U.S. Frost Dates by Weather Station

NOAA station USC00031632 · Arkansas

Frost Dates for Corning, AR

NOAA weather station Corning (USC00031632), Arkansas · elevation 300 ft (91 m) · hardiness zone 7b*

  • Lower-risk planting dateafter April 10only 1 spring in 10 still has a frost later
  • Typical last frostMarch 2750% chance of a frost after it
  • Typical first fall frostNovember 450% chance of a frost before it
  • Frost-free season224 daystypical year, 32°F
  • Hardiness zone7bcalculated*

The year at a glance

Frost season at Corning, ARSpring: a frost after March 10 in 9 years out of 10, after March 27 in half of the years, after April 10 in 1 year out of 10. Fall: the first frost comes before October 22 in 1 year out of 10, before November 4 in half of the years, before November 22 in 9 years out of 10. Typical frost-free season: 224 days.JanFebMarAprMayJunJulAugSepOctNovDecLast frost ~Mar 27First frost ~Nov 4Frost season at Corning, ARSpring: a frost after March 10 in 9 years out of 10, after March 27 in half of the years, after April 10 in 1 year out of 10. Fall: the first frost comes before October 22 in 1 year out of 10, before November 4 in half of the years, before November 22 in 9 years out of 10. Typical frost-free season: 224 days.JFMAMJJASONDLast frost ~Mar 27First frost ~Nov 4
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 10October 22
50% (typical)March 27November 4
90% (likely)March 10November 22
Frost-free season (32°F, 50% chance)
224 days
Hard frost (28°F), last in spring, 50% chance after
March 15
Hard frost (28°F), first in fall, 50% chance before
November 16

The last 15 years (2006–2020 normals)

Typical last frost March 24 (3 days earlier than the 30-year normal), typical first fall frost November 3 (1 day earlier). Frost-free season 224 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 Corning: chance of a frost after this dateSpring, chance of a frost after the date: 10% April 10, 20% April 5, 30% April 1, 40% March 29, 50% March 27, 60% March 23, 70% March 19, 80% March 15, 90% March 10. Observed last spring frost in recent years: 2023 March 20, 2024 April 23, 2025 March 6, 2026 March 17.Spring: last frostChance of a frost after this date10%50%90%Mar 1Apr 1Apr 10Mar 27Mar 102023: March 202024: April 232025: March 62026: March 17Fall at Corning: chance of a frost before this dateFall, chance of a frost before the date: 10% October 22, 20% October 27, 30% October 30, 40% November 1, 50% November 4, 60% November 7, 70% November 10, 80% November 15, 90% November 22. Observed first fall frost in recent years: 2021 November 3, 2022 October 18, 2023 October 31, 2024 November 23, 2025 November 10.Fall: first frostChance of a frost before this date10%50%90%Nov 1Dec 1Oct 22Nov 4Nov 222021: November 32022: October 182023: October 312024: November 232025: 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
2021incomplete recordNovember 3
2022incomplete recordOctober 18
2023March 20October 31
2024April 23November 23
2025March 6November 10
2026March 17season not over yet

What these dates mean

The cautious fall date in Corning for finishing the harvest is October 22, when there is only a 10 % chance that a light frost has arrived earlier. The 50% date is November 4, representing even odds of a frost occurring before or after that day. The median hard-frost date, November 16, marks the point at which a 28 °F frost is equally likely to have happened or not.

In spring, the cautious date for setting out tender crops is April 10, with a 10 % chance of a light frost later than that day, while the 50% date is March 27, the midpoint of frost probability. The 90 % chance date, March 10, is a gamble for early planting. The median hard-frost date, March 15, shows when a 28 °F frost is as likely as not. A hard frost matters more than a light frost because the lower temperature can harm plants that survive a 32 °F event.

How to read the probabilities

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

  • Spring: "10% after April 10" 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 22" 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 Corning, ARNumbered nearest stations: 1 — Pocahontas, AR — 24 mi; 2 — Paragould, AR — 27 mi; 3 — Malden, MO — 35 mi; 4 — Jonesboro, AR — 40 mi; 5 — Keiser, AR — 58 mi.ARMOTNKY25 mi · 40 km1. Pocahontas, AR — 24 mi12. Paragould, AR — 27 mi23. Malden, MO — 35 mi34. Jonesboro, AR — 40 mi45. Keiser, AR — 58 mi5
  1. Pocahontas, AR 24 mi (38 km)
  2. Paragould, AR 27 mi (44 km)
  3. Malden, MO 35 mi (57 km)
  4. Jonesboro, AR 40 mi (64 km)
  5. Keiser, AR 58 mi (93 km)

Sources

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

Station coordinates: 36.4197, -90.5858.