U.S. Frost Dates by Weather Station

NOAA station USW00003870 · South Carolina

Frost Dates for Greer, SC

NOAA weather station Greer (USW00003870), South Carolina · elevation 940 ft (287 m) · hardiness zone 8a*

  • Lower-risk planting dateafter April 14only 1 spring in 10 still has a frost later
  • Typical last frostMarch 2850% chance of a frost after it
  • Typical first fall frostNovember 750% chance of a frost before it
  • Frost-free season224 daystypical year, 32°F
  • Hardiness zone8acalculated*

The year at a glance

Frost season at Greer, SCSpring: a frost after March 10 in 9 years out of 10, after March 28 in half of the years, after April 14 in 1 year out of 10. Fall: the first frost comes before October 26 in 1 year out of 10, before November 7 in half of the years, before November 24 in 9 years out of 10. Typical frost-free season: 224 days.JanFebMarAprMayJunJulAugSepOctNovDecLast frost ~Mar 28First frost ~Nov 7Frost season at Greer, SCSpring: a frost after March 10 in 9 years out of 10, after March 28 in half of the years, after April 14 in 1 year out of 10. Fall: the first frost comes before October 26 in 1 year out of 10, before November 7 in half of the years, before November 24 in 9 years out of 10. Typical frost-free season: 224 days.JFMAMJJASONDLast frost ~Mar 28First frost ~Nov 7
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 14October 26
50% (typical)March 28November 7
90% (likely)March 10November 24
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 20

The last 15 years (2006–2020 normals)

Typical last frost March 26 (2 days earlier than the 30-year normal), typical first fall frost November 7. 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 Greer: chance of a frost after this dateSpring, chance of a frost after the date: 10% April 14, 20% April 7, 30% April 4, 40% April 1, 50% March 28, 60% March 25, 70% March 21, 80% March 17, 90% March 10. Observed last spring frost in recent years: 2021 April 22, 2022 April 10, 2023 March 21, 2024 March 19, 2025 March 7, 2026 March 29.Spring: last frostChance of a frost after this date10%50%90%Mar 1Apr 1Apr 14Mar 28Mar 102021: April 222022: April 102023: March 212024: March 192025: March 72026: March 29Fall at Greer: chance of a frost before this dateFall, chance of a frost before the date: 10% October 26, 20% October 30, 30% November 1, 40% November 5, 50% November 7, 60% November 11, 70% November 13, 80% November 18, 90% November 24. Observed first fall frost in recent years: 2021 November 14, 2022 October 18, 2023 November 1, 2024 November 22, 2025 November 10.Fall: first frostChance of a frost before this date10%50%90%Nov 1Dec 1Oct 26Nov 7Nov 242021: November 142022: October 182023: November 12024: 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 22November 14
2022April 10October 18
2023March 21November 1
2024March 19November 22
2025March 7November 10
2026March 29season not over yet

What these dates mean

Setting out tender crops on the early spring date, March 10, is a gamble because there is a 90 % chance of a light frost later in the season. In Greer the cautious date for planting tender varieties is April 14, when only a 10 % chance of frost remains.

The 50% date for light frost is March 28 in spring and November 7 in fall; at those points the odds of frost are even. The median hard-frost dates are March 15 and November 20, and a hard frost at 28 °F can injure plants that would survive a 32 °F light frost. For finishing tender crops the cautious fall date is October 26, with a 10 % chance that frost has already arrived, while counting on harvests as late as November 24 carries a 90 % gamble. The two 32 °F 50% dates are 224 days apart, based on 27 years of record.

How to read the probabilities

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

  • Spring: "10% after April 14" 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 26" 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 Greer, SCNumbered nearest stations: 1 — Spartanburg, SC — 17 mi; 2 — Tryon, NC — 22 mi; 3 — Caesars Head, SC — 28 mi; 4 — Laurens, SC — 29 mi; 5 — Anderson, SC — 35 mi.NCGA25 mi · 40 km1. Spartanburg, SC — 17 mi12. Tryon, NC — 22 mi23. Caesars Head, SC — 28 mi34. Laurens, SC — 29 mi45. Anderson, SC — 35 mi5
  1. Spartanburg, SC 17 mi (28 km)
  2. Tryon, NC 22 mi (36 km)
  3. Caesars Head, SC 28 mi (45 km)
  4. Laurens, SC 29 mi (46 km)
  5. Anderson, SC 35 mi (56 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: 34.8831, -82.2203.