U.S. Frost Dates by Weather Station

NOAA station USC00307842 · New York

Frost Dates for Sodus, NY

NOAA weather station Sodus 1 W (USC00307842), New York · elevation 444 ft (135 m) · hardiness zone 6b*

  • Lower-risk planting dateafter May 21only 1 spring in 10 still has a frost later
  • Typical last frostMay 650% chance of a frost after it
  • Typical first fall frostOctober 1050% chance of a frost before it
  • Frost-free season158 daystypical year, 32°F
  • Hardiness zone6bcalculated*

The year at a glance

Frost season at Sodus, NYSpring: a frost after April 24 in 9 years out of 10, after May 6 in half of the years, after May 21 in 1 year out of 10. Fall: the first frost comes before September 27 in 1 year out of 10, before October 10 in half of the years, before October 28 in 9 years out of 10. Typical frost-free season: 158 days.JanFebMarAprMayJunJulAugSepOctNovDecLast frost ~May 6First frost ~Oct 10Frost season at Sodus, NYSpring: a frost after April 24 in 9 years out of 10, after May 6 in half of the years, after May 21 in 1 year out of 10. Fall: the first frost comes before September 27 in 1 year out of 10, before October 10 in half of the years, before October 28 in 9 years out of 10. Typical frost-free season: 158 days.JFMAMJJASONDLast frost ~May 6First frost ~Oct 10
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.Today

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)May 21September 27
50% (typical)May 6October 10
90% (likely)April 24October 28
Frost-free season (32°F, 50% chance)
158 days
Hard frost (28°F), last in spring, 50% chance after
April 25
Hard frost (28°F), first in fall, 50% chance before
October 25

The last 15 years (2006–2020 normals)

Typical last frost May 5 (1 day earlier than the 30-year normal), typical first fall frost October 17 (7 days later). Frost-free season 163 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 Sodus: chance of a frost after this dateSpring, chance of a frost after the date: 10% May 21, 20% May 16, 30% May 13, 40% May 9, 50% May 6, 60% May 3, 70% April 30, 80% April 28, 90% April 24. Observed last spring frost in recent years: 2021 April 27, 2022 May 8, 2023 May 18, 2024 April 26, 2025 April 23, 2026 May 12.Spring: last frostChance of a frost after this date10%50%90%May 1Jun 1May 21May 6Apr 242021: April 272022: May 82023: May 182024: April 262025: April 232026: May 12Fall at Sodus: chance of a frost before this dateFall, chance of a frost before the date: 10% September 27, 20% October 1, 30% October 4, 40% October 7, 50% October 10, 60% October 14, 70% October 17, 80% October 22, 90% October 28. Observed first fall frost in recent years: 2021 November 4, 2022 October 3, 2023 November 1, 2024 October 25, 2025 October 10.Fall: first frostChance of a frost before this date10%50%90%Oct 1Nov 1Sep 27Oct 10Oct 282021: November 42022: October 32023: November 12024: October 252025: October 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 27November 4
2022May 8October 3
2023May 18November 1
2024April 26October 25
2025April 23October 10
2026May 12season not over yet

What these dates mean

Setting out tender crops on the early spring date carries a high risk in Sodus; the April 24 date carries a 90 % chance that a light frost will still occur later that season, making it a gamble. The 50 % median date of May 6 indicates an even-odds point for a frost later than that date, while the cautious date of May 21 reduces the chance to only 10 %.

Gardeners who follow the cautious approach would wait until May 21 to place tender crops outdoors and would aim to finish harvesting tender crops by September 27, the fall cautious date with a 10 % chance of an earlier light frost. The median light-frost dates are May 6 in spring and October 10 in fall, and the 50 % hard-frost dates are April 25 and October 25; a hard frost of 28 °F can damage plants that survive a 32 °F light frost. The record of 27 years shows a 158-day span between the two 32 °F median dates.

How to read the probabilities

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

  • Spring: "10% after May 21" 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 September 27" 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 Sodus, NYNumbered nearest stations: 1 — Geneva, NY — 25 mi; 2 — Canandaigua, NY — 29 mi; 3 — Rochester, NY — 31 mi; 4 — Oswego, NY — 31 mi; 5 — Honeoye, NY — 38 mi.25 mi · 40 km1. Geneva, NY — 25 mi12. Canandaigua, NY — 29 mi23. Rochester, NY — 31 mi34. Oswego, NY — 31 mi45. Honeoye, NY — 38 mi5
  1. Geneva, NY 25 mi (40 km)
  2. Canandaigua, NY 29 mi (46 km)
  3. Rochester, NY 31 mi (50 km)
  4. Oswego, NY 31 mi (50 km)
  5. Honeoye, NY 38 mi (60 km)

Sources

* Hardiness zone 6b: zone derived from PRISM 2023 grid at the station location (not the official USDA map). Source data: PRISM Group, Oregon State University.

Station coordinates: 43.2358, -77.0842.