Frost dates 2026–2027

Frost dates for Hudson, New York

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Hudson Correctional Facility, 0.4 mi away (close match).

Last spring frostApr 25
First fall frostOct 18
176 frost-free days
Last spring frostApr 251 year in 10 after May 10
First fall frostOct 181 year in 10 by Oct 4
Growing season176 daysbetween median 32°F dates
Hardiness zoneZone 6a−10 to −5°F average extreme low

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Will it freeze in Hudson in the next 7 nights?

The earliest overnight low at or below 32°F in the available NWS frost forecast is Wed, Nov 11: 29°F (Wed, Nov 11, 6:00 PM EST to Thu, Nov 12, 6:00 AM EST).

Tonight: forecast low 58°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 Hudson

The median first fall hard-freeze date (28°F) is October 31, from NOAA’s 1991–2020 Climate Normals at Hudson Correctional Facility. 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 Apr 24 · May 5 · May 22 Sep 26 · Oct 7 · Oct 21 153 days
32°F freeze Apr 12 · Apr 25 · May 10 Oct 4 · Oct 18 · Nov 1 176 days
28°F hard freeze Mar 31 · Apr 13 · Apr 28 Oct 14 · Oct 31 · Nov 13 200 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00304025. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Hudson Correctional Facility

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 Hudson, NY come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Hudson Correctional Facility (station USC00304025, elevation 30 ft), 0.4 mi from Hudson. 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 Hudson

CityDistanceLast spring frostFirst fall frost
Kingston, NY 25 mi May 14 Sep 28
Rensselaer, NY 27 mi Apr 19 Oct 26
Albany, NY 29 mi Apr 27 Oct 15
Pittsfield, MA 30 mi May 5 Oct 5
Colonie, NY 32 mi Apr 27 Oct 15
Watervliet, NY 33 mi Apr 19 Oct 26
Troy, NY 34 mi Apr 19 Oct 26
Cohoes, NY 36 mi Apr 19 Oct 26
New Paltz, NY 38 mi Apr 21 Oct 27
Schenectady, NY 39 mi Apr 27 Oct 15

Frequently asked questions

When is the last frost in Hudson?

On average, the last spring frost (32°F) in Hudson is around April 25. In about 1 year in 10 it comes after May 10, and in 9 years in 10 it comes after April 12.

When is the first frost in Hudson?

The first fall frost (32°F) usually arrives around October 18. There’s a 10% chance of a freeze by October 4 and a 90% chance by November 1.

Can it frost in Hudson 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 5.

What growing zone is Hudson?

Hudson is in USDA Plant Hardiness Zone 6a (average annual extreme minimum temperature −10 to −5°F), based on the 2023 USDA map for ZIP code 12534. See growing zones in New York.

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