U.S. Frost Dates by Weather Station

NOAA station USC00084394 · Florida

Frost Dates for Jasper, FL

NOAA weather station Jasper (USC00084394), Florida · elevation 147 ft (45 m) · hardiness zone 9a*

  • Lower-risk planting dateafter March 30only 1 spring in 10 still has a frost later
  • Typical last frostMarch 1150% chance of a frost after it
  • Typical first fall frostNovember 2250% chance of a frost before it
  • Frost-free season258 daystypical year, 32°F
  • Hardiness zone9acalculated*

The year at a glance

Frost season at Jasper, FLSpring: a frost after February 15 in 9 years out of 10, after March 11 in half of the years, after March 30 in 1 year out of 10. Fall: the first frost comes before November 5 in 1 year out of 10, before November 22 in half of the years, before December 15 in 9 years out of 10. Typical frost-free season: 258 days.JanFebMarAprMayJunJulAugSepOctNovDecLast frost ~Mar 11First frost ~Nov 22Frost season at Jasper, FLSpring: a frost after February 15 in 9 years out of 10, after March 11 in half of the years, after March 30 in 1 year out of 10. Fall: the first frost comes before November 5 in 1 year out of 10, before November 22 in half of the years, before December 15 in 9 years out of 10. Typical frost-free season: 258 days.JFMAMJJASONDLast frost ~Mar 11First frost ~Nov 22
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 29 years of NOAA records (1991–2020 normals)
ChanceLast frost in spring afterFirst frost in fall before
10% (unlikely)March 30November 5
50% (typical)March 11November 22
90% (likely)February 15December 15
Frost-free season (32°F, 50% chance)
258 days
Hard frost (28°F), last in spring, 50% chance after
February 22
Hard frost (28°F), first in fall, 50% chance before
December 7

The last 15 years (2006–2020 normals)

Typical last frost March 10 (1 day earlier than the 30-year normal), typical first fall frost November 19 (3 days earlier). Frost-free season 255 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 Jasper: chance of a frost after this dateSpring, chance of a frost after the date: 10% March 30, 20% March 23, 30% March 19, 40% March 15, 50% March 11, 60% March 7, 70% March 1, 80% February 25, 90% February 15. Observed last spring frost in recent years: 2026 March 19.Spring: last frostChance of a frost after this date10%50%90%Feb 1Mar 1Apr 1Mar 30Mar 11Feb 152026: March 19Fall at Jasper: chance of a frost before this dateFall, chance of a frost before the date: 10% November 5, 20% November 11, 30% November 15, 40% November 18, 50% November 22, 60% November 26, 70% December 1, 80% December 7, 90% December 15. Observed first fall frost in recent years: 2025 November 11.Fall: first frostChance of a frost before this date10%50%90%Nov 1Dec 1Nov 5Nov 22Dec 152025: November 11
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
2021no dataincomplete record
2022incomplete recordincomplete record
2023incomplete recordincomplete record
2024incomplete recordincomplete record
2025incomplete recordNovember 11
2026March 19season not over yet

What these dates mean

Setting out tender crops on the early spring date of February 15 in Jasper carries a 90 % chance of a frost and is therefore a gamble. The cautious spring date for such crops is March 30, when only a 10 % chance of a frost remains. In the fall, counting on tender crops as late as December 15 involves a 90 % chance of a frost and is likewise a gamble, while November 5 is the cautious date with only a 10 % chance.

The 50 % spring date, March 11, marks a point where there is a 50 % chance of a frost later than this date; the 50 % fall date, November 22, indicates a 50 % chance of a frost earlier than this date. The median hard-frost dates are February 22 in spring and December 7 in fall. A hard frost at 28 °F is more damaging than a light frost at 32 °F because it can kill plants that would survive the milder temperature.

How to read the probabilities

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

  • Spring: "10% after March 30" 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 November 5" 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 Jasper, FLNumbered nearest stations: 1 — Mayo, FL — 32 mi; 2 — Perry, FL — 48 mi; 3 — Tifton, GA — 71 mi; 4 — Tallahassee, FL — 83 mi; 5 — Camilla, GA — 88 mi.GAFL25 mi · 40 km1. Mayo, FL — 32 mi12. Perry, FL — 48 mi23. Tifton, GA — 71 mi34. Tallahassee, FL — 83 mi45. Camilla, GA — 88 mi5
  1. Mayo, FL 32 mi (52 km)
  2. Perry, FL 48 mi (77 km)
  3. Tifton, GA 71 mi (115 km)
  4. Tallahassee, FL 83 mi (133 km)
  5. Camilla, GA 88 mi (141 km)

Sources

* Hardiness zone 9a: zone derived from PRISM 2023 grid at the station location (not the official USDA map). Source data: PRISM Group, Oregon State University.

Station coordinates: 30.5228, -82.9447.