Frost dates 2026–2027

Frost dates for Walterboro, South Carolina

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Walterboro 1 SW, 1.1 mi away (close match).

Last spring frostMar 19
First fall frostNov 12
239 frost-free days
Last spring frostMar 191 year in 10 after Apr 9
First fall frostNov 121 year in 10 by Oct 29
Growing season239 daysbetween median 32°F dates
Hardiness zoneZone 8b15 to 20°F average extreme low

Checking current alerts… View NWS forecast and alerts.

Will it freeze in Walterboro in the next 7 nights?

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

Tonight: forecast low 65°F. Above 36°F.

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

No nights at or below 36°F in the National Weather Service forecast for the next 7 nights.

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 Walterboro

The median first fall hard-freeze date (28°F) is November 28, from NOAA’s 1991–2020 Climate Normals at Walterboro 1 SW. 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 12 · Apr 2 · Apr 21 Oct 19 · Nov 1 · Nov 16 213 days
32°F freeze Feb 24 · Mar 19 · Apr 9 Oct 29 · Nov 12 · Dec 1 239 days
28°F hard freeze Feb 7 · Mar 1 · Mar 25 Nov 6 · Nov 28 · Dec 29 271 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00388922. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Walterboro 1 SW

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 Walterboro, SC come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Walterboro 1 SW (station USC00388922, elevation 56 ft), 1.1 mi from Walterboro. 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 Walterboro

CityDistanceLast spring frostFirst fall frost
Hollywood, SC 29 mi Mar 1 Dec 6
Summerville, SC 30 mi Mar 22 Nov 12
Beaufort, SC 30 mi Feb 28 Dec 3
North Charleston, SC 35 mi Mar 7 Nov 27
Port Royal, SC 38 mi Mar 3 Dec 9
Hanahan, SC 39 mi Mar 7 Nov 27
Goose Creek, SC 39 mi Mar 7 Nov 27
Charleston, SC 41 mi Feb 4 Dec 30
Orangeburg, SC 42 mi Mar 13 Nov 15
James Island, SC 45 mi Feb 4 Dec 30

Frequently asked questions

When is the last frost in Walterboro?

On average, the last spring frost (32°F) in Walterboro is around March 19. In about 1 year in 10 it comes after April 9, and in 9 years in 10 it comes after February 24.

When is the first frost in Walterboro?

The first fall frost (32°F) usually arrives around November 12. There’s a 10% chance of a freeze by October 29 and a 90% chance by December 1.

Can it frost in Walterboro 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 2.

What growing zone is Walterboro?

Walterboro is in USDA Plant Hardiness Zone 8b (average annual extreme minimum temperature 15 to 20°F), based on the 2023 USDA map for ZIP code 29488. See growing zones in South Carolina.

More: all South Carolina frost dates · South Carolina growing zones · frost vs. freeze