Frost dates 2026–2027

Frost dates for Bulverde, Texas

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Canyon Dam, 16 mi away (close match).

Last spring frostMar 1
First fall frostDec 1
276 frost-free days
Last spring frostMar 11 year in 10 after Mar 22
First fall frostDec 11 year in 10 by Nov 9
Growing season276 daysbetween median 32°F dates
Hardiness zoneZone 8b15 to 20°F average extreme low

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Will it freeze in Bulverde in the next 7 nights?

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

Tonight: forecast low 53°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 Bulverde

The median first fall hard-freeze date (28°F) is December 19, from NOAA’s 1991–2020 Climate Normals at Canyon Dam. 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 21 · Mar 12 · Apr 4 Nov 1 · Nov 16 · Dec 5 249 days
32°F freeze Jan 31 · Mar 1 · Mar 22 Nov 9 · Dec 1 · Dec 26 276 days
28°F hard freeze Jan 4 · Feb 10 · Mar 9 Nov 23 · Dec 19 · Jan 21 311 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00411429. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Canyon Dam

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 Bulverde, TX come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Canyon Dam (station USC00411429, elevation 1,000 ft), 16 mi from Bulverde. 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 Bulverde

CityDistanceLast spring frostFirst fall frost
Fair Oaks Ranch, TX 12 mi Mar 15 Nov 13
Selma, TX 15 mi Feb 21 Dec 5
Live Oak, TX 16 mi Feb 21 Dec 5
Universal City, TX 17 mi Feb 21 Dec 5
Boerne, TX 17 mi Mar 15 Nov 13
Windcrest, TX 18 mi Feb 25 Nov 28
Schertz, TX 18 mi Feb 21 Dec 5
Cibolo, TX 19 mi Feb 21 Dec 5
Converse, TX 20 mi Feb 21 Dec 5
New Braunfels, TX 20 mi Mar 8 Nov 18

Frequently asked questions

When is the last frost in Bulverde?

On average, the last spring frost (32°F) in Bulverde is around March 1. In about 1 year in 10 it comes after March 22, and in 9 years in 10 it comes after January 31.

When is the first frost in Bulverde?

The first fall frost (32°F) usually arrives around December 1. There’s a 10% chance of a freeze by November 9 and a 90% chance by December 26.

Can it frost in Bulverde 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 12.

What growing zone is Bulverde?

Bulverde 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 78163. See growing zones in Texas.

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