Frost dates 2026–2027

Frost dates for Oneonta, New York

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Emmons, 3.0 mi away (close match).

Last spring frostMay 17
First fall frostOct 3
141 frost-free days
Last spring frostMay 171 year in 10 after May 30
First fall frostOct 31 year in 10 by Sep 20
Growing season141 daysbetween median 32°F dates
Hardiness zoneZone 5b−15 to −10°F average extreme low

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Will it freeze in Oneonta in the next 7 nights?

The earliest overnight low at or below 32°F in the available NWS frost forecast is Mon, Nov 9: 32°F (Mon, Nov 9, 6:00 PM EST to Tue, Nov 10, 6:00 AM EST).

Tonight: forecast low 51°F. Above 36°F.

NWS forecast period: Thu, Nov 5, 6:00 PM EST to Fri, Nov 6, 6:00 AM EST.

4 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.

Overnight lows from the National Weather Service forecast for this location. This covers the available forecast window, not the first freeze of the whole season. Frost can form above 32°F on clear, calm nights.

Frost and freeze probabilities

Freeze dates shift from year to year. Spring percentages describe the chance of a freeze after the stated date; fall percentages describe the chance of a freeze by that date. The 10% spring date is the cautious one: a later freeze happens about 1 year in 10.

These dates describe historical probabilities, not this year’s forecast or the earliest and latest possible freezes. Different weather stations or probability thresholds can produce different published dates for the same city.

Average first hard freeze in Oneonta

The median first fall hard-freeze date (28°F) is October 16, from NOAA’s 1991–2020 Climate Normals at Emmons. This is the 50% probability date, not a forecast for this year.

TemperatureLast spring date
90% · 50% · 10% chance of a later freeze
First fall date
10% · 50% · 90% chance of an earlier freeze
Season
36°F frost possible May 14 · May 29 · Jun 10 Sep 10 · Sep 22 · Oct 3 117 days
32°F freeze Apr 30 · May 17 · May 30 Sep 20 · Oct 3 · Oct 18 141 days
28°F hard freeze Apr 21 · May 4 · May 19 Oct 1 · Oct 16 · Nov 3 164 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00305113. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Emmons

Average low temperature by month

Months with lows near or below freezing carry frost risk

Where these frost dates come from

The frost dates for Oneonta, NY come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Emmons (station USC00305113, elevation 1,225 ft), 3.0 mi from Oneonta. Local conditions (valleys, hilltops, distance to water, city heat) can shift frost dates by days or weeks. The hardiness zone is from the 2023 USDA Plant Hardiness Zone Map (USDA ARS and Oregon State University PRISM). See our methodology.

Frost dates near Oneonta

CityDistanceLast spring frostFirst fall frost
Norwich, NY 24 mi May 13 Oct 4
Ilion, NY 39 mi May 5 Oct 4
Herkimer, NY 40 mi May 5 Oct 4
Utica, NY 45 mi May 1 Oct 13
Liberty, NY 48 mi May 9 Oct 5
Binghamton, NY 50 mi May 2 Oct 11
Johnson City, NY 51 mi May 2 Oct 11
Johnstown, NY 52 mi May 11 Oct 3
Oneida, NY 52 mi May 1 Oct 13
Gloversville, NY 55 mi May 11 Oct 3

Frequently asked questions

When is the last frost in Oneonta?

On average, the last spring frost (32°F) in Oneonta is around May 17. In about 1 year in 10 it comes after May 30, and in 9 years in 10 it comes after April 30.

When is the first frost in Oneonta?

The first fall frost (32°F) usually arrives around October 3. There’s a 10% chance of a freeze by September 20 and a 90% chance by October 18.

Can it frost in Oneonta after the last frost date?

Yes. Frost can form on clear, calm nights even when the air stays above 32°F. Temperatures of 36°F or lower, cold enough for frost on exposed plants, have a 50% chance of occurring after May 29.

What growing zone is Oneonta?

Oneonta is in USDA Plant Hardiness Zone 5b (average annual extreme minimum temperature −15 to −10°F), based on the 2023 USDA map for ZIP code 13820. See growing zones in New York.

More: all New York frost dates · New York growing zones · frost vs. freeze