Last frost date in Bristol, Connecticut
April 25
Average last frost in spring. In an early year (1 in 10) it's over by April 12; in a late year (1 in 10) it comes after May 10.
October 18
Average first frost in fall. 1 year in 10 it comes by October 4.
Source: NOAA U.S. Climate Normals 1991–2020, station Burlington (USC00060973), 7.8 miles from Bristol, elevation 505 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 12 | Apr 25 | May 10 |
| First frost in fall | Oct 4 | Oct 18 | Nov 1 |
Frost-free days in an average year: 172
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 6 | Oct 6 |
| Frost (32°F) | Every year | Apr 25 | Oct 18 |
| Hard freeze (28°F) | Every year | Apr 13 | Oct 30 |
Nights at 32°F or colder in an average year: 142
What to plant now in Bristol
- Spring planting calendar for an average last frost around April 20 Bristol: April 25
- Fall planting calendar for an average first frost around October 20 Bristol: October 18
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” tables 4 and 5. How we match the table.
Nearby in Connecticut
- Waterbury 10 mi · last frost Apr 26
- Torrington 14 mi · last frost May 8
- Naugatuck 15 mi · last frost Apr 18
- Hartford 15 mi · last frost Apr 17
- New Haven 26 mi · last frost Apr 17
Updated