Frost dates 2026–2027

Frost dates for Allen, Texas

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Mckinney Municipal Airport, 7.0 mi away (close match).

Last spring frostMar 18
First fall frostNov 11
239 frost-free days
Last spring frostMar 181 year in 10 after Apr 7
First fall frostNov 111 year in 10 by Oct 27
Growing season239 daysbetween median 32°F dates
Hardiness zoneZone 8b15 to 20°F average extreme low

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Will it freeze in Allen in the next 7 nights?

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

Tonight: forecast low 52°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 Allen

The median first fall hard-freeze date (28°F) is November 24, from NOAA’s 1991–2020 Climate Normals at Mckinney Municipal Airport. 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 14 · Apr 3 · Apr 22 Oct 19 · Nov 1 · Nov 18 213 days
32°F freeze Feb 28 · Mar 18 · Apr 7 Oct 27 · Nov 11 · Dec 1 239 days
28°F hard freeze Feb 9 · Mar 4 · Mar 22 Nov 6 · Nov 24 · Dec 14 266 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USW00053914. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Mckinney Municipal Airport

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 Allen, TX come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Mckinney Municipal Airport (station USW00053914, elevation 580 ft), 7.0 mi from Allen. 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 Allen

CityDistanceLast spring frostFirst fall frost
Fairview, TX 4.3 mi Mar 18 Nov 11
Parker, TX 4.3 mi Mar 7 Nov 21
Lucas, TX 5.6 mi Mar 18 Nov 11
Plano, TX 5.6 mi Mar 7 Nov 21
McKinney, TX 6.2 mi Mar 17 Nov 15
Murphy, TX 7.5 mi Mar 10 Nov 19
Frisco, TX 9.3 mi Mar 7 Nov 21
Richardson, TX 9.3 mi Mar 7 Nov 21
Wylie, TX 9.9 mi Mar 10 Nov 19
Princeton, TX 11 mi Mar 18 Nov 11

Frequently asked questions

When is the last frost in Allen?

On average, the last spring frost (32°F) in Allen is around March 18. In about 1 year in 10 it comes after April 7, and in 9 years in 10 it comes after February 28.

When is the first frost in Allen?

The first fall frost (32°F) usually arrives around November 11. There’s a 10% chance of a freeze by October 27 and a 90% chance by December 1.

Can it frost in Allen 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 Allen?

Allen 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 75013. See growing zones in Texas.

More: all Texas frost dates · Texas growing zones · UV index today in Allen · frost vs. freeze