest overnight low at or below 32°F in the available NWS frost forecast is Sat, Nov 7: 29°F (Sat, Nov 7, 6:00 PM EST to Sun, Nov 8, 6:00 AM EST).

Tonight: forecast low 43°F. Above 36°F.

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

6 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 Somerset

The median first fall hard-freeze date (28°F) is November 9, from NOAA’s 1991–2020 Climate Normals at Somerset 2 N. 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 2 · Apr 19 · May 7 Oct 6 · Oct 20 · Nov 1 184 days
32°F freeze Mar 21 · Apr 5 · Apr 25 Oct 17 · Oct 30 · Nov 13 206 days
28°F hard freeze Mar 6 · Mar 25 · Apr 12 Oct 28 · Nov 9 · Nov 29 229 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00157510. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Somerset 2 N

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 Somerset, KY come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Somerset 2 N (station USC00157510, elevation 1,020 ft), 2.2 mi from Somerset. 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 Somerset

CityDistanceLast spring frostFirst fall frost
Monticello, KY 22 mi Apr 18 Oct 26
London, KY 29 mi Apr 15 Oct 25
Corbin, KY 30 mi Apr 15 Oct 25
Williamsburg, KY 34 mi Apr 21 Oct 22
Berea, KY 39 mi Apr 5 Nov 2
Danville, KY 39 mi Apr 9 Oct 27
Campbellsville, KY 45 mi Apr 15 Oct 24
Richmond, KY 47 mi Apr 15 Oct 22
Harrodsburg, KY 49 mi Apr 7 Nov 1
Lebanon, KY 49 mi Apr 22 Oct 20

Frequently asked questions

When is the last frost in Somerset?

On average, the last spring frost (32°F) in Somerset is around April 5. In about 1 year in 10 it comes after April 25, and in 9 years in 10 it comes after March 21.

When is the first frost in Somerset?

The first fall frost (32°F) usually arrives around October 30. There’s a 10% chance of a freeze by October 17 and a 90% chance by November 13.

Can it frost in Somerset 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 19.

What growing zone is Somerset?

Somerset is in USDA Plant Hardiness Zone 7a (average annual extreme minimum temperature 0 to 5°F), based on the 2023 USDA map for ZIP code 42533. See growing zones in Kentucky.

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