Frost dates for 06408 — Cheshire, CT
Last spring frostApr 18median date
First fall frostOct 26median date
Growing season191 daysfrost-free
Hardiness zone6bZone 6b
How Cheshire compares
- In 8 years out of 10, the last spring frost in Cheshire falls between April 5 and May 3, a 28-day window. The first fall frost falls between October 11 and November 9.
- The median last frost is 3 days earlier than the Connecticut median of Apr 21.
- Its 191-day growing season is longer than 67% of the 267 Connecticut places with a regular frost season (state median 178 days).
- The last frost is 4 days earlier than the zone 6b median of Apr 22. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 6b chart.
- The weather station records an average of 123 nights a year at or below 32°F.
- Cheshire shares its weather station with Hamden, CT, 1 km away, so the two have the same frost dates.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | April 5 |
| 50% (median) | April 18 |
| 10% (safe for tender plants) | May 3 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 11 |
| 50% (median) | October 26 |
| 90% (late) | November 9 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Planting calendar for Cheshire, CT
Frost dates for 06408 — Cheshire, CT — last frost Apr 18, first frost Oct 26, zone 6b. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Jan 24 to Feb 7Transplant outside: Mar 21 to Apr 4
Start indoors: Feb 7 to Feb 21Transplant outside: May 2 to May 16
Start indoors: Feb 7 to Feb 21Transplant outside: May 2 to May 16
Start indoors: Feb 21 to Mar 7Transplant outside: Apr 25 to May 9
Start indoors: Feb 21 to Mar 7Transplant outside: Mar 28 to Apr 11Sow outdoors: Mar 21 to Apr 25Plant for fall: Aug 31 to Sep 28
Start indoors: Feb 21 to Mar 7Transplant outside: Mar 21 to Apr 4Sow outdoors: Mar 21 to Apr 4Plant for fall: Aug 17 to Sep 7
Start indoors: Feb 21 to Mar 7Transplant outside: Apr 4 to Apr 18Plant for fall: Jul 20 to Aug 10
Start indoors: Feb 21 to Mar 7Transplant outside: Mar 28 to Apr 11Plant for fall: Jul 20 to Aug 10
Start indoors: Feb 21 to Mar 7Transplant outside: Apr 4 to Apr 18Plant for fall: Jul 20 to Aug 10
Start indoors: Mar 7 to Mar 21Transplant outside: May 9 to May 23Sow outdoors: May 9 to May 23
Start indoors: Mar 7 to Mar 21Transplant outside: Apr 25 to May 9
Sow outdoors: Mar 7 to Mar 28Plant for fall: Aug 3 to Aug 24
Sow outdoors: Mar 7 to Mar 28Plant for fall: Aug 31 to Sep 21
Sow outdoors: Mar 14 to Apr 25Plant for fall: Sep 14 to Oct 5
Start indoors: Mar 21 to Mar 28Transplant outside: May 2 to May 9Sow outdoors: Apr 25 to May 9Plant for fall: Aug 10 to Aug 24
Start indoors: Mar 21 to Mar 28Sow outdoors: Apr 25 to May 9Plant for fall: Aug 17 to Aug 31
Start indoors: Mar 21 to Mar 28Sow outdoors: Apr 25 to May 9
Start indoors: Mar 21 to Mar 28Transplant outside: May 2 to May 16
Sow outdoors: Mar 28 to Apr 25Plant for fall: Aug 3 to Aug 17
Sow outdoors: Mar 28 to Apr 25Plant for fall: Aug 17 to Aug 31
Sow outdoors: Mar 28 to Apr 18
Sow outdoors: Apr 4 to May 2Plant for fall: Aug 17 to Aug 31
