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Will it freeze in Leesburg in the next 7 nights?
No overnight lows at or below 32°F are forecast in Leesburg during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 58°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 58°F Above 36°F · Chance Rain Showers
- Fri, Nov 6 48°F Above 36°F · Mostly Cloudy
- Sat, Nov 7 43°F Above 36°F · Mostly Clear
- Sun, Nov 8 41°F Above 36°F · Mostly Clear
- Mon, Nov 9 39°F Above 36°F · Mostly Clear
- Tue, Nov 10 41°F Above 36°F · Mostly Clear
- Wed, Nov 11 37°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 Leesburg
The median first fall hard-freeze date (28°F) is November 5, from NOAA’s 1991–2020 Climate Normals at Purcellville. 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 14 · May 1 · May 20 | Sep 29 · Oct 12 · Oct 27 | 165 days |
| 32°F freeze | Mar 31 · Apr 16 · May 7 | Oct 7 · Oct 25 · Nov 7 | 189 days |
| 28°F hard freeze | Mar 20 · Apr 2 · Apr 17 | Oct 21 · Nov 5 · Nov 20 | 215 days |
Average high temperature by month
1991–2020 normals at Purcellville
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 Leesburg, VA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Purcellville (station USC00444909, elevation 510 ft), 8.5 mi from Leesburg. 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 Leesburg
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Poolesville, MD | 8.1 mi | Apr 13 | Oct 26 |
| Purcellville, VA | 8.7 mi | Apr 16 | Oct 25 |
| Herndon, VA | 13 mi | Apr 15 | Oct 24 |
| Brunswick, MD | 15 mi | Apr 26 | Oct 18 |
| Gaithersburg, MD | 20 mi | Apr 1 | Nov 6 |
| Charles Town, WV | 21 mi | Apr 20 | Oct 22 |
| Vienna, VA | 22 mi | Apr 14 | Oct 29 |
| Rockville, MD | 22 mi | Apr 1 | Nov 6 |
| Ranson, WV | 22 mi | Apr 20 | Oct 22 |
| Fairfax, VA | 22 mi | Apr 14 | Oct 29 |
Frequently asked questions
When is the last frost in Leesburg?
On average, the last spring frost (32°F) in Leesburg is around April 16. In about 1 year in 10 it comes after May 7, and in 9 years in 10 it comes after March 31.
When is the first frost in Leesburg?
The first fall frost (32°F) usually arrives around October 25. There’s a 10% chance of a freeze by October 7 and a 90% chance by November 7.
Can it frost in Leesburg 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 Leesburg?
Leesburg is in USDA Plant Hardiness Zone 7b (average annual extreme minimum temperature 5 to 10°F), based on the 2023 USDA map for ZIP code 20175. See growing zones in Virginia.
More: all Virginia frost dates · Virginia growing zones · UV index today in Leesburg · frost vs. freeze