Frost dates 2026–2027

Frost dates for Monticello, New York

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Rock Hill 3 SW, 5.7 mi away (close match).

Last spring frostMay 7
First fall frostOct 7
152 frost-free days
Last spring frostMay 71 year in 10 after May 22
First fall frostOct 71 year in 10 by Sep 25
Growing season152 daysbetween median 32°F dates
Hardiness zoneZone 6a−10 to −5°F average extreme low

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Will it freeze in Monticello 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 53°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 Monticello

The median first fall hard-freeze date (28°F) is October 20, from NOAA’s 1991–2020 Climate Normals at Rock Hill 3 SW. 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 3 · May 19 · Jun 1 Sep 15 · Sep 28 · Oct 9 131 days
32°F freeze Apr 25 · May 7 · May 22 Sep 25 · Oct 7 · Oct 22 152 days
28°F hard freeze Apr 15 · Apr 27 · May 10 Oct 4 · Oct 20 · Nov 4 176 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00307210. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Rock Hill 3 SW

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 Monticello, NY come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Rock Hill 3 SW (station USC00307210, elevation 1,270 ft), 5.7 mi from Monticello. 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 Monticello

CityDistanceLast spring frostFirst fall frost
Liberty, NY 11 mi May 9 Oct 5
Port Jervis, NY 19 mi May 5 Oct 10
Middletown, NY 20 mi Apr 21 Oct 22
Goshen, NY 25 mi Apr 21 Oct 22
Walden, NY 27 mi Apr 29 Oct 11
Washingtonville, NY 32 mi May 1 Oct 11
New Paltz, NY 32 mi Apr 21 Oct 27
Warwick, NY 32 mi May 1 Oct 12
Kiryas Joel, NY 35 mi Apr 10 Nov 1
Monroe, NY 35 mi Apr 10 Nov 1

Frequently asked questions

When is the last frost in Monticello?

On average, the last spring frost (32°F) in Monticello is around May 7. In about 1 year in 10 it comes after May 22, and in 9 years in 10 it comes after April 25.

When is the first frost in Monticello?

The first fall frost (32°F) usually arrives around October 7. There’s a 10% chance of a freeze by September 25 and a 90% chance by October 22.

Can it frost in Monticello 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 Monticello?

Monticello 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 12701. See growing zones in New York.

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