Hardwick, VT frost dates
Last spring frostMay 20median date
First fall frostSep 28median date
Growing season131 daysfrost-free
Hardiness zone4bZone 4b
How Hardwick compares
- In 8 years out of 10, the last spring frost in Hardwick falls between May 6 and June 4, a 29-day window. The first fall frost falls between September 14 and October 10.
- The median last frost is 7 days later than the Vermont median of May 13.
- Its 131-day growing season is longer than 11% of the 286 Vermont places with a regular frost season (state median 143 days).
- The last frost is 12 days later than the zone 4b median of May 8. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 4b chart.
- The weather station records an average of 172 nights a year at or below 32°F.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | May 6 |
| 50% (median) | May 20 |
| 10% (safe for tender plants) | June 4 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | September 14 |
| 50% (median) | September 28 |
| 90% (late) | October 10 |
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 Hardwick, VT
Hardwick, VT frost dates — last frost May 20, first frost Sep 28, zone 4b. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Feb 25 to Mar 11Transplant outside: Apr 22 to May 6
Start indoors: Mar 11 to Mar 25Transplant outside: Jun 3 to Jun 17
Start indoors: Mar 11 to Mar 25Transplant outside: Jun 3 to Jun 17
Start indoors: Mar 25 to Apr 8Transplant outside: May 27 to Jun 10
Start indoors: Mar 25 to Apr 8Transplant outside: Apr 29 to May 13Sow outdoors: Apr 22 to May 27Plant for fall: Aug 3 to Aug 31
Start indoors: Mar 25 to Apr 8Transplant outside: Apr 22 to May 6Sow outdoors: Apr 22 to May 6Plant for fall: Jul 20 to Aug 10
Start indoors: Mar 25 to Apr 8Transplant outside: May 6 to May 20Plant for fall: Jun 22 to Jul 13
Start indoors: Mar 25 to Apr 8Transplant outside: Apr 29 to May 13Plant for fall: Jun 22 to Jul 13
Start indoors: Mar 25 to Apr 8Transplant outside: May 6 to May 20Plant for fall: Jun 22 to Jul 13
Start indoors: Apr 8 to Apr 22Transplant outside: Jun 10 to Jun 24Sow outdoors: Jun 10 to Jun 24
Start indoors: Apr 8 to Apr 22Transplant outside: May 27 to Jun 10
Sow outdoors: Apr 8 to Apr 29Plant for fall: Jul 6 to Jul 27
Sow outdoors: Apr 8 to Apr 29Plant for fall: Aug 3 to Aug 24
Sow outdoors: Apr 15 to May 27Plant for fall: Aug 17 to Sep 7
Start indoors: Apr 22 to Apr 29Transplant outside: Jun 3 to Jun 10Sow outdoors: May 27 to Jun 10Plant for fall: Jul 13 to Jul 27
Start indoors: Apr 22 to Apr 29Sow outdoors: May 27 to Jun 10Plant for fall: Jul 20 to Aug 3
Start indoors: Apr 22 to Apr 29Sow outdoors: May 27 to Jun 10
Start indoors: Apr 22 to Apr 29Transplant outside: Jun 3 to Jun 17
Sow outdoors: Apr 29 to May 27Plant for fall: Jul 6 to Jul 20
Sow outdoors: Apr 29 to May 27Plant for fall: Jul 20 to Aug 3
Sow outdoors: Apr 29 to May 20
Sow outdoors: May 6 to Jun 3Plant for fall: Jul 20 to Aug 3
Sow outdoors: May 6 to May 27Plant for fall: Aug 3 to Aug 24
Sow outdoors: May 27 to Jun 17Plant for fall: Jul 13 to Jul 27
Sow outdoors: May 27 to Jun 10
Transplant outside: Jun 3 to Jun 24
Plant for fall: Sep 14 to Oct 19
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Hardwick, VT
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Feb 25 – Mar 11 | Apr 22 – May 6 | — | — |
| Peppers | Mar 11 – Mar 25 | Jun 3 – Jun 17 | — | — |
| Eggplant | Mar 11 – Mar 25 | Jun 3 – Jun 17 | — | — |
| Tomatoes | Mar 25 – Apr 8 | May 27 – Jun 10 | — | — |
| Lettuce | Mar 25 – Apr 8 | Apr 29 – May 13 | Apr 22 – May 27 | Aug 3 – Aug 31 |
| Kale | Mar 25 – Apr 8 | Apr 22 – May 6 | Apr 22 – May 6 | Jul 20 – Aug 10 |
| Broccoli | Mar 25 – Apr 8 | May 6 – May 20 | — | Jun 22 – Jul 13 |
| Cabbage | Mar 25 – Apr 8 | Apr 29 – May 13 | — | Jun 22 – Jul 13 |
| Cauliflower | Mar 25 – Apr 8 | May 6 – May 20 | — | Jun 22 – Jul 13 |
| Okra | Apr 8 – Apr 22 | Jun 10 – Jun 24 | Jun 10 – Jun 24 | — |
| Basil | Apr 8 – Apr 22 | May 27 – Jun 10 | — | — |
| Peas | — | — | Apr 8 – Apr 29 | Jul 6 – Jul 27 |
| Spinach | — | — | Apr 8 – Apr 29 | Aug 3 – Aug 24 |
| Radishes | — | — | Apr 15 – May 27 | Aug 17 – Sep 7 |
| Cucumbers | Apr 22 – Apr 29 | Jun 3 – Jun 10 | May 27 – Jun 10 | Jul 13 – Jul 27 |
| Zucchini & Summer Squash | Apr 22 – Apr 29 | — | May 27 – Jun 10 | Jul 20 – Aug 3 |
| Winter Squash & Pumpkins | Apr 22 – Apr 29 | — | May 27 – Jun 10 | — |
| Melons & Watermelon | Apr 22 – Apr 29 | Jun 3 – Jun 17 | — | — |
| Carrots | — | — | Apr 29 – May 27 | Jul 6 – Jul 20 |
| Beets | — | — | Apr 29 – May 27 | Jul 20 – Aug 3 |
| Potatoes | — | — | Apr 29 – May 20 | — |
| Swiss Chard | — | — | May 6 – Jun 3 | Jul 20 – Aug 3 |
| Cilantro | — | — | May 6 – May 27 | Aug 3 – Aug 24 |
| Green Beans | — | — | May 27 – Jun 17 | Jul 13 – Jul 27 |
| Sweet Corn | — | — | May 27 – Jun 10 | — |
| Sweet Potatoes | — | Jun 3 – Jun 24 | — | — |
| Garlic | — | — | — | Sep 14 – Oct 19 |
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 Morrisville Stowe State Ap, VT weather station, 20 km away (elevation 732 ft (223 m)).
Frost dates near Hardwick
- East Hardwick May 9 · Oct 1
- Woodbury May 4 · Oct 5
- Greensboro Bend May 9 · Oct 1
- Wolcott May 20 · Sep 28
- Greensboro May 9 · Oct 1
- Cabot May 25 · Sep 22
- West Danville May 13 · Oct 3
- Lake Elmore May 20 · Sep 28
- Craftsbury May 5 · Oct 8
- Calais May 4 · Oct 5
Frequently asked questions
When is the last frost in Hardwick, VT?
The median last spring frost in Hardwick, VT is May 20. There is still about a 10% chance of frost after June 4, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Hardwick, VT?
The median first fall frost is September 28, with about a 10% chance of frost before September 14.
How long is the growing season in Hardwick, VT?
About 131 days between the median last spring frost and first fall frost.
What planting zone is Hardwick, VT?
Hardwick, VT is in USDA hardiness zone 4b.