U.S. Frost Dates by Weather Station

NOAA station USC00419175 · Texas

Frost Dates for Tulia, TX

NOAA weather station Tulia (USC00419175), Texas · elevation 3480 ft (1061 m) · hardiness zone 7a*

  • Lower-risk planting dateafter May 1only 1 spring in 10 still has a frost later
  • Typical last frostApril 1850% chance of a frost after it
  • Typical first fall frostOctober 2650% chance of a frost before it
  • Frost-free season189 daystypical year, 32°F
  • Hardiness zone7acalculated*

The year at a glance

Frost season at Tulia, TXSpring: a frost after April 4 in 9 years out of 10, after April 18 in half of the years, after May 1 in 1 year out of 10. Fall: the first frost comes before October 12 in 1 year out of 10, before October 26 in half of the years, before November 6 in 9 years out of 10. Typical frost-free season: 189 days.JanFebMarAprMayJunJulAugSepOctNovDecLast frost ~Apr 18First frost ~Oct 26Frost season at Tulia, TXSpring: a frost after April 4 in 9 years out of 10, after April 18 in half of the years, after May 1 in 1 year out of 10. Fall: the first frost comes before October 12 in 1 year out of 10, before October 26 in half of the years, before November 6 in 9 years out of 10. Typical frost-free season: 189 days.JFMAMJJASONDLast frost ~Apr 18First frost ~Oct 26
frost likely chance fading 90% → 10% frost-free in a typical yearThe year at a glance. Blue: frost is likely; the gradient fades as the chance drops from 90% to 10%; green: the frost-free part of a typical year.

Frost dates (32°F)

Probability of frost, based on 25 years of NOAA records (1991–2020 normals)
ChanceLast frost in spring afterFirst frost in fall before
10% (unlikely)May 1October 12
50% (typical)April 18October 26
90% (likely)April 4November 6
Frost-free season (32°F, 50% chance)
189 days
Hard frost (28°F), last in spring, 50% chance after
April 7
Hard frost (28°F), first in fall, 50% chance before
November 3

The last 15 years (2006–2020 normals)

Typical last frost April 20 (2 days later than the 30-year normal), typical first fall frost October 25 (1 day earlier). Frost-free season 188 days.

A shorter, more recent NOAA period. The 30-year normals above remain the main reference: 15 years carry more year-to-year noise.

Add these dates to your calendar Yearly reminders for the typical last frost, the lower-risk planting date and the typical first fall frost (.ics).

How the chance of frost changes with the date

Spring at Tulia: chance of a frost after this dateSpring, chance of a frost after the date: 10% May 1, 20% April 27, 30% April 24, 40% April 21, 50% April 18, 60% April 15, 70% April 13, 80% April 10, 90% April 4. Observed last spring frost in recent years: 2021 April 22, 2022 April 17, 2023 April 16, 2024 March 28, 2025 April 7, 2026 April 18.Spring: last frostChance of a frost after this date10%50%90%Apr 1May 1May 1Apr 18Apr 42021: April 222022: April 172023: April 162024: March 282025: April 72026: April 18Fall at Tulia: chance of a frost before this dateFall, chance of a frost before the date: 10% October 12, 20% October 17, 30% October 20, 40% October 23, 50% October 26, 60% October 28, 70% October 31, 80% November 3, 90% November 6. Observed first fall frost in recent years: 2021 October 16, 2022 November 5, 2023 October 14, 2024 October 31, 2025 October 29.Fall: first frostChance of a frost before this date10%50%90%Oct 1Nov 1Oct 12Oct 26Nov 62021: October 162022: November 52023: October 142024: October 312025: October 29
Two charts, because spring and fall answer different questions: in spring, the chance that a frost still comes after a date; in fall, the chance that the first frost has already come before it. NOAA publishes these odds from 10% to 90%, so the lines stop there. ◆ marks the actual date in each recent year.

What actually happened in recent years

Observed dates of the last spring and first fall frost (32°F) at this station; ◆ marks them on the charts above
YearLast spring frostFirst fall frost
2021April 22October 16
2022April 17November 5
2023April 16October 14
2024March 28October 31
2025April 7October 29
2026April 18season not over yet

What these dates mean

The cautious fall date for finishing the harvest in Tulia is October 12, when there is only a 10% chance that a light frost has arrived.

The median light-frost dates are April 18 in spring and October 26 in fall; each marks the point at which a light frost is equally likely to occur later (spring) or earlier (fall). The 50% hard-frost dates are April 7 and November 3.

A cautious planting plan uses the May 1 spring date for setting out tender crops and the October 12 fall date for completing their harvest. Hard frost at 28 °F can damage or kill vegetation that can survive a light frost at 32 °F. The 25-year climate record notes 189 days between the April 18 and October 26 median light-frost dates.

How to read the probabilities

The dates are probabilities from 30 years of weather, not a forecast for this year.

  • Spring: "10% after May 1" means that in about one spring out of ten a frost still happens after that date. The 90% date is the earliest: a frost after it happens in most years.
  • Fall: "10% before October 12" means that in about one fall out of ten the first frost arrives before that date.
  • 50% is the typical date: half of the years are earlier, half are later.
  • A light frost (32°F) damages tender plants; a hard frost (28°F) also stops most hardy vegetables.

Nearby weather stations

Map of weather stations near Tulia, TXNumbered nearest stations: 1 — Hart, TX — 24 mi; 2 — Plainview, TX — 25 mi; 3 — Silverton, TX — 27 mi; 4 — Dimmitt, TX — 31 mi; 5 — Hereford, TX — 41 mi.25 mi · 40 km1. Hart, TX — 24 mi12. Plainview, TX — 25 mi23. Silverton, TX — 27 mi34. Dimmitt, TX — 31 mi45. Hereford, TX — 41 mi5
  1. Hart, TX 24 mi (38 km)
  2. Plainview, TX 25 mi (40 km)
  3. Silverton, TX 27 mi (43 km)
  4. Dimmitt, TX 31 mi (51 km)
  5. Hereford, TX 41 mi (66 km)

Sources

* Hardiness zone 7a: zone derived from PRISM 2023 grid at the station location (not the official USDA map). Source data: PRISM Group, Oregon State University.

Station coordinates: 34.5475, -101.7614.