Frost dates 2026–2027

Frost dates for Hattiesburg, Mississippi

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Hattiesburg 5SW, 3.9 mi away (close match).

Last spring frostMar 7
First fall frostNov 23
261 frost-free days
Last spring frostMar 71 year in 10 after Mar 26
First fall frostNov 231 year in 10 by Nov 5
Growing season261 daysbetween median 32°F dates
Hardiness zoneZone 8b15 to 20°F average extreme low

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Will it freeze in Hattiesburg in the next 7 nights?

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

Tonight: forecast low 51°F. Above 36°F.

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

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 Hattiesburg

The median first fall hard-freeze date (28°F) is December 4, from NOAA’s 1991–2020 Climate Normals at Hattiesburg 5SW. 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 2 · Mar 23 · Apr 12 Oct 27 · Nov 11 · Nov 29 233 days
32°F freeze Feb 14 · Mar 7 · Mar 26 Nov 5 · Nov 23 · Dec 14 261 days
28°F hard freeze Jan 26 · Feb 20 · Mar 16 Nov 14 · Dec 4 · Jan 6 291 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00223887. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Hattiesburg 5SW

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 Hattiesburg, MS come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Hattiesburg 5SW (station USC00223887, elevation 385 ft), 3.9 mi from Hattiesburg. 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 Hattiesburg

CityDistanceLast spring frostFirst fall frost
Petal, MS 5.6 mi Mar 8 Nov 15
Laurel, MS 29 mi Mar 12 Nov 12
Columbia, MS 30 mi Mar 5 Nov 19
Bogalusa, LA 49 mi Mar 2 Nov 23
Picayune, MS 58 mi Mar 9 Nov 18
Gulfport, MS 63 mi Feb 23 Dec 3
Diamondhead, MS 64 mi Feb 21 Dec 3
D'Iberville, MS 65 mi Feb 12 Dec 14
Biloxi, MS 65 mi Feb 12 Dec 14
Long Beach, MS 66 mi Feb 18 Dec 14

Frequently asked questions

When is the last frost in Hattiesburg?

On average, the last spring frost (32°F) in Hattiesburg is around March 7. In about 1 year in 10 it comes after March 26, and in 9 years in 10 it comes after February 14.

When is the first frost in Hattiesburg?

The first fall frost (32°F) usually arrives around November 23. There’s a 10% chance of a freeze by November 5 and a 90% chance by December 14.

Can it frost in Hattiesburg 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 March 23.

What growing zone is Hattiesburg?

Hattiesburg 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 39406. See growing zones in Mississippi.

More: all Mississippi frost dates · Mississippi growing zones · UV index today in Hattiesburg · frost vs. freeze