When to plant in Bridgeport, CT
USDA Zone 7aHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Bridgeport, Connecticut — all computed from Bridgeport's nearest NOAA weather station.
Zone 7a means many perennials and even some tender shrubs overwinter in Bridgeport, while your frost dates still decide when annuals go out.
Frost probability
BRIDGEPORT SIKORSKY MEM AP · 1991–2020The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are Bridgeport’s own odds, recorded at BRIDGEPORT SIKORSKY MEM AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 29 | Apr 16 | Apr 6 | Oct 11 | Oct 26 | Nov 8 |
| 32°F | Apr 17 | Apr 5 | Mar 25 | Oct 25 | Nov 6 | Nov 20 |
| 28°F | Apr 6 | Mar 26 | Mar 11 | Nov 6 | Nov 19 | Dec 5 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Full-year planting calendar
Each bar is the exact window to take a planting action in Bridgeport, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 27 km · complete 32°F normalsWhen stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.
Bridgeport planting FAQ
When is the last spring frost in Bridgeport, CT?
Plan for the last spring frost in Bridgeport around April 5 (the date it has a 50% chance of a 32°F freeze). Anything frost-sensitive should go out after it.
When is the first fall frost in Bridgeport, CT?
In Bridgeport, the first 32°F freeze of fall lands around November 6 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Bridgeport in?
Bridgeport is in USDA hardiness zone 7a. In zone 7a, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Bridgeport?
There are roughly 215 frost-free days in Bridgeport (a long growing season), running from the average last frost around April 5 to the first fall frost near November 6.
When should I plant tomatoes in Bridgeport?
In Bridgeport, start tomato seeds indoors around February 8–February 22, then transplant seedlings outdoors around April 12 once the danger of frost has passed.
Never miss a window in Bridgeport
An email when it’s time to start seeds, transplant, and sow — timed to Bridgeport’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Trumbull Center · 6 km
- Milford · 12 km
- Shelton · 14 km
- Orange · 18 km
- Derby · 18 km
- Ansonia · 20 km
- West Haven · 21 km
- Norwalk · 22 km
Frost dates recorded at BRIDGEPORT SIKORSKY MEM AP, 6 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.
BlissGarden. "When to Plant in Bridgeport, CT — Frost Dates & Zone 7a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00094702. Retrieved from https://blissgarden.com/connecticut/bridgeport.