Frost dates 2026–2027

Frost dates for Conneaut, Ohio

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Springboro 3 Wnw, 11 mi away (close match).

Last spring frostMay 8
First fall frostOct 16
160 frost-free days
Last spring frostMay 81 year in 10 after May 23
First fall frostOct 161 year in 10 by Oct 1
Growing season160 daysbetween median 32°F dates
Hardiness zoneZone 6b−5 to 0°F average extreme low

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Will it freeze in Conneaut in the next 7 nights?

No overnight lows at or below 32°F are forecast in Conneaut during the next 7 nights in the available NWS frost forecast.

Tonight: forecast low 44°F. Above 36°F.

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

2 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 Conneaut

The median first fall hard-freeze date (28°F) is November 1, from NOAA’s 1991–2020 Climate Normals at Springboro 3 Wnw. 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 2 · May 20 · Jun 1 Sep 17 · Oct 2 · Oct 18 135 days
32°F freeze Apr 23 · May 8 · May 23 Oct 1 · Oct 16 · Nov 2 160 days
28°F hard freeze Apr 9 · Apr 26 · May 14 Oct 13 · Nov 1 · Nov 16 188 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00368361. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Springboro 3 Wnw

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 Conneaut, OH come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Springboro 3 Wnw (station USC00368361, elevation 1,005 ft), 11 mi from Conneaut. 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 Conneaut

CityDistanceLast spring frostFirst fall frost
Ashtabula, OH 12 mi May 2 Oct 21
Geneva, OH 21 mi May 2 Oct 21
Edinboro, PA 23 mi May 7 Oct 10
Erie, PA 29 mi Apr 26 Nov 4
Meadville, PA 29 mi Apr 30 Oct 23
Greenville, PA 37 mi May 4 Oct 14
Painesville, OH 39 mi Apr 15 Nov 9
Chardon, OH 41 mi May 5 Oct 18
Cortland, OH 42 mi Apr 30 Oct 23
Mentor, OH 43 mi Apr 15 Nov 9

Frequently asked questions

When is the last frost in Conneaut?

On average, the last spring frost (32°F) in Conneaut is around May 8. In about 1 year in 10 it comes after May 23, and in 9 years in 10 it comes after April 23.

When is the first frost in Conneaut?

The first fall frost (32°F) usually arrives around October 16. There’s a 10% chance of a freeze by October 1 and a 90% chance by November 2.

Can it frost in Conneaut 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 20.

What growing zone is Conneaut?

Conneaut is in USDA Plant Hardiness Zone 6b (average annual extreme minimum temperature −5 to 0°F), based on the 2023 USDA map for ZIP code 44030. See growing zones in Ohio.

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