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Will it freeze in Summerville in the next 7 nights?
No overnight lows at or below 32°F are forecast in Summerville during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 66°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM EST to Fri, Nov 6, 6:00 AM EST.
No nights at or below 36°F in the National Weather Service forecast for the next 7 nights.
- Tonight 66°F Above 36°F · Mostly Cloudy
- Fri, Nov 6 59°F Above 36°F · Chance Showers And Thunderstorms then Mostly Cloudy
- Sat, Nov 7 47°F Above 36°F · Partly Cloudy
- Sun, Nov 8 45°F Above 36°F · Partly Cloudy
- Mon, Nov 9 45°F Above 36°F · Partly Cloudy then Slight Chance Rain Showers
- Tue, Nov 10 46°F Above 36°F · Partly Cloudy then Slight Chance Rain Showers
- Wed, Nov 11 47°F Above 36°F · 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 Summerville
The median first fall hard-freeze date (28°F) is November 29, from NOAA’s 1991–2020 Climate Normals at Summerville 4W. 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 | Mar 16 · Apr 3 · Apr 19 | Oct 19 · Nov 3 · Nov 18 | 213 days |
| 32°F freeze | Mar 1 · Mar 22 · Apr 7 | Oct 29 · Nov 12 · Dec 3 | 238 days |
| 28°F hard freeze | Feb 10 · Mar 7 · Mar 28 | Nov 7 · Nov 29 · Dec 28 | 265 days |
Average high temperature by month
1991–2020 normals at Summerville 4W
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 Summerville, SC come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Summerville 4W (station USC00388426, elevation 65 ft), 3.7 mi from Summerville. 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 Summerville
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| North Charleston, SC | 8.7 mi | Mar 7 | Nov 27 |
| Goose Creek, SC | 9.9 mi | Mar 7 | Nov 27 |
| Hanahan, SC | 12 mi | Mar 7 | Nov 27 |
| Charleston, SC | 17 mi | Feb 4 | Dec 30 |
| Moncks Corner, SC | 17 mi | Mar 10 | Nov 26 |
| Hollywood, SC | 17 mi | Mar 1 | Dec 6 |
| Mount Pleasant, SC | 23 mi | Mar 13 | Nov 30 |
| James Island, SC | 24 mi | Feb 4 | Dec 30 |
| Walterboro, SC | 30 mi | Mar 19 | Nov 12 |
| Beaufort, SC | 49 mi | Feb 28 | Dec 3 |
Frequently asked questions
When is the last frost in Summerville?
On average, the last spring frost (32°F) in Summerville is around March 22. In about 1 year in 10 it comes after April 7, and in 9 years in 10 it comes after March 1.
When is the first frost in Summerville?
The first fall frost (32°F) usually arrives around November 12. There’s a 10% chance of a freeze by October 29 and a 90% chance by December 3.
Can it frost in Summerville 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 3.
What growing zone is Summerville?
Summerville is in USDA Plant Hardiness Zone 8b (average annual extreme minimum temperature 15 to 20°F), based on the 2023 USDA map for ZIP code 29483. See growing zones in South Carolina.
More: all South Carolina frost dates · South Carolina growing zones · UV index today in Summerville · frost vs. freeze