U.S. Frost Dates by Weather Station

NOAA station USC00085539 · Florida

Frost Dates for Mayo, FL

NOAA weather station Mayo (USC00085539), Florida · elevation 65 ft (20 m) · hardiness zone 9a*

  • Lower-risk planting dateafter April 2only 1 spring in 10 still has a frost later
  • Typical last frostMarch 850% chance of a frost after it
  • Typical first fall frostNovember 2550% chance of a frost before it
  • Frost-free season264 daystypical year, 32°F
  • Hardiness zone9acalculated*

The year at a glance

Frost season at Mayo, FLSpring: a frost after February 8 in 9 years out of 10, after March 8 in half of the years, after April 2 in 1 year out of 10. Fall: the first frost comes before November 5 in 1 year out of 10, before November 25 in half of the years, before December 20 in 9 years out of 10. Typical frost-free season: 264 days.JanFebMarAprMayJunJulAugSepOctNovDecLast frost ~Mar 8First frost ~Nov 25Frost season at Mayo, FLSpring: a frost after February 8 in 9 years out of 10, after March 8 in half of the years, after April 2 in 1 year out of 10. Fall: the first frost comes before November 5 in 1 year out of 10, before November 25 in half of the years, before December 20 in 9 years out of 10. Typical frost-free season: 264 days.JFMAMJJASONDLast frost ~Mar 8First frost ~Nov 25
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 26 years of NOAA records (1991–2020 normals)
ChanceLast frost in spring afterFirst frost in fall before
10% (unlikely)April 2November 5
50% (typical)March 8November 25
90% (likely)February 8December 20
Frost-free season (32°F, 50% chance)
264 days
Hard frost (28°F), last in spring, 50% chance after
February 17
Hard frost (28°F), first in fall, 50% chance before
December 13

The last 15 years (2006–2020 normals)

Typical last frost March 6 (2 days earlier than the 30-year normal), typical first fall frost November 22 (3 days earlier). Frost-free season 262 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 Mayo: chance of a frost after this dateSpring, chance of a frost after the date: 10% April 2, 20% March 25, 30% March 18, 40% March 14, 50% March 8, 60% March 3, 70% February 26, 80% February 19, 90% February 8. Observed last spring frost in recent years: 2021 April 3, 2022 March 13, 2024 February 20, 2025 April 18, 2026 March 19.Spring: last frostChance of a frost after this date10%50%90%Feb 1Mar 1Apr 1Apr 2Mar 8Feb 82021: April 32022: March 132024: February 202025: April 182026: March 19Fall at Mayo: chance of a frost before this dateFall, chance of a frost before the date: 10% November 5, 20% November 11, 30% November 16, 40% November 20, 50% November 25, 60% November 30, 70% December 3, 80% December 8, 90% December 20. Observed first fall frost in recent years: 2023 November 29, 2024 November 23, 2025 November 11.Fall: first frostChance of a frost before this date10%50%90%Nov 1Dec 1Jan 1Nov 5Nov 25Dec 202023: November 292024: November 232025: 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
2021April 3incomplete record
2022March 13incomplete record
2023incomplete recordNovember 29
2024February 20November 23
2025April 18November 11
2026March 19season not over yet

What these dates mean

April 2 is the cautious spring light-frost date, carrying a 10 % chance of frost later; it allows a gardener to put tender crops outdoors with the lowest recorded risk.

The 50% date is March 8, a 50 % chance of a frost later than this date, and the 50% date is November 25, a 50 % chance of a frost earlier than this date. For a conservative schedule the fall cautious light-frost date is November 5, when there is only a 10 % chance that frost has arrived earlier. The hard-frost median dates are February 17 in spring and December 13 in fall.

A hard frost at 28 °F can damage plants that survive a 32 °F light frost, making it a more critical threat.

How to read the probabilities

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

  • Spring: "10% after April 2" 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 Mayo, FLNumbered nearest stations: 1 — Perry, FL — 23 mi; 2 — Jasper, FL — 32 mi; 3 — Tallahassee, FL — 71 mi; 4 — Tifton, GA — 94 mi; 5 — Camilla, GA — 96 mi.GAFL25 mi · 40 km1. Perry, FL — 23 mi12. Jasper, FL — 32 mi23. Tallahassee, FL — 71 mi34. Tifton, GA — 94 mi45. Camilla, GA — 96 mi5
  1. Perry, FL 23 mi (38 km)
  2. Jasper, FL 32 mi (52 km)
  3. Tallahassee, FL 71 mi (115 km)
  4. Tifton, GA 94 mi (152 km)
  5. Camilla, GA 96 mi (155 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: 30.1064, -83.1819.