Frost dates 2026–2027

Frost dates for Royse City, Texas

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Lavon Dam, 11 mi away (close match).

Last spring frostMar 10
First fall frostNov 19
254 frost-free days
Last spring frostMar 101 year in 10 after Mar 31
First fall frostNov 191 year in 10 by Nov 1
Growing season254 daysbetween median 32°F dates
Hardiness zoneZone 8b15 to 20°F average extreme low

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Will it freeze in Royse City in the next 7 nights?

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

The median first fall hard-freeze date (28°F) is December 1, from NOAA’s 1991–2020 Climate Normals at Lavon 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 Mar 4 · Mar 26 · Apr 16 Oct 25 · Nov 8 · Nov 25 228 days
32°F freeze Feb 20 · Mar 10 · Mar 31 Nov 1 · Nov 19 · Dec 5 254 days
28°F hard freeze Feb 1 · Feb 26 · Mar 17 Nov 13 · Dec 1 · Dec 22 278 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00415094. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Lavon 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 Royse City, TX come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Lavon Dam (station USC00415094, elevation 510 ft), 11 mi from Royse City. 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 Royse City

CityDistanceLast spring frostFirst fall frost
Fate, TX 4.3 mi Mar 10 Nov 19
Josephine, TX 6.2 mi Mar 10 Nov 19
Lavon, TX 7.5 mi Mar 10 Nov 19
Rockwall, TX 8.1 mi Mar 10 Nov 19
Caddo Mills, TX 8.7 mi Mar 18 Nov 16
McLendon-Chisholm, TX 9.9 mi Mar 11 Nov 18
Heath, TX 12 mi Mar 10 Nov 19
Wylie, TX 12 mi Mar 10 Nov 19
Farmersville, TX 13 mi Mar 10 Nov 19
Rowlett, TX 14 mi Mar 10 Nov 19

Frequently asked questions

When is the last frost in Royse City?

On average, the last spring frost (32°F) in Royse City is around March 10. In about 1 year in 10 it comes after March 31, and in 9 years in 10 it comes after February 20.

When is the first frost in Royse City?

The first fall frost (32°F) usually arrives around November 19. There’s a 10% chance of a freeze by November 1 and a 90% chance by December 5.

Can it frost in Royse City 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 26.

What growing zone is Royse City?

Royse City 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 75189. See growing zones in Texas.

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