Checking current alerts… View NWS forecast and alerts.
Will it freeze in Willoughby in the next 7 nights?
No overnight lows at or below 32°F are forecast in Willoughby 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.
1 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 44°F Above 36°F · Cloudy then Chance Light Rain
- Fri, Nov 6 37°F Above 36°F · Light Rain
- Sat, Nov 7 36°F Frost possible · Chance Light Rain then Mostly Cloudy
- Sun, Nov 8 38°F Above 36°F · Slight Chance Light Rain
- Mon, Nov 9 41°F Above 36°F · Mostly Clear
- Tue, Nov 10 39°F Above 36°F · Mostly Clear
- Wed, Nov 11 37°F Above 36°F · Mostly Cloudy
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 Willoughby
The median first fall hard-freeze date (28°F) is November 10, from NOAA’s 1991–2020 Climate Normals at Kirtland-Holden 2. This is the 50% probability date, not a forecast for this year.
| Temperature | Last 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 23 · May 7 · May 24 | Oct 2 · Oct 17 · Nov 1 | 161 days |
| 32°F freeze | Apr 11 · Apr 26 · May 14 | Oct 15 · Oct 31 · Nov 13 | 184 days |
| 28°F hard freeze | Mar 31 · Apr 16 · Apr 30 | Nov 1 · Nov 10 · Nov 26 | 210 days |
Average high temperature by month
1991–2020 normals at Kirtland-Holden 2
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 Willoughby, OH come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Kirtland-Holden 2 (station USC00334260, elevation 1,030 ft), 6.2 mi from Willoughby. 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 Willoughby
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Eastlake, OH | 1.2 mi | Apr 26 | Oct 31 |
| Willowick, OH | 3.1 mi | Apr 26 | Oct 31 |
| Wickliffe, OH | 3.7 mi | Apr 26 | Oct 31 |
| Willoughby Hills, OH | 4.3 mi | Apr 26 | Oct 31 |
| Mentor, OH | 5.0 mi | Apr 15 | Nov 9 |
| Kirtland, OH | 5.0 mi | Apr 26 | Oct 31 |
| Mentor-on-the-Lake, OH | 5.6 mi | Apr 15 | Nov 9 |
| Euclid, OH | 6.8 mi | Apr 8 | Nov 12 |
| Highland Heights, OH | 6.8 mi | Apr 26 | Oct 31 |
| Richmond Heights, OH | 7.5 mi | Apr 8 | Nov 12 |
Frequently asked questions
When is the last frost in Willoughby?
On average, the last spring frost (32°F) in Willoughby is around April 26. In about 1 year in 10 it comes after May 14, and in 9 years in 10 it comes after April 11.
When is the first frost in Willoughby?
The first fall frost (32°F) usually arrives around October 31. There’s a 10% chance of a freeze by October 15 and a 90% chance by November 13.
Can it frost in Willoughby 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 7.
What growing zone is Willoughby?
Willoughby is in USDA Plant Hardiness Zone 7a (average annual extreme minimum temperature 0 to 5°F), based on the 2023 USDA map for ZIP code 44095. See growing zones in Ohio.
More: all Ohio frost dates · Ohio growing zones · frost vs. freeze