Frost dates 2026–2027

Frost dates for Glenn Heights, Texas

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Waxahachie, 8.5 mi away (close match).

Last spring frostMar 16
First fall frostNov 16
245 frost-free days
Last spring frostMar 161 year in 10 after Apr 3
First fall frostNov 161 year in 10 by Oct 31
Growing season245 daysbetween median 32°F dates
Hardiness zoneZone 8b15 to 20°F average extreme low

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Will it freeze in Glenn Heights in the next 7 nights?

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

Tonight: forecast low 54°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 Glenn Heights

The median first fall hard-freeze date (28°F) is November 29, from NOAA’s 1991–2020 Climate Normals at Waxahachie. 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 9 · Mar 30 · Apr 15 Oct 24 · Nov 7 · Nov 24 223 days
32°F freeze Feb 26 · Mar 16 · Apr 3 Oct 31 · Nov 16 · Dec 5 245 days
28°F hard freeze Feb 9 · Mar 3 · Mar 20 Nov 8 · Nov 29 · Dec 19 272 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00419522. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Waxahachie

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 Glenn Heights, TX come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Waxahachie (station USC00419522, elevation 626 ft), 8.5 mi from Glenn Heights. 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 Glenn Heights

CityDistanceLast spring frostFirst fall frost
DeSoto, TX 3.1 mi Mar 6 Nov 25
Red Oak, TX 5.0 mi Mar 16 Nov 16
Lancaster, TX 5.6 mi Mar 12 Nov 19
Cedar Hill, TX 6.2 mi Mar 20 Nov 13
Duncanville, TX 7.5 mi Mar 20 Nov 13
Midlothian, TX 9.9 mi Mar 16 Nov 16
Waxahachie, TX 11 mi Mar 16 Nov 16
Hutchins, TX 11 mi Mar 12 Nov 19
Wilmer, TX 11 mi Mar 12 Nov 19
Grand Prairie, TX 13 mi Mar 20 Nov 13

Frequently asked questions

When is the last frost in Glenn Heights?

On average, the last spring frost (32°F) in Glenn Heights is around March 16. In about 1 year in 10 it comes after April 3, and in 9 years in 10 it comes after February 26.

When is the first frost in Glenn Heights?

The first fall frost (32°F) usually arrives around November 16. There’s a 10% chance of a freeze by October 31 and a 90% chance by December 5.

Can it frost in Glenn Heights 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 30.

What growing zone is Glenn Heights?

Glenn Heights 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 75154. See growing zones in Texas.

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