U.S. Frost Dates by Weather Station

NOAA station USC00418274 · Texas

Frost Dates for Sherman, TX

NOAA weather station Sherman (USC00418274), Texas · elevation 760 ft (232 m) · hardiness zone 8a*

  • Lower-risk planting dateafter April 1only 1 spring in 10 still has a frost later
  • Typical last frostMarch 1450% chance of a frost after it
  • Typical first fall frostNovember 1950% chance of a frost before it
  • Frost-free season250 daystypical year, 32°F
  • Hardiness zone8acalculated*

The year at a glance

Frost season at Sherman, TXSpring: a frost after February 25 in 9 years out of 10, after March 14 in half of the years, after April 1 in 1 year out of 10. Fall: the first frost comes before November 2 in 1 year out of 10, before November 19 in half of the years, before December 6 in 9 years out of 10. Typical frost-free season: 250 days.JanFebMarAprMayJunJulAugSepOctNovDecLast frost ~Mar 14First frost ~Nov 19Frost season at Sherman, TXSpring: a frost after February 25 in 9 years out of 10, after March 14 in half of the years, after April 1 in 1 year out of 10. Fall: the first frost comes before November 2 in 1 year out of 10, before November 19 in half of the years, before December 6 in 9 years out of 10. Typical frost-free season: 250 days.JFMAMJJASONDLast frost ~Mar 14First frost ~Nov 19
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 30 years of NOAA records (1991–2020 normals)
ChanceLast frost in spring afterFirst frost in fall before
10% (unlikely)April 1November 2
50% (typical)March 14November 19
90% (likely)February 25December 6
Frost-free season (32°F, 50% chance)
250 days
Hard frost (28°F), last in spring, 50% chance after
March 2
Hard frost (28°F), first in fall, 50% chance before
November 30

The last 15 years (2006–2020 normals)

Typical last frost March 15 (1 day later than the 30-year normal), typical first fall frost November 20 (1 day later). Frost-free season 251 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 Sherman: chance of a frost after this dateSpring, chance of a frost after the date: 10% April 1, 20% March 27, 30% March 22, 40% March 18, 50% March 14, 60% March 10, 70% March 6, 80% March 2, 90% February 25. Observed last spring frost in recent years: 2021 April 21, 2022 March 12, 2023 March 19, 2024 February 29, 2026 February 23.Spring: last frostChance of a frost after this date10%50%90%Mar 1Apr 1Apr 1Mar 14Feb 252021: April 212022: March 122023: March 192024: February 292026: February 23Fall at Sherman: chance of a frost before this dateFall, chance of a frost before the date: 10% November 2, 20% November 8, 30% November 12, 40% November 16, 50% November 19, 60% November 22, 70% November 26, 80% December 1, 90% December 6. Observed first fall frost in recent years: 2021 November 26, 2022 November 12, 2023 October 31, 2024 November 29, 2025 November 10.Fall: first frostChance of a frost before this date10%50%90%Nov 1Dec 1Nov 2Nov 19Dec 62021: November 262022: November 122023: October 312024: November 292025: November 10
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 21November 26
2022March 12November 12
2023March 19October 31
2024February 29November 29
2025incomplete recordNovember 10
2026February 23season not over yet

What these dates mean

The 250 days between the 32°F 50% dates in Sherman frame the span when light frosts are equally likely before or after the median points. The 50% date for spring light frost is March 14 and the 50% date for fall light frost is November 19; a gardener can view these as the midpoint of the frost probability window.

For a cautious planting schedule, the spring cautious date is April 1, when there is only a 10% chance of a later light frost, and the fall cautious date is November 2, when there is only a 10% chance that a light frost has already arrived. The hard-frost 50% dates are March 2 in spring and November 30 in fall, and a hard frost at 28 °F can damage or kill tender plants more severely than a light frost at 32 °F.

How to read the probabilities

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

  • Spring: "10% after April 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 November 2" 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 Sherman, TXNumbered nearest stations: 1 — Gainesville, TX — 24 mi; 2 — Madill, OK — 28 mi; 3 — Denton, TX — 44 mi; 4 — near Greenville, TX — 48 mi; 5 — Healdton, OK — 58 mi.TX25 mi · 40 km1. Gainesville, TX — 24 mi12. Madill, OK — 28 mi23. Denton, TX — 44 mi34. near Greenville, TX — 48 mi45. Healdton, OK — 58 mi5
  1. Gainesville, TX 24 mi (39 km)
  2. Madill, OK 28 mi (45 km)
  3. Denton, TX 44 mi (71 km)
  4. near Greenville, TX 48 mi (78 km)
  5. Healdton, OK 58 mi (93 km)

Sources

* Hardiness zone 8a: zone derived from PRISM 2023 grid at the station location (not the official USDA map). Source data: PRISM Group, Oregon State University.

Station coordinates: 33.7033, -96.6419.