Frost dates 2026–2027

Frost dates for Hartsville, Tennessee

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Hartsville, 1.8 mi away (close match).

Last spring frostApr 12
First fall frostOct 26
196 frost-free days
Last spring frostApr 121 year in 10 after Apr 29
First fall frostOct 261 year in 10 by Oct 13
Growing season196 daysbetween median 32°F dates
Hardiness zoneZone 7b5 to 10°F average extreme low

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Will it freeze in Hartsville in the next 7 nights?

The earliest overnight low at or below 32°F in the available NWS frost forecast is Sat, Nov 7: 29°F (Sat, Nov 7, 6:00 PM CST to Sun, Nov 8, 6:00 AM CST).

Tonight: forecast low 40°F. Above 36°F.

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

6 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 Hartsville

The median first fall hard-freeze date (28°F) is November 4, from NOAA’s 1991–2020 Climate Normals at Hartsville. 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 12 Oct 5 · Oct 17 · Oct 28 173 days
32°F freeze Mar 29 · Apr 12 · Apr 29 Oct 13 · Oct 26 · Nov 6 196 days
28°F hard freeze Mar 13 · Mar 31 · Apr 15 Oct 24 · Nov 4 · Nov 18 218 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00403938. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Hartsville

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 Hartsville, TN come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Hartsville (station USC00403938, elevation 511 ft), 1.8 mi from Hartsville. 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 Hartsville

CityDistanceLast spring frostFirst fall frost
Lafayette, TN 11 mi Apr 3 Nov 1
Lebanon, TN 17 mi Apr 6 Oct 28
Gallatin, TN 17 mi Apr 16 Oct 23
Mount Juliet, TN 24 mi Apr 1 Nov 4
Portland, TN 25 mi Apr 5 Nov 1
Hendersonville, TN 25 mi Apr 11 Oct 29
White House, TN 29 mi Apr 7 Oct 30
Goodlettsville, TN 30 mi Apr 11 Oct 29
Millersville, TN 31 mi Apr 7 Oct 30
Franklin, KY 32 mi Apr 5 Nov 1

Frequently asked questions

When is the last frost in Hartsville?

On average, the last spring frost (32°F) in Hartsville is around April 12. In about 1 year in 10 it comes after April 29, and in 9 years in 10 it comes after March 29.

When is the first frost in Hartsville?

The first fall frost (32°F) usually arrives around October 26. There’s a 10% chance of a freeze by October 13 and a 90% chance by November 6.

Can it frost in Hartsville 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 Hartsville?

Hartsville 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 37074. See growing zones in Tennessee.

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