Frost dates 2026–2027

Frost dates for Decatur, Texas

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

Last spring frostMar 20
First fall frostNov 11
237 frost-free days
Last spring frostMar 201 year in 10 after Apr 11
First fall frostNov 111 year in 10 by Oct 25
Growing season237 daysbetween median 32°F dates
Hardiness zoneZone 8a10 to 15°F average extreme low

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Will it freeze in Decatur in the next 7 nights?

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

The median first fall hard-freeze date (28°F) is November 23, from NOAA’s 1991–2020 Climate Normals at Decatur. 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 15 · Apr 3 · Apr 22 Oct 19 · Nov 2 · Nov 18 214 days
32°F freeze Feb 28 · Mar 20 · Apr 11 Oct 25 · Nov 11 · Nov 29 237 days
28°F hard freeze Feb 15 · Mar 6 · Mar 26 Nov 3 · Nov 23 · Dec 10 261 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00412334. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Decatur

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 Decatur, TX come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Decatur (station USC00412334, elevation 970 ft), 2.1 mi from Decatur. 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 Decatur

CityDistanceLast spring frostFirst fall frost
Bridgeport, TX 11 mi Mar 29 Nov 7
Springtown, TX 19 mi Mar 13 Nov 20
Justin, TX 19 mi Mar 12 Nov 17
Krum, TX 21 mi Mar 24 Nov 7
Northlake, TX 22 mi Mar 12 Nov 17
Azle, TX 23 mi Mar 13 Nov 20
Haslet, TX 23 mi Mar 12 Nov 17
Argyle, TX 25 mi Mar 24 Nov 7
Roanoke, TX 25 mi Mar 12 Nov 17
Denton, TX 25 mi Mar 13 Nov 20

Frequently asked questions

When is the last frost in Decatur?

On average, the last spring frost (32°F) in Decatur is around March 20. In about 1 year in 10 it comes after April 11, and in 9 years in 10 it comes after February 28.

When is the first frost in Decatur?

The first fall frost (32°F) usually arrives around November 11. There’s a 10% chance of a freeze by October 25 and a 90% chance by November 29.

Can it frost in Decatur 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 3.

What growing zone is Decatur?

Decatur is in USDA Plant Hardiness Zone 8a (average annual extreme minimum temperature 10 to 15°F), based on the 2023 USDA map for ZIP code 76234. See growing zones in Texas.

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