Frost dates 2026–2027

Frost dates for Lewisburg, Tennessee

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Lewisburg Experiment Station, 2.8 mi away (close match).

Last spring frostApr 14
First fall frostOct 22
192 frost-free days
Last spring frostApr 141 year in 10 after Apr 30
First fall frostOct 221 year in 10 by Oct 9
Growing season192 daysbetween median 32°F dates
Hardiness zoneZone 7b5 to 10°F average extreme low

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Will it freeze in Lewisburg in the next 7 nights?

The earliest overnight low at or below 32°F in the available NWS frost forecast is Sat, Nov 7: 31°F (Sat, Nov 7, 6:00 PM CST to Sun, Nov 8, 6:00 AM CST).

Tonight: forecast low 41°F. Above 36°F.

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

5 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 Lewisburg

The median first fall hard-freeze date (28°F) is November 2, from NOAA’s 1991–2020 Climate Normals at Lewisburg 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 10 · Apr 26 · May 11 Oct 1 · Oct 13 · Oct 26 170 days
32°F freeze Mar 31 · Apr 14 · Apr 30 Oct 9 · Oct 22 · Nov 5 192 days
28°F hard freeze Mar 16 · Apr 3 · Apr 20 Oct 18 · Nov 2 · Nov 17 213 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00405187. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Lewisburg 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 Lewisburg, TN come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Lewisburg Experiment Station (station USC00405187, elevation 787 ft), 2.8 mi from Lewisburg. 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 Lewisburg

CityDistanceLast spring frostFirst fall frost
Columbia, TN 19 mi Apr 10 Oct 27
Shelbyville, TN 19 mi Apr 7 Oct 29
Spring Hill, TN 22 mi Apr 3 Nov 1
Pulaski, TN 22 mi Apr 14 Oct 24
Mount Pleasant, TN 23 mi Apr 5 Oct 28
Fayetteville, TN 24 mi Apr 7 Oct 28
Thompson's Station, TN 26 mi Apr 3 Nov 1
Lynchburg, Moore County, TN 27 mi Apr 15 Oct 25
Franklin, TN 32 mi Apr 3 Oct 31
Tullahoma, TN 33 mi Apr 6 Oct 30

Frequently asked questions

When is the last frost in Lewisburg?

On average, the last spring frost (32°F) in Lewisburg is around April 14. In about 1 year in 10 it comes after April 30, and in 9 years in 10 it comes after March 31.

When is the first frost in Lewisburg?

The first fall frost (32°F) usually arrives around October 22. There’s a 10% chance of a freeze by October 9 and a 90% chance by November 5.

Can it frost in Lewisburg 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 26.

What growing zone is Lewisburg?

Lewisburg 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 37091. See growing zones in Tennessee.

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