Frost dates 2026–2027

Frost dates for Terrell Hills, Texas

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at San Antonio Incarnate Word, 1.6 mi away (close match).

Last spring frostFeb 25
First fall frostNov 28
277 frost-free days
Last spring frostFeb 251 year in 10 after Mar 19
First fall frostNov 281 year in 10 by Nov 7
Growing season277 daysbetween median 32°F dates
Hardiness zoneZone 9a20 to 25°F average extreme low

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Will it freeze in Terrell Hills in the next 7 nights?

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

Tonight: forecast low 59°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 Terrell Hills

The median first fall hard-freeze date (28°F) is December 15, from NOAA’s 1991–2020 Climate Normals at San Antonio Incarnate Word. 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 18 · Mar 10 · Apr 2 Oct 30 · Nov 16 · Dec 3 251 days
32°F freeze Jan 28 · Feb 25 · Mar 19 Nov 7 · Nov 28 · Dec 21 277 days
28°F hard freeze Dec 31 · Feb 5 · Mar 5 Nov 19 · Dec 15 · Jan 20 315 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00417947. How to read these probabilities.

Average high temperature by month

1991–2020 normals at San Antonio Incarnate Word

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 Terrell Hills, TX come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: San Antonio Incarnate Word (station USC00417947, elevation 700 ft), 1.6 mi from Terrell Hills. 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 Terrell Hills

CityDistanceLast spring frostFirst fall frost
Alamo Heights, TX 1.2 mi Feb 25 Nov 28
Kirby, TX 3.7 mi Feb 25 Nov 28
Windcrest, TX 5.0 mi Feb 25 Nov 28
San Antonio, TX 5.0 mi Feb 25 Nov 28
Live Oak, TX 8.7 mi Feb 21 Dec 5
Converse, TX 8.7 mi Feb 21 Dec 5
Universal City, TX 9.9 mi Feb 21 Dec 5
Leon Valley, TX 9.9 mi Feb 18 Dec 9
Selma, TX 11 mi Feb 21 Dec 5
Schertz, TX 13 mi Feb 21 Dec 5

Frequently asked questions

When is the last frost in Terrell Hills?

On average, the last spring frost (32°F) in Terrell Hills is around February 25. In about 1 year in 10 it comes after March 19, and in 9 years in 10 it comes after January 28.

When is the first frost in Terrell Hills?

The first fall frost (32°F) usually arrives around November 28. There’s a 10% chance of a freeze by November 7 and a 90% chance by December 21.

Can it frost in Terrell Hills 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 10.

What growing zone is Terrell Hills?

Terrell Hills 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 78209. See growing zones in Texas.

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