Frost dates 2026–2027

Frost dates for Greeneville, Tennessee

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Greeneville Experiment Station, 4.5 mi away (close match).

Last spring frostApr 20
First fall frostOct 22
185 frost-free days
Last spring frostApr 201 year in 10 after May 8
First fall frostOct 221 year in 10 by Oct 8
Growing season185 daysbetween median 32°F dates
Hardiness zoneZone 7a0 to 5°F average extreme low

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Will it freeze in Greeneville in the next 7 nights?

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

Tonight: forecast low 49°F. Above 36°F.

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

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 Greeneville

The median first fall hard-freeze date (28°F) is November 1, from NOAA’s 1991–2020 Climate Normals at Greeneville Experiment Station. 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 18 · May 2 · May 16 Oct 1 · Oct 13 · Oct 28 165 days
32°F freeze Apr 4 · Apr 20 · May 8 Oct 8 · Oct 22 · Nov 3 185 days
28°F hard freeze Mar 22 · Apr 6 · Apr 24 Oct 17 · Nov 1 · Nov 12 207 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00403679. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Greeneville Experiment Station

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 Greeneville, TN come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Greeneville Experiment Station (station USC00403679, elevation 1,320 ft), 4.5 mi from Greeneville. 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 Greeneville

CityDistanceLast spring frostFirst fall frost
Jonesborough, TN 21 mi Apr 21 Oct 23
Erwin, TN 23 mi Apr 21 Oct 23
Church Hill, TN 25 mi Apr 9 Oct 29
Newport, TN 25 mi Apr 7 Oct 29
Morristown, TN 27 mi Apr 10 Oct 28
Johnson City, TN 27 mi Apr 19 Oct 24
Mount Carmel, TN 29 mi Apr 9 Oct 29
Kingsport, TN 29 mi Apr 9 Oct 29
Elizabethton, TN 35 mi Apr 19 Oct 24
Jefferson City, TN 37 mi Apr 24 Oct 17

Frequently asked questions

When is the last frost in Greeneville?

On average, the last spring frost (32°F) in Greeneville is around April 20. In about 1 year in 10 it comes after May 8, and in 9 years in 10 it comes after April 4.

When is the first frost in Greeneville?

The first fall frost (32°F) usually arrives around October 22. There’s a 10% chance of a freeze by October 8 and a 90% chance by November 3.

Can it frost in Greeneville 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 May 2.

What growing zone is Greeneville?

Greeneville 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 37616. See growing zones in Tennessee.

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