When to plant in Storrs, CT
USDA Zone 6bStorrs, Connecticut frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
In zone 6b, Storrs gardeners can grow many hardy perennials, while the last and first frost still dictate the annual vegetable calendar.
Frost probability
STORRS · 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 Storrs’s own odds, recorded at STORRS.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 16 | May 3 | Apr 20 | Sep 29 | Oct 10 | Oct 25 |
| 32°F | May 3 | Apr 19 | Apr 7 | Oct 6 | Oct 22 | Nov 6 |
| 28°F | Apr 19 | Apr 6 | Mar 26 | Oct 19 | Nov 4 | Nov 20 |
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 Storrs, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 17 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.
Storrs planting FAQ
When is the last spring frost in Storrs, CT?
Plan for the last spring frost in Storrs around April 19 (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 Storrs, CT?
In Storrs, the first 32°F freeze of fall lands around October 22 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Storrs in?
Storrs is in USDA hardiness zone 6b. In zone 6b, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Storrs?
Storrs has about 186 frost-free days — a moderate growing season — between the average last spring frost (April 19) and first fall frost (October 22).
When should I plant tomatoes in Storrs?
For Storrs, sow tomatoes indoors about February 22–March 8 and move the seedlings out around April 26, after the last spring frost.
Never miss a window in Storrs
An email when it’s time to start seeds, transplant, and sow — timed to Storrs’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Willimantic · 11 km
- Manchester · 22 km
- East Hartford · 30 km
- Norwich · 32 km
- Southbridge Town · 33 km
- Windsor Locks · 36 km
- Hartford · 36 km
- Wethersfield · 37 km
Frost dates recorded at STORRS, 2 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 Storrs, CT — Frost Dates & Zone 6b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00068138. Retrieved from https://blissgarden.com/connecticut/storrs.