Frost dates 2026–2027

Frost dates for Torrington, Connecticut

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Bakersville, 6.3 mi away (close match).

Last spring frostMay 8
First fall frostOct 5
151 frost-free days
Last spring frostMay 81 year in 10 after May 22
First fall frostOct 51 year in 10 by Sep 25
Growing season151 daysbetween median 32°F dates
Hardiness zoneZone 6a−10 to −5°F average extreme low

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Will it freeze in Torrington in the next 7 nights?

The earliest overnight low at or below 32°F in the available NWS frost forecast is Wed, Nov 11: 31°F (Wed, Nov 11, 6:00 PM EST to Thu, Nov 12, 6:00 AM EST).

Tonight: forecast low 59°F. Above 36°F.

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

3 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 Torrington

The median first fall hard-freeze date (28°F) is October 18, from NOAA’s 1991–2020 Climate Normals at Bakersville. 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 4 · May 19 · May 31 Sep 15 · Sep 27 · Oct 7 130 days
32°F freeze Apr 24 · May 8 · May 22 Sep 25 · Oct 5 · Oct 21 151 days
28°F hard freeze Apr 11 · Apr 26 · May 11 Oct 3 · Oct 18 · Nov 4 176 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00060227. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Bakersville

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 Torrington, CT come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Bakersville (station USC00060227, elevation 686 ft), 6.3 mi from Torrington. 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 Torrington

CityDistanceLast spring frostFirst fall frost
Bristol, CT 14 mi Apr 25 Oct 18
Waterbury, CT 20 mi Apr 26 Oct 16
New Britain, CT 21 mi Apr 17 Oct 26
Hartford, CT 24 mi Apr 17 Oct 26
Naugatuck, CT 24 mi Apr 18 Oct 26
Meriden, CT 27 mi Apr 26 Oct 16
Westfield, MA 29 mi May 3 Oct 8
Agawam, MA 29 mi May 3 Oct 8
Middletown, CT 32 mi Apr 26 Oct 16
West Springfield, MA 32 mi May 3 Oct 8

Frequently asked questions

When is the last frost in Torrington?

On average, the last spring frost (32°F) in Torrington is around May 8. In about 1 year in 10 it comes after May 22, and in 9 years in 10 it comes after April 24.

When is the first frost in Torrington?

The first fall frost (32°F) usually arrives around October 5. There’s a 10% chance of a freeze by September 25 and a 90% chance by October 21.

Can it frost in Torrington 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 19.

What growing zone is Torrington?

Torrington 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 06790. See growing zones in Connecticut.

More: all Connecticut frost dates · Connecticut growing zones · UV index today in Torrington · frost vs. freeze