Frost dates 2026–2027

Frost dates for Dunlap, Tennessee

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Whitwell-Sequatchie Valley, 7.1 mi away (close match).

Last spring frostMar 26
First fall frostNov 8
228 frost-free days
Last spring frostMar 261 year in 10 after Apr 13
First fall frostNov 81 year in 10 by Oct 25
Growing season228 daysbetween median 32°F dates
Hardiness zoneZone 7b5 to 10°F average extreme low

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Will it freeze in Dunlap in the next 7 nights?

No overnight lows at or below 32°F are forecast in Dunlap 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 CST to Fri, Nov 6, 6:00 AM CST.

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 Dunlap

The median first fall hard-freeze date (28°F) is November 24, from NOAA’s 1991–2020 Climate Normals at Whitwell-Sequatchie Valley. 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 21 · Apr 9 · Apr 27 Oct 16 · Oct 28 · Nov 12 201 days
32°F freeze Mar 6 · Mar 26 · Apr 13 Oct 25 · Nov 8 · Nov 29 228 days
28°F hard freeze Feb 18 · Mar 12 · Apr 2 Nov 4 · Nov 24 · Dec 13 256 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00409691. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Whitwell-Sequatchie Valley

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 Dunlap, TN come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Whitwell-Sequatchie Valley (station USC00409691, elevation 1,020 ft), 7.1 mi from Dunlap. 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 Dunlap

CityDistanceLast spring frostFirst fall frost
Soddy-Daisy, TN 14 mi Apr 7 Oct 29
Signal Mountain, TN 16 mi Mar 31 Nov 6
Red Bank, TN 19 mi Mar 31 Nov 6
Chattanooga, TN 22 mi Mar 24 Nov 9
Dayton, TN 23 mi Apr 4 Oct 31
East Ridge, TN 27 mi Mar 24 Nov 9
Collegedale, TN 29 mi Mar 24 Nov 9
McMinnville, TN 31 mi Apr 7 Oct 30
Fort Oglethorpe, GA 31 mi Apr 6 Oct 30
Cleveland, TN 32 mi Apr 6 Oct 30

Frequently asked questions

When is the last frost in Dunlap?

On average, the last spring frost (32°F) in Dunlap is around March 26. In about 1 year in 10 it comes after April 13, and in 9 years in 10 it comes after March 6.

When is the first frost in Dunlap?

The first fall frost (32°F) usually arrives around November 8. There’s a 10% chance of a freeze by October 25 and a 90% chance by November 29.

Can it frost in Dunlap 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 9.

What growing zone is Dunlap?

Dunlap 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 37327. See growing zones in Tennessee.

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