U.S. Frost Dates by Weather Station

NOAA station USC00333029 · Ohio

Frost Dates for Gallipolis, OH

NOAA weather station Gallipolis (USC00333029), Ohio · elevation 578 ft (176 m) · hardiness zone 7a*

  • Lower-risk planting dateafter May 4only 1 spring in 10 still has a frost later
  • Typical last frostApril 1850% chance of a frost after it
  • Typical first fall frostOctober 2850% chance of a frost before it
  • Frost-free season192 daystypical year, 32°F
  • Hardiness zone7acalculated*

The year at a glance

Frost season at Gallipolis, OHSpring: a frost after April 3 in 9 years out of 10, after April 18 in half of the years, after May 4 in 1 year out of 10. Fall: the first frost comes before October 15 in 1 year out of 10, before October 28 in half of the years, before November 8 in 9 years out of 10. Typical frost-free season: 192 days.JanFebMarAprMayJunJulAugSepOctNovDecLast frost ~Apr 18First frost ~Oct 28Frost season at Gallipolis, OHSpring: a frost after April 3 in 9 years out of 10, after April 18 in half of the years, after May 4 in 1 year out of 10. Fall: the first frost comes before October 15 in 1 year out of 10, before October 28 in half of the years, before November 8 in 9 years out of 10. Typical frost-free season: 192 days.JFMAMJJASONDLast frost ~Apr 18First frost ~Oct 28
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)May 4October 15
50% (typical)April 18October 28
90% (likely)April 3November 8
Frost-free season (32°F, 50% chance)
192 days
Hard frost (28°F), last in spring, 50% chance after
April 4
Hard frost (28°F), first in fall, 50% chance before
November 5

The last 15 years (2006–2020 normals)

Typical last frost April 16 (2 days earlier than the 30-year normal), typical first fall frost November 1 (4 days later). Frost-free season 198 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 Gallipolis: chance of a frost after this dateSpring, chance of a frost after the date: 10% May 4, 20% April 28, 30% April 23, 40% April 20, 50% April 18, 60% April 15, 70% April 12, 80% April 7, 90% April 3. Observed last spring frost in recent years: 2021 April 24, 2022 April 21, 2023 April 25, 2024 April 22, 2025 April 14, 2026 May 3.Spring: last frostChance of a frost after this date10%50%90%Apr 1May 1May 4Apr 18Apr 32021: April 242022: April 212023: April 252024: April 222025: April 142026: May 3Fall at Gallipolis: chance of a frost before this dateFall, chance of a frost before the date: 10% October 15, 20% October 20, 30% October 23, 40% October 26, 50% October 28, 60% October 30, 70% November 1, 80% November 3, 90% November 8. Observed first fall frost in recent years: 2021 November 3, 2022 October 9, 2023 November 1, 2024 November 22, 2025 November 7.Fall: first frostChance of a frost before this date10%50%90%Oct 1Nov 1Oct 15Oct 28Nov 82021: November 32022: October 92023: November 12024: November 222025: November 7
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 24November 3
2022April 21October 9
2023April 25November 1
2024April 22November 22
2025April 14November 7
2026May 3season not over yet

What these dates mean

There are 192 days between the 50% light-frost dates of April 18 and October 28 in Gallipolis, and within that span gardeners can time planting and harvest around the recorded risk levels. The 50% date of April 18 represents a 50% chance of a light frost later than this date, while the 50% date of October 28 represents a 50% chance of a light frost earlier than this date; the record spans 29 years.

The cautious spring date for tender crops is May 4, when there is only a 10% chance of a light frost later, whereas planting on April 3 carries a 90% chance and is a gamble. In the fall, the cautious date to finish harvesting tender crops is October 15, with a 10% chance of a light frost earlier, while extending to November 8 involves a 90% chance and is a gamble.

A hard frost at 28 °F can damage plants that survive a light frost at 32 °F, so the hard-frost 50% dates of April 4 and November 5 are important markers.

How to read the probabilities

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

  • Spring: "10% after May 4" 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 15" 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 Gallipolis, OHNumbered nearest stations: 1 — Hogsett RC Byrd Dam, WV — 9 mi; 2 — near Winfield, WV — 25 mi; 3 — Ripley, WV — 25 mi; 4 — South Point, OH — 35 mi; 5 — near Huntington, WV — 37 mi.WVOHKY25 mi · 40 km1. Hogsett RC Byrd Dam, WV — 9 mi12. near Winfield, WV — 25 mi23. Ripley, WV — 25 mi34. South Point, OH — 35 mi45. near Huntington, WV — 37 mi5
  1. Hogsett RC Byrd Dam, WV 9 mi (15 km)
  2. near Winfield, WV 25 mi (40 km)
  3. Ripley, WV 25 mi (41 km)
  4. South Point, OH 35 mi (57 km)
  5. near Huntington, WV 37 mi (60 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: 38.8208, -82.1817.