Frost dates 2026–2027

Frost dates for Kingsport, Tennessee

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Kingsport, 0.9 mi away (close match).

Last spring frostApr 9
First fall frostOct 29
203 frost-free days
Last spring frostApr 91 year in 10 after Apr 25
First fall frostOct 291 year in 10 by Oct 15
Growing season203 daysbetween median 32°F dates
Hardiness zoneZone 7b5 to 10°F average extreme low

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Will it freeze in Kingsport in the next 7 nights?

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

Tonight: forecast low 50°F. Above 36°F.

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

4 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 Kingsport

The median first fall hard-freeze date (28°F) is November 6, from NOAA’s 1991–2020 Climate Normals at Kingsport. 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 6 · Apr 23 · May 10 Oct 6 · Oct 20 · Nov 1 180 days
32°F freeze Mar 25 · Apr 9 · Apr 25 Oct 15 · Oct 29 · Nov 10 203 days
28°F hard freeze Mar 10 · Mar 28 · Apr 12 Oct 25 · Nov 6 · Nov 23 224 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00404858. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Kingsport

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 Kingsport, TN come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Kingsport (station USC00404858, elevation 1,284 ft), 0.9 mi from Kingsport. 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 Kingsport

CityDistanceLast spring frostFirst fall frost
Mount Carmel, TN 7.5 mi Apr 9 Oct 29
Church Hill, TN 9.3 mi Apr 9 Oct 29
Johnson City, TN 15 mi Apr 19 Oct 24
Jonesborough, TN 16 mi Apr 21 Oct 23
Bristol, TN 18 mi Apr 16 Oct 24
Elizabethton, TN 21 mi Apr 19 Oct 24
Bristol, VA 22 mi Apr 21 Oct 20
Erwin, TN 27 mi Apr 21 Oct 23
Big Stone Gap, VA 27 mi Apr 20 Oct 23
Greeneville, TN 29 mi Apr 20 Oct 22

Frequently asked questions

When is the last frost in Kingsport?

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

When is the first frost in Kingsport?

The first fall frost (32°F) usually arrives around October 29. There’s a 10% chance of a freeze by October 15 and a 90% chance by November 10.

Can it frost in Kingsport 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 Kingsport?

Kingsport 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 37660. See growing zones in Tennessee.

More: all Tennessee frost dates · Tennessee growing zones · UV index today in Kingsport · frost vs. freeze