Frost dates 2026–2027

Frost dates for Opelousas, Louisiana

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Grand Coteau, 7.7 mi away (close match).

Last spring frostFeb 28
First fall frostNov 23
267 frost-free days
Last spring frostFeb 281 year in 10 after Mar 25
First fall frostNov 231 year in 10 by Nov 5
Growing season267 daysbetween median 32°F dates
Hardiness zoneZone 9a20 to 25°F average extreme low

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Will it freeze in Opelousas in the next 7 nights?

No overnight lows at or below 32°F are forecast in Opelousas 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 Opelousas

The median first fall hard-freeze date (28°F) is December 8, from NOAA’s 1991–2020 Climate Normals at Grand Coteau. 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 Feb 24 · Mar 18 · Apr 7 Oct 30 · Nov 13 · Dec 1 239 days
32°F freeze Jan 31 · Feb 28 · Mar 25 Nov 5 · Nov 23 · Dec 16 267 days
28°F hard freeze Jan 5 · Feb 6 · Mar 8 Nov 14 · Dec 8 · Jan 11 302 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00163800. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Grand Coteau

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 Opelousas, LA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Grand Coteau (station USC00163800, elevation 55 ft), 7.7 mi from Opelousas. 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 Opelousas

CityDistanceLast spring frostFirst fall frost
Carencro, LA 15 mi Feb 26 Nov 28
Ville Platte, LA 16 mi Feb 26 Nov 27
Scott, LA 20 mi Feb 26 Nov 28
Breaux Bridge, LA 20 mi Feb 13 Dec 4
Eunice, LA 21 mi Feb 26 Nov 27
Lafayette, LA 22 mi Feb 26 Nov 28
Rayne, LA 22 mi Feb 20 Dec 4
Crowley, LA 27 mi Feb 20 Dec 4
Broussard, LA 28 mi Feb 13 Dec 4
Youngsville, LA 30 mi Feb 19 Dec 1

Frequently asked questions

When is the last frost in Opelousas?

On average, the last spring frost (32°F) in Opelousas is around February 28. In about 1 year in 10 it comes after March 25, and in 9 years in 10 it comes after January 31.

When is the first frost in Opelousas?

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 16.

Can it frost in Opelousas 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 18.

What growing zone is Opelousas?

Opelousas is in USDA Plant Hardiness Zone 9a (average annual extreme minimum temperature 20 to 25°F), based on the 2023 USDA map for ZIP code 70570. See growing zones in Louisiana.

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