Last frost date in Shelton, Connecticut
April 25
Average last frost in spring. In an early year (1 in 10) it's over by April 11; in a late year (1 in 10) it comes after May 10.
October 17
Average first frost in fall. 1 year in 10 it comes by October 4.
Source: NOAA U.S. Climate Normals 1991–2020, station Ansonia 1 NE (USC00060128), 3.9 miles from Shelton, elevation 136 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
This station is also the nearest one for Ansonia and Derby, so their frost dates are the same as Shelton's.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 11 | Apr 25 | May 10 |
| First frost in fall | Oct 4 | Oct 17 | Nov 1 |
Frost-free days in an average year: 175
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 8 | Oct 7 |
| Frost (32°F) | Every year | Apr 25 | Oct 17 |
| Hard freeze (28°F) | Every year | Apr 10 | Oct 30 |
Nights at 32°F or colder in an average year: 130
What to plant now in Shelton
- Spring planting calendar for an average last frost around April 20 Shelton: April 25
- Fall planting calendar for an average first frost around October 20 Shelton: October 17
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
- Bridgeport 9 mi · last frost Apr 5
- New Haven 11 mi · last frost Apr 17
- Naugatuck 13 mi · last frost Apr 18
- Waterbury 18 mi · last frost Apr 26
- Danbury 19 mi · last frost May 1
Updated