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Will it freeze in Bryan in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Sat, Nov 7: 31°F (Sat, Nov 7, 6:00 PM EST to Sun, Nov 8, 6:00 AM EST).
Tonight: forecast low 41°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 41°F Above 36°F · Cloudy then Rain Showers Likely
- Fri, Nov 6 35°F Frost possible · Mostly Cloudy
- Sat, Nov 7 31°F Freeze · Partly Cloudy
- Sun, Nov 8 34°F Frost possible · Mostly Clear
- Mon, Nov 9 42°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 Bryan
The median first fall hard-freeze date (28°F) is October 28, from NOAA’s 1991–2020 Climate Normals at Bryan 2 SE. 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 6 · May 20 | Sep 22 · Oct 5 · Oct 18 | 152 days |
| 32°F freeze | Apr 14 · Apr 26 · May 11 | Oct 3 · Oct 17 · Oct 30 | 170 days |
| 28°F hard freeze | Apr 4 · Apr 17 · Apr 30 | Oct 16 · Oct 28 · Nov 9 | 193 days |
Average high temperature by month
1991–2020 normals at Bryan 2 SE
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 Bryan, OH come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Bryan 2 SE (station USC00331042, elevation 730 ft), 1.2 mi from Bryan. 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 Bryan
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Defiance, OH | 16 mi | Apr 22 | Oct 24 |
| Wauseon, OH | 22 mi | Apr 29 | Oct 16 |
| Napoleon, OH | 22 mi | Apr 24 | Oct 21 |
| Angola, IN | 27 mi | Apr 30 | Oct 16 |
| Auburn, IN | 27 mi | May 2 | Oct 10 |
| Garrett, IN | 31 mi | Apr 29 | Oct 17 |
| Hillsdale, MI | 32 mi | May 3 | Oct 12 |
| Huntertown, IN | 36 mi | May 2 | Oct 10 |
| Kendallville, IN | 37 mi | Apr 29 | Oct 17 |
| New Haven, IN | 37 mi | Apr 27 | Oct 19 |
Frequently asked questions
When is the last frost in Bryan?
On average, the last spring frost (32°F) in Bryan is around April 26. In about 1 year in 10 it comes after May 11, and in 9 years in 10 it comes after April 14.
When is the first frost in Bryan?
The first fall frost (32°F) usually arrives around October 17. There’s a 10% chance of a freeze by October 3 and a 90% chance by October 30.
Can it frost in Bryan 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 6.
What growing zone is Bryan?
Bryan 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 43506. See growing zones in Ohio.
More: all Ohio frost dates · Ohio growing zones · frost vs. freeze