Frost dates · 14 cities · zones 6b–7a
Connecticut frost dates, city by city
Median last spring frost across 14 Connecticut cities runs from April 5 in Bridgeport to April 26 in Middletown.
| City | Zone | Last frost median | First frost median | Season | Jan → Dec |
|---|---|---|---|---|---|
| Bridgeport | 7a | Apr 5 | Nov 6 | 216 d | |
| Stamford | 7a | Apr 17 | Oct 23 | 188 d | |
| New Haven | 7a | Apr 17 | Oct 27 | 193 d | |
| Hartford | 6b | Apr 17 | Oct 26 | 191 d | |
| Waterbury | 6b | Apr 26 | Oct 16 | 175 d | |
| Norwalk | 7a | Apr 17 | Oct 23 | 188 d | |
| Danbury | 6b | Apr 20 | Oct 20 | 181 d | |
| New Britain | 6b | Apr 17 | Oct 26 | 191 d | |
| Bristol | 6b | Apr 25 | Oct 18 | 172 d | |
| Meriden | 6b | Apr 26 | Oct 16 | 175 d | |
| West Haven | 7a | Apr 17 | Oct 27 | 193 d | |
| Milford | 7a | Apr 5 | Nov 6 | 216 d | |
| Middletown | 6b | Apr 26 | Oct 16 | 175 d | |
| Shelton | 6b | Apr 5 | Nov 6 | 216 d |
Medians from NOAA NCEI 1991–2020 U.S. Climate Normals at each city's nearest qualifying station; zones from the 2023 USDA Plant Hardiness Zone Map. Open a city for the 1-in-10-year dates, the station, and a planting calendar for every sauce crop.
All states →Build a plan from your ZIP →Earliest: Bridgeport (Apr 5) · Latest: Middletown (Apr 26)