U.S. Frost Dates by Weather Station

NOAA station USC00013620 · Alabama

Frost Dates for Haleyville, AL

NOAA weather station Haleyville (USC00013620), Alabama · elevation 920 ft (280 m) · hardiness zone 8a*

  • Lower-risk planting dateafter April 16only 1 spring in 10 still has a frost later
  • Typical last frostMarch 2950% chance of a frost after it
  • Typical first fall frostNovember 950% chance of a frost before it
  • Frost-free season228 daystypical year, 32°F
  • Hardiness zone8acalculated*

The year at a glance

Frost season at Haleyville, ALSpring: a frost after March 5 in 9 years out of 10, after March 29 in half of the years, after April 16 in 1 year out of 10. Fall: the first frost comes before October 25 in 1 year out of 10, before November 9 in half of the years, before November 28 in 9 years out of 10. Typical frost-free season: 228 days.JanFebMarAprMayJunJulAugSepOctNovDecLast frost ~Mar 29First frost ~Nov 9Frost season at Haleyville, ALSpring: a frost after March 5 in 9 years out of 10, after March 29 in half of the years, after April 16 in 1 year out of 10. Fall: the first frost comes before October 25 in 1 year out of 10, before November 9 in half of the years, before November 28 in 9 years out of 10. Typical frost-free season: 228 days.JFMAMJJASONDLast frost ~Mar 29First frost ~Nov 9
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 27 years of NOAA records (1991–2020 normals)
ChanceLast frost in spring afterFirst frost in fall before
10% (unlikely)April 16October 25
50% (typical)March 29November 9
90% (likely)March 5November 28
Frost-free season (32°F, 50% chance)
228 days
Hard frost (28°F), last in spring, 50% chance after
March 14
Hard frost (28°F), first in fall, 50% chance before
November 21

The last 15 years (2006–2020 normals)

Typical last frost March 26 (3 days earlier than the 30-year normal), typical first fall frost November 6 (3 days earlier). Frost-free season 225 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 Haleyville: chance of a frost after this dateSpring, chance of a frost after the date: 10% April 16, 20% April 10, 30% April 5, 40% April 1, 50% March 29, 60% March 24, 70% March 19, 80% March 14, 90% March 5. Observed last spring frost in recent years: 2021 April 22, 2022 March 13, 2023 March 21, 2024 March 19, 2025 March 21, 2026 March 18.Spring: last frostChance of a frost after this date10%50%90%Mar 1Apr 1Apr 16Mar 29Mar 52021: April 222022: March 132023: March 212024: March 192025: March 212026: March 18Fall at Haleyville: chance of a frost before this dateFall, chance of a frost before the date: 10% October 25, 20% October 31, 30% November 3, 40% November 5, 50% November 9, 60% November 12, 70% November 16, 80% November 21, 90% November 28. Observed first fall frost in recent years: 2021 November 14, 2022 October 18, 2023 November 1, 2024 November 22, 2025 November 3.Fall: first frostChance of a frost before this date10%50%90%Nov 1Dec 1Oct 25Nov 9Nov 282021: November 142022: October 182023: November 12024: November 222025: November 3
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 22November 14
2022March 13October 18
2023March 21November 1
2024March 19November 22
2025March 21November 3
2026March 18season not over yet

What these dates mean

October 25 is the cautious fall date for finishing the harvest of tender crops in Haleyville, because there is only a 10 % chance a light frost has arrived by then.

In spring the cautious date for setting out tender crops is April 16, when the chance of a light frost later than that date is just 10 %; planting on March 5 carries a 90 % chance of frost and is a gamble. The 50 % dates are March 29 for light frost in spring and November 9 for light frost in fall, each representing an even odds point—there is a 50 % chance of a light frost later than March 29 and a 50 % chance of a light frost earlier than November 9.

A hard frost at 28 °F is more critical than a 32 °F light frost because it can damage plant tissue that survives a milder freeze.

How to read the probabilities

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

  • Spring: "10% after April 16" 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 25" 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 Haleyville, ALNumbered nearest stations: 1 — Hamilton, AL — 22 mi; 2 — Winfield, AL — 25 mi; 3 — Muscle Shoals, AL — 35 mi; 4 — Belle Mina, AL — 53 mi; 5 — Athens, AL — 54 mi.ALMSTN25 mi · 40 km1. Hamilton, AL — 22 mi12. Winfield, AL — 25 mi23. Muscle Shoals, AL — 35 mi34. Belle Mina, AL — 53 mi45. Athens, AL — 54 mi5
  1. Hamilton, AL 22 mi (36 km)
  2. Winfield, AL 25 mi (41 km)
  3. Muscle Shoals, AL 35 mi (57 km)
  4. Belle Mina, AL 53 mi (86 km)
  5. Athens, AL 54 mi (87 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: 34.2314, -87.6353.