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Will it freeze in Waterville 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 44°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.
- Tonight 44°F Above 36°F · Light Rain Likely
- Fri, Nov 6 37°F Above 36°F · Mostly Cloudy
- Sat, Nov 7 32°F Freeze · Partly Cloudy
- Sun, Nov 8 35°F Frost possible · Mostly Clear
- Mon, Nov 9 40°F Above 36°F · Mostly Clear
- Tue, Nov 10 36°F Frost possible · Mostly Clear
- Wed, Nov 11 36°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 Waterville
The median first fall hard-freeze date (28°F) is November 4, from NOAA’s 1991–2020 Climate Normals at Toledo Express Airport. 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 17 · May 1 · May 16 | Sep 30 · Oct 13 · Oct 26 | 164 days |
| 32°F freeze | Apr 6 · Apr 22 · May 7 | Oct 11 · Oct 24 · Nov 8 | 188 days |
| 28°F hard freeze | Mar 26 · Apr 8 · Apr 25 | Oct 23 · Nov 4 · Nov 20 | 210 days |
Average high temperature by month
1991–2020 normals at Toledo Express Airport
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 Waterville, OH come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Toledo Express Airport (station USW00094830, elevation 669 ft), 6.8 mi from Waterville. 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 Waterville
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Whitehouse, OH | 3.1 mi | Apr 22 | Oct 24 |
| Perrysburg, OH | 5.6 mi | Apr 22 | Oct 24 |
| Maumee, OH | 6.2 mi | Apr 22 | Oct 24 |
| Bowling Green, OH | 9.9 mi | Apr 22 | Oct 25 |
| Rossford, OH | 9.9 mi | Apr 20 | Oct 27 |
| Toledo, OH | 14 mi | Apr 20 | Oct 27 |
| Sylvania, OH | 14 mi | Apr 22 | Oct 24 |
| Northwood, OH | 15 mi | Apr 20 | Oct 27 |
| Oregon, OH | 19 mi | Apr 20 | Oct 27 |
| Wauseon, OH | 21 mi | Apr 29 | Oct 16 |
Frequently asked questions
When is the last frost in Waterville?
On average, the last spring frost (32°F) in Waterville is around April 22. In about 1 year in 10 it comes after May 7, and in 9 years in 10 it comes after April 6.
When is the first frost in Waterville?
The first fall frost (32°F) usually arrives around October 24. There’s a 10% chance of a freeze by October 11 and a 90% chance by November 8.
Can it frost in Waterville 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 1.
What growing zone is Waterville?
Waterville 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 43566. See growing zones in Ohio.
More: all Ohio frost dates · Ohio growing zones · frost vs. freeze