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Will it freeze in Fort Mill in the next 7 nights?
No overnight lows at or below 32°F are forecast in Fort Mill during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 62°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 62°F Above 36°F · Chance T-storms
- Fri, Nov 6 50°F Above 36°F · Mostly Clear
- Sat, Nov 7 40°F Above 36°F · Mostly Clear
- Sun, Nov 8 41°F Above 36°F · Mostly Clear
- Mon, Nov 9 41°F Above 36°F · Mostly Clear
- Tue, Nov 10 43°F Above 36°F · Partly Cloudy
- Wed, Nov 11 44°F Above 36°F · Mostly Clear
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 Fort Mill
The median first fall hard-freeze date (28°F) is November 16, from NOAA’s 1991–2020 Climate Normals at Rock Hill York County 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 | Mar 29 · Apr 13 · Apr 28 | Oct 14 · Oct 26 · Nov 7 | 196 days |
| 32°F freeze | Mar 13 · Mar 31 · Apr 15 | Oct 23 · Nov 4 · Nov 19 | 218 days |
| 28°F hard freeze | Feb 27 · Mar 18 · Apr 4 | Nov 1 · Nov 16 · Dec 4 | 243 days |
Average high temperature by month
1991–2020 normals at Rock Hill York County 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 Fort Mill, SC come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Rock Hill York County Airport (station USW00053871, elevation 669 ft), 6.8 mi from Fort Mill. 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 Fort Mill
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Tega Cay, SC | 4.3 mi | Mar 31 | Nov 4 |
| Rock Hill, SC | 6.2 mi | Mar 27 | Nov 5 |
| Pineville, NC | 6.8 mi | Mar 30 | Nov 3 |
| Marvin, NC | 6.8 mi | Mar 31 | Nov 5 |
| Weddington, NC | 12 mi | Mar 31 | Nov 5 |
| Waxhaw, NC | 12 mi | Mar 31 | Nov 5 |
| Wesley Chapel, NC | 14 mi | Mar 31 | Nov 5 |
| Matthews, NC | 15 mi | Mar 31 | Nov 5 |
| Charlotte, NC | 16 mi | Mar 30 | Nov 3 |
| Belmont, NC | 16 mi | Mar 30 | Nov 3 |
Frequently asked questions
When is the last frost in Fort Mill?
On average, the last spring frost (32°F) in Fort Mill is around March 31. In about 1 year in 10 it comes after April 15, and in 9 years in 10 it comes after March 13.
When is the first frost in Fort Mill?
The first fall frost (32°F) usually arrives around November 4. There’s a 10% chance of a freeze by October 23 and a 90% chance by November 19.
Can it frost in Fort Mill 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 13.
What growing zone is Fort Mill?
Fort Mill is in USDA Plant Hardiness Zone 8a (average annual extreme minimum temperature 10 to 15°F), based on the 2023 USDA map for ZIP code 29715. See growing zones in South Carolina.
More: all South Carolina frost dates · South Carolina growing zones · UV index today in Fort Mill · frost vs. freeze