Last and first frost dates in Huntsville

When is the last frost in Huntsville?

The last frost in Huntsville usually comes around 20 March: 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 27 February, while corn waits until 27 March. The first autumn frost follows around 14 November, about 239 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.

When the soil warms up in Huntsville

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 36 days before the last spring frost and 15 °C 16 days after it.

Frost dates near Huntsville

Of the nearest cities on our list, the last spring frost ends earliest in Birmingham (United States) (10 March) and latest in Bowling Green (31 March).

Seeds, seedlings and markets in Huntsville

Within 15 km of Huntsville OpenStreetMap lists 1 garden centre, 1 plant nursery and 1 market (collected 28 October 2026). The nearest plant nursery to the city centre is Indian Creek Wholesale Nursery, 14 km away.

• Indian Creek Wholesale Nursery — plant nursery
  Slaughter Road 1124, 35758 Madison · Sun closed; Mon–Fri 07:00–17:00; Sat 08:00–17:00 · 14 km · indiancreeknurseryal.com

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

Places: © OpenStreetMap contributors, ODbL.

Weather in Huntsville by month

Average weather in Huntsville over 2016–2025: the warmest month is July. Months that average 20 °C or more by day: April–October (20.6–30.6 °C). Months that average 30 °C or more by day: July (30.6 °C). No month averages below 0 °C at night; the coldest nights, in January, average 0.2 °C. About 1441 mm of rain falls in a year, on 138 days; February is the wettest month (174 mm) and October the driest (82 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).