Last frost date in Leesburg, VA
The average last frost in Leesburg is April 16. By May 7 the chance of another 32°F night drops to 1 in 10. The first fall frost usually arrives about October 25, which leaves 189 frost-free days. An early freeze before October 7 happens one year in ten.
- Safe after (10% risk)
- May 7
- Average first frost
- Oct 25
- Frost-free season
- 189 days
- Hard freeze (28°F) ends
- Apr 2
Frost possible in low spots Fri night, low 35°F
National Weather Service forecast, updated Oct 22, 12:57 UTC
- ThuOct 2243°
- FriOct 2335°possible frost
- SatOct 2436°possible frost
- SunOct 2538°
- MonOct 2643°
- TueOct 2746°
- WedOct 2846°
Planting calendar for Leesburg
Windows count forward or back from the average frost dates above. Click a crop for dates across Virginia.
Frost probabilities
| Threshold | Spring, 90% chance later | Spring, 50% | Spring, 10% | Fall, 10% chance earlier | Fall, 50% | Fall, 90% |
|---|---|---|---|---|---|---|
| Light frost, 32°F | Mar 31 | Apr 16 | May 7 | Oct 7 | Oct 25 | Nov 7 |
| Hard freeze, 28°F | Mar 20 | Apr 2 | Apr 17 | Oct 21 | Nov 5 | Nov 20 |
Read the spring 10% column as the date after which only one year in ten still gets frost. That is the safer date for tomatoes, peppers and basil.
Where these numbers come from
NOAA station Purcellville (USC00444909) sits 8.4 miles from the center of Leesburg at 510 feet. Its averages cover 1991 to 2020. Low spots, valleys and open fields can keep getting frost a week or two after the station stops; city centers and lakeshores usually get less of it.
Questions
When is the last frost in Leesburg, VA?
The average last frost date in Leesburg is April 16, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after May 7.
When is the first frost in Leesburg?
The first frost in fall usually comes around October 25. One year in ten it arrives before October 7.
How long is the growing season in Leesburg?
About 189 days between the average last and first frost.
When should I plant tomatoes in Leesburg?
Plant tomato seedlings outside from April 23 to May 7. Start seeds indoors six to eight weeks earlier.
Nearby in Virginia
- AshburnApr 13
- BrambletonApr 13
- SterlingApr 13
- HerndonApr 15
- McNairApr 15
- South RidingApr 15
- RestonApr 14
- ChantillyApr 15
- CentrevilleApr 15
- Fair OaksApr 14
- OaktonApr 14
- TysonsApr 14