U.S. Frost Dates by Weather Station

NOAA station USC00090969 · Georgia

Frost Dates for Blairsville, GA

NOAA weather station Blairsville Experiment Station (USC00090969), Georgia · elevation 1949 ft (594 m) · hardiness zone 7a*

  • Lower-risk planting dateafter May 11only 1 spring in 10 still has a frost later
  • Typical last frostApril 2650% chance of a frost after it
  • Typical first fall frostOctober 1950% chance of a frost before it
  • Frost-free season176 daystypical year, 32°F
  • Hardiness zone7acalculated*

The year at a glance

Frost season at Blairsville, GASpring: a frost after April 8 in 9 years out of 10, after April 26 in half of the years, after May 11 in 1 year out of 10. Fall: the first frost comes before October 7 in 1 year out of 10, before October 19 in half of the years, before November 1 in 9 years out of 10. Typical frost-free season: 176 days.JanFebMarAprMayJunJulAugSepOctNovDecLast frost ~Apr 26First frost ~Oct 19Frost season at Blairsville, GASpring: a frost after April 8 in 9 years out of 10, after April 26 in half of the years, after May 11 in 1 year out of 10. Fall: the first frost comes before October 7 in 1 year out of 10, before October 19 in half of the years, before November 1 in 9 years out of 10. Typical frost-free season: 176 days.JFMAMJJASONDLast frost ~Apr 26First frost ~Oct 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)May 11October 7
50% (typical)April 26October 19
90% (likely)April 8November 1
Frost-free season (32°F, 50% chance)
176 days
Hard frost (28°F), last in spring, 50% chance after
April 12
Hard frost (28°F), first in fall, 50% chance before
October 28

The last 15 years (2006–2020 normals)

Typical last frost April 25 (1 day earlier than the 30-year normal), typical first fall frost October 21 (2 days later). Frost-free season 178 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 Blairsville: chance of a frost after this dateSpring, chance of a frost after the date: 10% May 11, 20% May 6, 30% May 2, 40% April 30, 50% April 26, 60% April 22, 70% April 18, 80% April 14, 90% April 8. Observed last spring frost in recent years: 2021 April 23, 2022 April 20, 2023 May 1, 2024 April 24, 2025 April 17, 2026 April 21.Spring: last frostChance of a frost after this date10%50%90%Apr 1May 1May 11Apr 26Apr 82021: April 232022: April 202023: May 12024: April 242025: April 172026: April 21Fall at Blairsville: chance of a frost before this dateFall, chance of a frost before the date: 10% October 7, 20% October 11, 30% October 14, 40% October 16, 50% October 19, 60% October 22, 70% October 25, 80% October 28, 90% November 1. Observed first fall frost in recent years: 2021 October 18, 2022 September 29, 2023 October 9, 2024 October 17, 2025 October 24.Fall: first frostChance of a frost before this date10%50%90%Oct 1Nov 1Oct 7Oct 19Nov 12021: October 182022: September 292023: October 92024: October 172025: October 24
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 23October 18
2022April 20September 29
2023May 1October 9
2024April 24October 17
2025April 17October 24
2026April 21season not over yet

What these dates mean

Setting out tender crops on April 8 in Blairsville is a gamble, because there is a 90 % chance of a light frost later than that date. The cautious spring date for tender crops is May 11, when only a 10 % chance of a frost remains.

The 50 % light-frost date is April 26, indicating an even-odds chance of a frost later than that day. In the fall, the cautious date to finish harvesting tender crops is October 7, with a 10 % chance of a frost already having occurred, while November 1 carries a 90 % chance of a frost earlier, making it a gamble. The 50 % light-frost date in autumn is October 19, representing an even-odds chance of a frost earlier than that day.

The 50 % hard-frost dates are April 12 in spring and October 28 in fall; hard frosts at 28 °F can damage plants more severely than light frosts at 32 °F, so they pose a greater threat.

How to read the probabilities

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

  • Spring: "10% after May 11" 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 7" 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 Blairsville, GANumbered nearest stations: 1 — Helen, GA — 16 mi; 2 — Cornelia, GA — 33 mi; 3 — Franklin, NC — 38 mi; 4 — Gainesville, GA — 39 mi; 5 — Jasper, GA — 39 mi.GATNSC25 mi · 40 km1. Helen, GA — 16 mi12. Cornelia, GA — 33 mi23. Franklin, NC — 38 mi34. Gainesville, GA — 39 mi45. Jasper, GA — 39 mi5
  1. Helen, GA 16 mi (26 km)
  2. Cornelia, GA 33 mi (53 km)
  3. Franklin, NC 38 mi (62 km)
  4. Gainesville, GA 39 mi (62 km)
  5. Jasper, GA 39 mi (62 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: 34.8544, -83.9444.