Last and first frost dates in Hasselt

When is the last frost in Hasselt?

The last frost in Hasselt usually comes around 19 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 29 March, while corn waits until 26 April. The first autumn frost follows around 18 November, about 213 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 Hasselt

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 21 days before the last spring frost and 15 °C 21 days after it.

Frost dates near Hasselt

Of the nearest cities on our list, the last spring frost ends earliest in Mechelen (10 April) and latest in Aachen (25 April).

Seeds, seedlings and markets in Hasselt

Within 15 km of Hasselt OpenStreetMap lists 21 garden centres, 1 farm-supply shop, 1 plant nursery, 2 markets and 14 farm shops (collected 27 October 2026). The nearest garden centre to the city centre is Plantencentrum Vanstraelen - Priori, 2 km away.

• Plantencentrum Vanstraelen - Priori — garden centre
  Diepenbekerweg 51, Hasselt · Mon–Sat 09:00–18:00; Sun, public holidays 10:00–17:00 · 2 km · vanstraelen-priori.be
• Devisé — farm supply
  Bilterweg 26 · 13 km · devise.be
• Markt Hasselt — market
  Fri 08:00–13:00 · 0 km
• De Fruitkorf — farm shop
  Stationsstraat 38, 3570 Alken · Tue–Fri 10:00–12:30, 13:30–18:00; Sat 09:00–16:30; Sun, Mon closed · 6 km
• Aveve — garden centre
  Genkersteenweg 301, 3500 Hasselt · Mon–Fri 09:00–18:30; Sat 09:00–18:00 · 3 km · aveve.be
• Boerderijwinkel De Wroeter — farm shop
  Sint-Rochusstraat 8 · 6 km

• Where to buy seeds and seedlings in Hasselt
• Selling your own harvest in Belgium

Places: © OpenStreetMap contributors, ODbL.

Weather in Hasselt by month

Average weather in Hasselt over 2016–2025: the warmest month is August. Months that average 20 °C or more by day: June–September (20.6–23.9 °C). No month averages below 0 °C at night; the coldest nights, in January, average 1.1 °C. About 864 mm of rain falls in a year, on 153 days; January is the wettest month (89 mm) and April the driest (44 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).