Frost dates 2026–2027

Frost dates for Walton, Kentucky

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Cincinnati Northern Ky Airport, 13 mi away (close match).

Last spring frostApr 18
First fall frostOct 25
188 frost-free days
Last spring frostApr 181 year in 10 after May 7
First fall frostOct 251 year in 10 by Oct 12
Growing season188 daysbetween median 32°F dates
Hardiness zoneZone 6b−5 to 0°F average extreme low

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Will it freeze in Walton in the next 7 nights?

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

Tonight: forecast low 45°F. Above 36°F.

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

2 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 Walton

The median first fall hard-freeze date (28°F) is November 3, from NOAA’s 1991–2020 Climate Normals at Cincinnati Northern Ky 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 Apr 14 · Apr 30 · May 17 Oct 2 · Oct 15 · Oct 26 169 days
32°F freeze Apr 3 · Apr 18 · May 7 Oct 12 · Oct 25 · Nov 5 188 days
28°F hard freeze Mar 21 · Apr 5 · Apr 23 Oct 22 · Nov 3 · Nov 16 212 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USW00093814. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Cincinnati Northern Ky 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 Walton, KY come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Cincinnati Northern Ky Airport (station USW00093814, elevation 869 ft), 13 mi from Walton. 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 Walton

CityDistanceLast spring frostFirst fall frost
Union, KY 6.8 mi Apr 18 Oct 25
Independence, KY 7.5 mi Apr 18 Oct 25
Elsmere, KY 9.3 mi Apr 18 Oct 25
Florence, KY 9.3 mi Apr 18 Oct 25
Edgewood, KY 11 mi Apr 18 Oct 25
Taylor Mill, KY 12 mi Apr 16 Oct 25
Erlanger, KY 12 mi Apr 18 Oct 25
Covington, KY 13 mi Apr 16 Oct 25
Fort Mitchell, KY 13 mi Apr 18 Oct 25
Fort Wright, KY 13 mi Apr 18 Oct 25

Frequently asked questions

When is the last frost in Walton?

On average, the last spring frost (32°F) in Walton is around April 18. In about 1 year in 10 it comes after May 7, and in 9 years in 10 it comes after April 3.

When is the first frost in Walton?

The first fall frost (32°F) usually arrives around October 25. There’s a 10% chance of a freeze by October 12 and a 90% chance by November 5.

Can it frost in Walton 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 30.

What growing zone is Walton?

Walton is in USDA Plant Hardiness Zone 6b (average annual extreme minimum temperature −5 to 0°F), based on the 2023 USDA map for ZIP code 41094. See growing zones in Kentucky.

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