Frost dates 2026–2027

Frost dates for Sweetwater, Texas

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

Last spring frostMar 30
First fall frostNov 8
223 frost-free days
Last spring frostMar 301 year in 10 after Apr 17
First fall frostNov 81 year in 10 by Oct 26
Growing season223 daysbetween median 32°F dates
Hardiness zoneZone 8a10 to 15°F average extreme low

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Will it freeze in Sweetwater in the next 7 nights?

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

Tonight: forecast low 46°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 Sweetwater

The median first fall hard-freeze date (28°F) is November 18, from NOAA’s 1991–2020 Climate Normals at Roscoe. 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 22 · Apr 8 · Apr 27 Oct 17 · Oct 30 · Nov 12 203 days
32°F freeze Mar 8 · Mar 30 · Apr 17 Oct 26 · Nov 8 · Nov 25 223 days
28°F hard freeze Feb 25 · Mar 16 · Apr 4 Nov 1 · Nov 18 · Dec 4 245 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00417743. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Roscoe

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 Sweetwater, TX come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Roscoe (station USC00417743, elevation 2,380 ft), 7.0 mi from Sweetwater. 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 Sweetwater

CityDistanceLast spring frostFirst fall frost
Snyder, TX 34 mi Mar 27 Nov 10
Abilene, TX 39 mi Mar 20 Nov 10
Big Spring, TX 65 mi Mar 20 Nov 13
San Angelo, TX 71 mi Mar 20 Nov 10
Breckenridge, TX 89 mi Apr 4 Nov 3
Lamesa, TX 92 mi Apr 4 Nov 4
Slaton, TX 99 mi Mar 24 Nov 11
Brownwood, TX 99 mi Mar 22 Nov 10
Midland, TX 104 mi Mar 26 Nov 9
Lubbock, TX 114 mi Mar 24 Nov 11

Frequently asked questions

When is the last frost in Sweetwater?

On average, the last spring frost (32°F) in Sweetwater is around March 30. In about 1 year in 10 it comes after April 17, and in 9 years in 10 it comes after March 8.

When is the first frost in Sweetwater?

The first fall frost (32°F) usually arrives around November 8. There’s a 10% chance of a freeze by October 26 and a 90% chance by November 25.

Can it frost in Sweetwater 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 8.

What growing zone is Sweetwater?

Sweetwater is in USDA Plant Hardiness Zone 8a (average annual extreme minimum temperature 10 to 15°F), based on the 2023 USDA map for ZIP code 79556. See growing zones in Texas.

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