Last and first frost dates in Burlington

When is the last frost in Burlington?

The last frost in Burlington usually comes around 22 April: that is the median of 2016–2025, so in about half of those years the last night at or below 0 °C came later. Hardy crops start before it and frost-tender ones only after it: in the table below arugula can go into open ground from 1 April, while corn waits until 10 May. The first autumn frost follows around 3 November, about 195 days later: harvest or cover frost-tender crops before then.

When to sow and plant

Planting out: a week after the last frost once the soil is warm enough for the crop; frost-hardy crops three weeks before it; an unheated greenhouse three weeks earlier. Seedlings are sown so they are ready on that day. Each window starts on the Greenly calendar date and ends on the last day that still leaves the crop’s days to harvest (from its card) before the average first autumn frost, plus six weeks of picking for crops harvested over weeks (tomatoes, peppers, aubergines, cucumbers, courgettes, pumpkins, watermelons, beans) — our rule; earlier in the window is safer.

What planting zone is Burlington?

The official USDA map (2023, 1991–2020 data) puts the centre of Burlington (ZIP 05401) in zone 5b. Zone 5b stands for an average coldest night of -15 to -10 °F (-26.1 to -23.3 °C), so perennials hardy to zone 5b or a colder zone should come through a typical winter here.

Check the official USDA map for Burlington: USDA Plant Hardiness Zone Map.

When the soil warms up in Burlington

The day the top 7 cm of soil first averages each temperature over a week, median of 2016–2025 (ERA5 via Open-Meteo). The soil reaches 10 °C 12 days after the last spring frost and 15 °C 34 days after it.

Frost dates near Burlington

Of the nearest cities on our list, the last spring frost ends earliest in Albany (17 April) and latest in Sherbrooke (8 May).

Seeds, seedlings and markets in Burlington

Within 15 km of Burlington OpenStreetMap lists 5 garden centres, 3 markets and 5 farm shops (collected 20 October 2026). The nearest garden centre to the city centre is Green State Gardener, 1 km away.

• Green State Gardener — garden centre
  Pine Street 388, 05401 Burlington · 1 km
• The Soda Plant — market
  Pine Street 270 · 1 km
• Adam's Farm Market — farm shop
  Old Stage Road 986, Williston · 11 km
• Gardener's Supply Company — garden centre
  Intervale Road 128, 05401 Burlington · Mon–Sat 09:00–18:00; Sun 10:00–17:00 · 1 km · gardeners.com
• Burlington Farmers Market — market
  Pine Street 345, Burlington · Sat 09:00–14:00 · 1 km · burlingtonfarmersmarket.org
• Paul Mazza's Fruit & Vegetables — farm shop
  River Road 182, 05452 Essex Junction · 12 km · paulmazzas.com

• Where to buy seeds and seedlings in Burlington
• Selling your own harvest in the United States

Places: © OpenStreetMap contributors, ODbL.

Weather in Burlington by month

Average weather in Burlington over 2016–2025: the warmest month is July. Months that average 20 °C or more by day: June–September (22.3–27.3 °C). Nights average below 0 °C in December–March (-8.4–-3.9 °C). About 1141 mm of rain falls in a year, on 152 days; October is the wettest month (126 mm) and February the driest (68 mm).

Average of the daily highs and lows, rain per month and days with at least 1 mm (ERA5 via Open-Meteo, the same grid cell as the frost dates).

Planted in autumn

From a month before the first autumn frost, so the roots grow before winter, to the late-planting limit on each crop’s page (about two weeks before the ground freezes, by ten years of weather).