Last and first frost dates in Mulhouse

When is the last frost in Mulhouse?

The last frost in Mulhouse usually comes around 6 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 16 March, while corn waits until 16 April. The first autumn frost follows around 17 November, about 225 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 Mulhouse

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 6 days before the last spring frost and 15 °C 37 days after it.

Frost dates near Mulhouse

Of the nearest cities on our list, the last spring frost ends earliest in Basel (5 April) and latest in Biel/Bienne (29 April).

Seeds, seedlings and markets in Mulhouse

Within 15 km of Mulhouse OpenStreetMap lists 12 garden centres, 2 markets and 7 farm shops (collected 27 October 2026). The nearest garden centre to the city centre is Jardinerie Éthique, 1 km away.

• Jardinerie Éthique — garden centre
  Rue de l'Arsenal 24, 68100 · 1 km
• Le Marché du Canal Couvert de Mulhouse — market
  Tue, Thu 05:30–17:00; Sat 05:30–17:00 · 0 km · marchedemulhouse.com
• La Ferme du Château — farm shop
  Rue de la Ferme 2, 68120 Pfastatt · Mon–Fri 08:30–19:00; Sat 08:30–18:00 · 3 km · fermeduchateaupfastatt.fr
• Ma Jardinerie — garden centre
  Sat 09:00–19:00; Mon–Fri 14:00–19:00, 09:00–12:00 · 5 km
• La Ferme Fischer — farm shop
  Tue 13:30–18:00; Fri 10:00–18:00 · 6 km · ferme-fischer.fr
• Walliser — garden centre
  Mon–Fri 09:00–12:00, 13:30–18:00; Sat 13:30–17:00 · 5 km

• Where to buy seeds and seedlings in Mulhouse
• Selling your own harvest in France

Places: © OpenStreetMap contributors, ODbL.

Weather in Mulhouse by month

Average weather in Mulhouse over 2016–2025: the warmest month is August. Months that average 20 °C or more by day: June–September (22–26.4 °C). Nights average below 0 °C in January (-0.4 °C). About 895 mm of rain falls in a year, on 144 days; January is the wettest month (96 mm) and September the driest (60 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).