Frost dates 2026–2027

Frost dates for Thibodaux, Louisiana

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Thibodaux 4 SE, 3.7 mi away (close match).

Last spring frostFeb 5
First fall frostDec 14
311 frost-free days
Last spring frostFeb 51 year in 10 after Mar 7
First fall frostDec 141 year in 10 by Nov 19
Growing season311 daysbetween median 32°F dates
Hardiness zoneZone 9b25 to 30°F average extreme low

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Will it freeze in Thibodaux in the next 7 nights?

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

Tonight: forecast low 57°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 Thibodaux

The median first fall hard-freeze date (28°F) is January 1, from NOAA’s 1991–2020 Climate Normals at Thibodaux 4 SE. 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 Jan 30 · Feb 27 · Mar 21 Nov 7 · Nov 29 · Dec 23 277 days
32°F freeze Jan 3 · Feb 5 · Mar 7 Nov 19 · Dec 14 · Jan 15 311 days
28°F hard freeze Dec 24 · Jan 23 · Feb 21 Dec 4 · Jan 1 · Feb 1 346 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00169013. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Thibodaux 4 SE

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 Thibodaux, LA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Thibodaux 4 SE (station USC00169013, elevation 15 ft), 3.7 mi from Thibodaux. 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 Thibodaux

CityDistanceLast spring frostFirst fall frost
Houma, LA 16 mi Feb 5 Dec 17
Donaldsonville, LA 24 mi Feb 21 Dec 5
Morgan City, LA 24 mi Jan 30 Jan 1
Gonzales, LA 30 mi Feb 21 Dec 5
Patterson, LA 30 mi Jan 30 Jan 1
St. Gabriel, LA 36 mi Feb 9 Dec 13
Kenner, LA 37 mi Jan 30 Dec 31
Harahan, LA 38 mi Jan 24 Jan 2
Westwego, LA 41 mi Jan 24 Jan 2
St. George, LA 41 mi Feb 28 Nov 26

Frequently asked questions

When is the last frost in Thibodaux?

On average, the last spring frost (32°F) in Thibodaux is around February 5. In about 1 year in 10 it comes after March 7, and in 9 years in 10 it comes after January 3.

When is the first frost in Thibodaux?

The first fall frost (32°F) usually arrives around December 14. There’s a 10% chance of a freeze by November 19 and a 90% chance by January 15.

Can it frost in Thibodaux 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 February 27.

What growing zone is Thibodaux?

Thibodaux is in USDA Plant Hardiness Zone 9b (average annual extreme minimum temperature 25 to 30°F), based on the 2023 USDA map for ZIP code 70310. See growing zones in Louisiana.

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