Last frost date in Danbury, Connecticut
May 1
Average last frost in spring. In an early year (1 in 10) it's over by April 18; in a late year (1 in 10) it comes after May 16.
October 14
Average first frost in fall. 1 year in 10 it comes by October 1.
Source: NOAA U.S. Climate Normals 1991–2020, station Danbury Muni AP (USW00054734), 1.9 miles from Danbury, elevation 457 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 18 | May 1 | May 16 |
| First frost in fall | Oct 1 | Oct 14 | Oct 29 |
Frost-free days in an average year: 166
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 12 | Oct 2 |
| Frost (32°F) | Every year | May 1 | Oct 14 |
| Hard freeze (28°F) | Every year | Apr 18 | Oct 27 |
Nights at 32°F or colder in an average year: 134
What to plant now in Danbury
- Spring planting calendar for an average last frost around April 30 Danbury: May 1
- Fall planting calendar for an average first frost around October 10 Danbury: October 14
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
- Shelton 19 mi · last frost Apr 25
- Bridgeport 21 mi · last frost Apr 5
- Stamford 22 mi · last frost Apr 17
- Naugatuck 23 mi · last frost Apr 18
- Waterbury 25 mi · last frost Apr 26
Updated