Frost dates 2026–2027

Frost dates for Plano, Texas

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Richardson, 3.8 mi away (close match).

Last spring frostMar 7
First fall frostNov 21
259 frost-free days
Last spring frostMar 71 year in 10 after Mar 29
First fall frostNov 211 year in 10 by Nov 2
Growing season259 daysbetween median 32°F dates
Hardiness zoneZone 8b15 to 20°F average extreme low

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Will it freeze in Plano in the next 7 nights?

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

The median first fall hard-freeze date (28°F) is December 4, from NOAA’s 1991–2020 Climate Normals at Richardson. 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 2 · Mar 21 · Apr 11 Oct 23 · Nov 10 · Nov 27 233 days
32°F freeze Feb 18 · Mar 7 · Mar 29 Nov 2 · Nov 21 · Dec 9 259 days
28°F hard freeze Jan 27 · Feb 24 · Mar 12 Nov 14 · Dec 4 · Dec 26 288 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00417588. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Richardson

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 Plano, TX come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Richardson (station USC00417588, elevation 678 ft), 3.8 mi from Plano. 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 Plano

CityDistanceLast spring frostFirst fall frost
Allen, TX 5.6 mi Mar 18 Nov 11
Richardson, TX 5.6 mi Mar 7 Nov 21
Parker, TX 6.8 mi Mar 7 Nov 21
Addison, TX 8.1 mi Mar 7 Nov 21
Frisco, TX 8.7 mi Mar 7 Nov 21
Murphy, TX 8.7 mi Mar 10 Nov 19
The Colony, TX 9.3 mi Mar 7 Nov 21
Carrollton, TX 9.9 mi Mar 7 Nov 21
Fairview, TX 9.9 mi Mar 18 Nov 11
Lucas, TX 11 mi Mar 18 Nov 11

Frequently asked questions

When is the last frost in Plano?

On average, the last spring frost (32°F) in Plano is around March 7. In about 1 year in 10 it comes after March 29, and in 9 years in 10 it comes after February 18.

When is the first frost in Plano?

The first fall frost (32°F) usually arrives around November 21. There’s a 10% chance of a freeze by November 2 and a 90% chance by December 9.

Can it frost in Plano 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 21.

What growing zone is Plano?

Plano 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 75023. See growing zones in Texas.

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