Frost dates 2026–2027

Frost dates for Morgan City, Louisiana

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Morgan City, 2.1 mi away (close match).

Last spring frostJan 30
First fall frostJan 1
335 frost-free days
Last spring frostJan 301 year in 10 after Mar 5
First fall frostJan 11 year in 10 by Dec 2
Growing season335 daysbetween median 32°F dates
Hardiness zoneZone 9b25 to 30°F average extreme low

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Will it freeze in Morgan City in the next 7 nights?

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

Tonight: forecast low 64°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 Morgan City

Most years have no 28°F hard freeze at Morgan City, according to NOAA’s 1991–2020 Climate Normals. Check the short-term forecast above during cold snaps.

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 15 · Feb 15 · Mar 13 Nov 20 · Dec 14 · Jan 14 302 days
32°F freeze Dec 30 · Jan 30 · Mar 5 Dec 2 · Jan 1 · Feb 2 335 days
28°F hard freeze Dec 27 · Jan 22 · Mar 1 Dec 17 · Jan 6 · Feb 5 365 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00166394. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Morgan City

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 Morgan City, LA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Morgan City (station USC00166394, elevation 5 ft), 2.1 mi from Morgan City. 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 Morgan City

CityDistanceLast spring frostFirst fall frost
Patterson, LA 7.5 mi Jan 30 Jan 1
Franklin, LA 20 mi Feb 11 Dec 8
Thibodaux, LA 24 mi Feb 5 Dec 14
Donaldsonville, LA 29 mi Feb 21 Dec 5
Houma, LA 30 mi Feb 5 Dec 17
St. Gabriel, LA 38 mi Feb 9 Dec 13
Gonzales, LA 39 mi Feb 21 Dec 5
Plaquemine, LA 40 mi Feb 28 Nov 26
New Iberia, LA 43 mi Feb 10 Dec 11
Addis, LA 46 mi Feb 28 Nov 24

Frequently asked questions

When is the last frost in Morgan City?

On average, the last spring frost (32°F) in Morgan City is around January 30. In about 1 year in 10 it comes after March 5, and in 9 years in 10 it comes after December 30.

When is the first frost in Morgan City?

The first fall frost (32°F) usually arrives around January 1. There’s a 10% chance of a freeze by December 2 and a 90% chance by February 2.

Can it frost in Morgan City 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 15.

What growing zone is Morgan City?

Morgan City 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 70342. See growing zones in Louisiana.

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