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Will it freeze in Wooster in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Sat, Nov 7: 32°F (Sat, Nov 7, 6:00 PM EST to Sun, Nov 8, 6:00 AM EST).
Tonight: forecast low 45°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM EST to Fri, Nov 6, 6:00 AM EST.
5 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 45°F Above 36°F · Mostly Cloudy
- Fri, Nov 6 35°F Frost possible · Slight Chance Light Rain
- Sat, Nov 7 32°F Freeze · Slight Chance Light Rain then Mostly Cloudy
- Sun, Nov 8 32°F Freeze · Mostly Clear
- Mon, Nov 9 37°F Above 36°F · Mostly Clear
- Tue, Nov 10 35°F Frost possible · Mostly Clear
- Wed, Nov 11 35°F Frost possible · Partly 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 Wooster
The median first fall hard-freeze date (28°F) is October 24, from NOAA’s 1991–2020 Climate Normals at Wooster Experiment Station. 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 26 · May 12 · May 28 | Sep 21 · Oct 3 · Oct 16 | 141 days |
| 32°F freeze | Apr 17 · Apr 30 · May 18 | Sep 29 · Oct 12 · Oct 26 | 163 days |
| 28°F hard freeze | Apr 5 · Apr 20 · May 5 | Oct 9 · Oct 24 · Nov 9 | 186 days |
Average high temperature by month
1991–2020 normals at Wooster Experiment Station
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 Wooster, OH come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Wooster Experiment Station (station USC00339312, elevation 1,020 ft), 2.6 mi from Wooster. 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 Wooster
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Orrville, OH | 8.1 mi | Apr 29 | Oct 14 |
| Rittman, OH | 13 mi | Apr 29 | Oct 14 |
| Wadsworth, OH | 18 mi | Apr 29 | Oct 19 |
| Canal Fulton, OH | 19 mi | Apr 24 | Oct 26 |
| Ashland, OH | 21 mi | Apr 30 | Oct 15 |
| New Franklin, OH | 21 mi | Apr 24 | Oct 26 |
| Norton, OH | 21 mi | Apr 24 | Oct 28 |
| Massillon, OH | 21 mi | Apr 24 | Oct 26 |
| Barberton, OH | 22 mi | Apr 24 | Oct 28 |
| Medina, OH | 22 mi | Apr 29 | Oct 19 |
Frequently asked questions
When is the last frost in Wooster?
On average, the last spring frost (32°F) in Wooster is around April 30. In about 1 year in 10 it comes after May 18, and in 9 years in 10 it comes after April 17.
When is the first frost in Wooster?
The first fall frost (32°F) usually arrives around October 12. There’s a 10% chance of a freeze by September 29 and a 90% chance by October 26.
Can it frost in Wooster 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 12.
What growing zone is Wooster?
Wooster 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 44691. See growing zones in Ohio.
More: all Ohio frost dates · Ohio growing zones · UV index today in Wooster · frost vs. freeze