U.S. Frost Dates by Weather Station

NOAA station USC00300183 · New York

Frost Dates for Angelica, NY

NOAA weather station Angelica (USC00300183), New York · elevation 1475 ft (450 m) · hardiness zone 5b*

  • Lower-risk planting dateafter June 6only 1 spring in 10 still has a frost later
  • Typical last frostMay 2150% chance of a frost after it
  • Typical first fall frostSeptember 3050% chance of a frost before it
  • Frost-free season130 daystypical year, 32°F
  • Hardiness zone5bcalculated*

The year at a glance

Frost season at Angelica, NYSpring: a frost after May 2 in 9 years out of 10, after May 21 in half of the years, after June 6 in 1 year out of 10. Fall: the first frost comes before September 14 in 1 year out of 10, before September 30 in half of the years, before October 11 in 9 years out of 10. Typical frost-free season: 130 days.JanFebMarAprMayJunJulAugSepOctNovDecLast frost ~May 21First frost ~Sep 30Frost season at Angelica, NYSpring: a frost after May 2 in 9 years out of 10, after May 21 in half of the years, after June 6 in 1 year out of 10. Fall: the first frost comes before September 14 in 1 year out of 10, before September 30 in half of the years, before October 11 in 9 years out of 10. Typical frost-free season: 130 days.JFMAMJJASONDLast frost ~May 21First frost ~Sep 30
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)June 6September 14
50% (typical)May 21September 30
90% (likely)May 2October 11
Frost-free season (32°F, 50% chance)
130 days
Hard frost (28°F), last in spring, 50% chance after
May 8
Hard frost (28°F), first in fall, 50% chance before
October 9

The last 15 years (2006–2020 normals)

Typical last frost May 17 (4 days earlier than the 30-year normal), typical first fall frost September 30. Frost-free season 134 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 Angelica: chance of a frost after this dateSpring, chance of a frost after the date: 10% June 6, 20% May 31, 30% May 29, 40% May 25, 50% May 21, 60% May 18, 70% May 14, 80% May 9, 90% May 2. Observed last spring frost in recent years: 2021 May 15, 2022 May 10, 2023 May 27, 2024 May 31, 2025 May 10, 2026 May 31.Spring: last frostChance of a frost after this date10%50%90%May 1Jun 1Jun 6May 21May 22021: May 152022: May 102023: May 272024: May 312025: May 102026: May 31Fall at Angelica: chance of a frost before this dateFall, chance of a frost before the date: 10% September 14, 20% September 20, 30% September 24, 40% September 27, 50% September 30, 60% October 1, 70% October 3, 80% October 6, 90% October 11. Observed first fall frost in recent years: 2021 October 19, 2022 October 3, 2023 October 13, 2024 October 6, 2025 October 1.Fall: first frostChance of a frost before this date10%50%90%Sep 1Oct 1Sep 14Sep 30Oct 112021: October 192022: October 32023: October 132024: October 62025: October 1
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
2021May 15October 19
2022May 10October 3
2023May 27October 13
2024May 31October 6
2025May 10October 1
2026May 31season not over yet

What these dates mean

Setting out tender crops on the early spring date, May 2, is a gamble because there is a 90% chance of a frost later than that date. The 50% dates—May 21 in spring and September 30 in fall—mark the point where a light frost is equally likely to have occurred or not yet occurred, giving gardeners a sense of median risk.

A cautious plan for Angelica uses the June 6 date, which carries only a 10% chance of a later frost, for planting tender crops in spring, and the September 14 date, with a 10% chance of an earlier frost, for finishing harvest in fall. Hard frost at 28 °F, marked by the median dates May 8 and October 9, can damage plants more severely than the 32 °F light frost, so its timing is especially important.

How to read the probabilities

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

  • Spring: "10% after June 6" 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 14" 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 Angelica, NYNumbered nearest stations: 1 — Franklinville, NY — 23 mi; 2 — Dansville, NY — 23 mi; 3 — Warsaw, NY — 28 mi; 4 — Hemlock, NY — 38 mi; 5 — near Allegany, NY — 40 mi.NYPA25 mi · 40 km1. Franklinville, NY — 23 mi12. Dansville, NY — 23 mi23. Warsaw, NY — 28 mi34. Hemlock, NY — 38 mi45. near Allegany, NY — 40 mi5
  1. Franklinville, NY 23 mi (36 km)
  2. Dansville, NY 23 mi (38 km)
  3. Warsaw, NY 28 mi (45 km)
  4. Hemlock, NY 38 mi (62 km)
  5. near Allegany, NY 40 mi (64 km)

Sources

* Hardiness zone 5b: zone derived from PRISM 2023 grid at the station location (not the official USDA map). Source data: PRISM Group, Oregon State University.

Station coordinates: 42.3108, -78.0231.