Frost dates 2026–2027

Frost dates for Hereford, Texas

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Hereford, 0.4 mi away (close match).

Last spring frostApr 17
First fall frostOct 25
189 frost-free days
Last spring frostApr 171 year in 10 after May 1
First fall frostOct 251 year in 10 by Oct 11
Growing season189 daysbetween median 32°F dates
Hardiness zoneZone 7a0 to 5°F average extreme low

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Will it freeze in Hereford in the next 7 nights?

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

Tonight: forecast low 35°F. Frost possible.

NWS forecast period: Thu, Nov 5, 6:00 PM CST to Fri, Nov 6, 6:00 AM CST.

1 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.

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 Hereford

The median first fall hard-freeze date (28°F) is November 4, from NOAA’s 1991–2020 Climate Normals at Hereford. 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 Apr 14 · Apr 27 · May 8 Oct 2 · Oct 17 · Oct 28 170 days
32°F freeze Apr 3 · Apr 17 · May 1 Oct 11 · Oct 25 · Nov 6 189 days
28°F hard freeze Mar 17 · Apr 5 · Apr 22 Oct 22 · Nov 4 · Nov 17 211 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00414098. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Hereford

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 Hereford, TX come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Hereford (station USC00414098, elevation 3,820 ft), 0.4 mi from Hereford. 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 Hereford

CityDistanceLast spring frostFirst fall frost
Canyon, TX 30 mi Apr 15 Oct 25
Amarillo, TX 42 mi Apr 15 Oct 29
Muleshoe, TX 45 mi Apr 22 Oct 20
Clovis, NM 52 mi Apr 14 Oct 29
Plainview, TX 58 mi Apr 6 Nov 2
Littlefield, TX 63 mi Apr 14 Oct 26
Portales, NM 70 mi Apr 15 Oct 26
Dumas, TX 76 mi Apr 21 Oct 24
Tucumcari, NM 78 mi Apr 18 Oct 25
Borger, TX 81 mi Apr 12 Oct 28

Frequently asked questions

When is the last frost in Hereford?

On average, the last spring frost (32°F) in Hereford is around April 17. In about 1 year in 10 it comes after May 1, and in 9 years in 10 it comes after April 3.

When is the first frost in Hereford?

The first fall frost (32°F) usually arrives around October 25. There’s a 10% chance of a freeze by October 11 and a 90% chance by November 6.

Can it frost in Hereford 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 27.

What growing zone is Hereford?

Hereford is in USDA Plant Hardiness Zone 7a (average annual extreme minimum temperature 0 to 5°F), based on the 2023 USDA map for ZIP code 79045. See growing zones in Texas.

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