Sow outdoors: Apr 4 to Apr 25Plant for fall: Aug 31 to Sep 21
Sow outdoors: Apr 25 to May 16Plant for fall: Aug 10 to Aug 24
Sow outdoors: Apr 25 to May 9
Transplant outside: May 2 to May 23
Plant for fall: Oct 12 to Nov 16
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Cheshire, CT
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 24 – Feb 7 | Mar 21 – Apr 4 | — | — |
| Peppers | Feb 7 – Feb 21 | May 2 – May 16 | — | — |
| Eggplant | Feb 7 – Feb 21 | May 2 – May 16 | — | — |
| Tomatoes | Feb 21 – Mar 7 | Apr 25 – May 9 | — | — |
| Lettuce | Feb 21 – Mar 7 | Mar 28 – Apr 11 | Mar 21 – Apr 25 | Aug 31 – Sep 28 |
| Kale | Feb 21 – Mar 7 | Mar 21 – Apr 4 | Mar 21 – Apr 4 | Aug 17 – Sep 7 |
| Broccoli | Feb 21 – Mar 7 | Apr 4 – Apr 18 | — | Jul 20 – Aug 10 |
| Cabbage | Feb 21 – Mar 7 | Mar 28 – Apr 11 | — | Jul 20 – Aug 10 |
| Cauliflower | Feb 21 – Mar 7 | Apr 4 – Apr 18 | — | Jul 20 – Aug 10 |
| Okra | Mar 7 – Mar 21 | May 9 – May 23 | May 9 – May 23 | — |
| Basil | Mar 7 – Mar 21 | Apr 25 – May 9 | — | — |
| Peas | — | — | Mar 7 – Mar 28 | Aug 3 – Aug 24 |
| Spinach | — | — | Mar 7 – Mar 28 | Aug 31 – Sep 21 |
| Radishes | — | — | Mar 14 – Apr 25 | Sep 14 – Oct 5 |
| Cucumbers | Mar 21 – Mar 28 | May 2 – May 9 | Apr 25 – May 9 | Aug 10 – Aug 24 |
| Zucchini & Summer Squash | Mar 21 – Mar 28 | — | Apr 25 – May 9 | Aug 17 – Aug 31 |
| Winter Squash & Pumpkins | Mar 21 – Mar 28 | — | Apr 25 – May 9 | — |
| Melons & Watermelon | Mar 21 – Mar 28 | May 2 – May 16 | — | — |
| Carrots | — | — | Mar 28 – Apr 25 | Aug 3 – Aug 17 |
| Beets | — | — | Mar 28 – Apr 25 | Aug 17 – Aug 31 |
| Potatoes | — | — | Mar 28 – Apr 18 | — |
| Swiss Chard | — | — | Apr 4 – May 2 | Aug 17 – Aug 31 |
| Cilantro | — | — | Apr 4 – Apr 25 | Aug 31 – Sep 21 |
| Green Beans | — | — | Apr 25 – May 16 | Aug 10 – Aug 24 |
| Sweet Corn | — | — | Apr 25 – May 9 | — |
| Sweet Potatoes | — | May 2 – May 23 | — | — |
| Garlic | — | — | — | Oct 12 – Nov 16 |
Dates come from the median frost dates and common extension-service timing. Adjust for your soil temperature, microclimate and the varieties you grow.
About these dates
Based on 1991–2020 NOAA climate normals for the Mt Carmel, CT weather station, 5 km away (elevation 180 ft (55 m)).
ZIP codes in Cheshire: 06408 06410 06411
Frost dates near Cheshire
- Hamden Apr 18 · Oct 26
- Wallingford Apr 18 · Oct 26
- New Haven Apr 17 · Oct 27
- North Haven Apr 18 · Oct 26
- Bethany Apr 18 · Oct 26
- West Haven Apr 17 · Oct 27
- Ansonia Apr 25 · Oct 17
- Northford Apr 18 · Oct 26
Frequently asked questions
When is the last frost in Cheshire, CT?
The median last spring frost in Cheshire, CT is April 18. There is still about a 10% chance of frost after May 3, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Cheshire, CT?
The median first fall frost is October 26, with about a 10% chance of frost before October 11.
How long is the growing season in Cheshire, CT?
About 191 days between the median last spring frost and first fall frost.
What planting zone is Cheshire, CT?
Cheshire, CT is in USDA hardiness zone 6b.