U.S. Frost Dates by Weather Station

NOAA station USC00310286 · North Carolina

Frost Dates for Asheboro, NC

NOAA weather station Asheboro 2 W (USC00310286), North Carolina · elevation 870 ft (265 m) · hardiness zone 8a*

  • Lower-risk planting dateafter April 21only 1 spring in 10 still has a frost later
  • Typical last frostApril 550% chance of a frost after it
  • Typical first fall frostOctober 3150% chance of a frost before it
  • Frost-free season207 daystypical year, 32°F
  • Hardiness zone8acalculated*

The year at a glance

Frost season at Asheboro, NCSpring: a frost after March 18 in 9 years out of 10, after April 5 in half of the years, after April 21 in 1 year out of 10. Fall: the first frost comes before October 18 in 1 year out of 10, before October 31 in half of the years, before November 12 in 9 years out of 10. Typical frost-free season: 207 days.JanFebMarAprMayJunJulAugSepOctNovDecLast frost ~Apr 5First frost ~Oct 31Frost season at Asheboro, NCSpring: a frost after March 18 in 9 years out of 10, after April 5 in half of the years, after April 21 in 1 year out of 10. Fall: the first frost comes before October 18 in 1 year out of 10, before October 31 in half of the years, before November 12 in 9 years out of 10. Typical frost-free season: 207 days.JFMAMJJASONDLast frost ~Apr 5First frost ~Oct 31
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 21October 18
50% (typical)April 5October 31
90% (likely)March 18November 12
Frost-free season (32°F, 50% chance)
207 days
Hard frost (28°F), last in spring, 50% chance after
March 24
Hard frost (28°F), first in fall, 50% chance before
November 10

The last 15 years (2006–2020 normals)

Typical last frost April 7 (2 days later than the 30-year normal), typical first fall frost October 30 (1 day earlier). Frost-free season 206 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 Asheboro: chance of a frost after this dateSpring, chance of a frost after the date: 10% April 21, 20% April 16, 30% April 13, 40% April 9, 50% April 5, 60% April 2, 70% March 30, 80% March 25, 90% March 18. Observed last spring frost in recent years: 2021 April 23, 2022 April 10, 2023 March 21, 2024 March 25, 2025 March 7, 2026 March 19.Spring: last frostChance of a frost after this date10%50%90%Mar 1Apr 1May 1Apr 21Apr 5Mar 182021: April 232022: April 102023: March 212024: March 252025: March 72026: March 19Fall at Asheboro: chance of a frost before this dateFall, chance of a frost before the date: 10% October 18, 20% October 22, 30% October 25, 40% October 28, 50% October 31, 60% November 1, 70% November 4, 80% November 7, 90% November 12. Observed first fall frost in recent years: 2021 November 5, 2022 October 19, 2023 November 2, 2024 November 22, 2025 November 10.Fall: first frostChance of a frost before this date10%50%90%Nov 1Oct 18Oct 31Nov 122021: November 52022: October 192023: November 22024: November 222025: 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 23November 5
2022April 10October 19
2023March 21November 2
2024March 25November 22
2025March 7November 10
2026March 19season not over yet

What these dates mean

October 18 marks the cautious fall date for finishing the harvest in Asheboro, carrying only a 10 % chance that a light frost has arrived earlier. The 50 % date for light frost in fall is October 31, the point where there is a 50 % chance of a frost.

In spring, the cautious date for setting out tender crops is April 21, when there is just a 10 % chance of a later light frost. The median light-frost date is April 5, the point where there is a 50 % chance of a frost. March 18 carries a 90 % risk and is therefore a gamble for early planting.

Hard frosts at 28 °F are more damaging than light frosts at 32 °F because the lower temperature can injure plants that survive milder chills; the 50 % hard-frost dates are March 24 and November 10, the points where a hard frost is equally likely.

How to read the probabilities

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

  • Spring: "10% after April 21" 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 18" 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 Asheboro, NCNumbered nearest stations: 1 — Siler City, NC — 21 mi; 2 — Lexington, NC — 25 mi; 3 — near Greensboro, NC — 27 mi; 4 — Salisbury, NC — 36 mi; 5 — Salisbury 9 WNW, NC — 44 mi.NC25 mi · 40 km1. Siler City, NC — 21 mi12. Lexington, NC — 25 mi23. near Greensboro, NC — 27 mi34. Salisbury, NC — 36 mi45. Salisbury 9 WNW, NC — 44 mi5
  1. Siler City, NC 21 mi (34 km)
  2. Lexington, NC 25 mi (41 km)
  3. near Greensboro, NC 27 mi (44 km)
  4. Salisbury, NC 36 mi (58 km)
  5. Salisbury 9 WNW, NC 44 mi (71 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: 35.7083, -79.8381.