Frost dates 2026–2027

Frost dates for North Adams, Massachusetts

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

Last spring frostMay 10
First fall frostOct 4
147 frost-free days
Last spring frostMay 101 year in 10 after May 25
First fall frostOct 41 year in 10 by Sep 21
Growing season147 daysbetween median 32°F dates
Hardiness zoneZone 5b−15 to −10°F average extreme low

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Will it freeze in North Adams in the next 7 nights?

The earliest overnight low at or below 32°F in the available NWS frost forecast is Mon, Nov 9: 31°F (Mon, Nov 9, 6:00 PM EST to Tue, Nov 10, 6:00 AM EST).

Tonight: forecast low 48°F. Above 36°F.

NWS forecast period: Fri, Nov 6, 6:00 PM EST to Sat, Nov 7, 6:00 AM EST.

5 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 North Adams

The median first fall hard-freeze date (28°F) is October 17, from NOAA’s 1991–2020 Climate Normals at North Adams Harriman Airport. 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 7 · May 22 · Jun 5 Sep 12 · Sep 25 · Oct 7 124 days
32°F freeze Apr 27 · May 10 · May 25 Sep 21 · Oct 4 · Oct 19 147 days
28°F hard freeze Apr 14 · Apr 30 · May 15 Oct 2 · Oct 17 · Nov 3 170 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USW00054768. How to read these probabilities.

Average high temperature by month

1991–2020 normals at North Adams Harriman Airport

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 North Adams, MA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: North Adams Harriman Airport (station USW00054768, elevation 654 ft), 3.0 mi from North Adams. 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 North Adams

CityDistanceLast spring frostFirst fall frost
Pittsfield, MA 17 mi May 5 Oct 5
Greenfield, MA 27 mi May 1 Oct 11
Troy, NY 29 mi Apr 19 Oct 26
Watervliet, NY 30 mi Apr 19 Oct 26
Cohoes, NY 30 mi Apr 19 Oct 26
Rensselaer, NY 31 mi Apr 19 Oct 26
Mechanicville, NY 33 mi Apr 19 Oct 26
Northampton, MA 33 mi May 5 Oct 8
Albany, NY 35 mi Apr 27 Oct 15
Easthampton, MA 37 mi May 3 Oct 8

Frequently asked questions

When is the last frost in North Adams?

On average, the last spring frost (32°F) in North Adams is around May 10. In about 1 year in 10 it comes after May 25, and in 9 years in 10 it comes after April 27.

When is the first frost in North Adams?

The first fall frost (32°F) usually arrives around October 4. There’s a 10% chance of a freeze by September 21 and a 90% chance by October 19.

Can it frost in North Adams 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 22.

What growing zone is North Adams?

North Adams 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 01247. See growing zones in Massachusetts.

More: all Massachusetts frost dates · Massachusetts growing zones · frost vs. freeze