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Will it freeze in Circleville in the next 7 nights?
No overnight lows at or below 32°F are forecast in Circleville during the next 7 nights in the available NWS frost forecast.
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 · Partly Cloudy
- Fri, Nov 6 36°F Frost possible · Partly Cloudy
- Sat, Nov 7 33°F Frost possible · Partly Cloudy
- Sun, Nov 8 34°F Frost possible · Mostly Clear
- Mon, Nov 9 37°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 Circleville
The median first fall hard-freeze date (28°F) is November 7, from NOAA’s 1991–2020 Climate Normals at Circleville. 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 13 · Apr 28 · May 14 | Oct 4 · Oct 17 · Oct 30 | 171 days |
| 32°F freeze | Apr 2 · Apr 17 · May 4 | Oct 14 · Oct 28 · Nov 9 | 192 days |
| 28°F hard freeze | Mar 20 · Apr 4 · Apr 23 | Oct 26 · Nov 7 · Nov 23 | 216 days |
Average high temperature by month
1991–2020 normals at Circleville
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 Circleville, OH come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Circleville (station USC00331592, elevation 675 ft), 1.4 mi from Circleville. 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 Circleville
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Groveport, OH | 18 mi | Apr 23 | Oct 19 |
| Canal Winchester, OH | 18 mi | Apr 23 | Oct 19 |
| Obetz, OH | 18 mi | Apr 23 | Oct 19 |
| Chillicothe, OH | 18 mi | Apr 20 | Oct 22 |
| Lancaster, OH | 19 mi | Apr 22 | Oct 24 |
| Grove City, OH | 20 mi | Apr 23 | Oct 19 |
| Pickerington, OH | 22 mi | Apr 23 | Oct 19 |
| Bexley, OH | 25 mi | Apr 18 | Oct 27 |
| Whitehall, OH | 25 mi | Apr 18 | Oct 27 |
| Reynoldsburg, OH | 26 mi | Apr 18 | Oct 27 |
Frequently asked questions
When is the last frost in Circleville?
On average, the last spring frost (32°F) in Circleville is around April 17. In about 1 year in 10 it comes after May 4, and in 9 years in 10 it comes after April 2.
When is the first frost in Circleville?
The first fall frost (32°F) usually arrives around October 28. There’s a 10% chance of a freeze by October 14 and a 90% chance by November 9.
Can it frost in Circleville 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 April 28.
What growing zone is Circleville?
Circleville 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 43113. See growing zones in Ohio.
More: all Ohio frost dates · Ohio growing zones · frost vs. freeze