Last and first frost dates in Liberec

When is the last frost in Liberec?

The last frost in Liberec usually comes around 25 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 4 April, while corn waits until 11 May. The first autumn frost follows around 1 November, about 190 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 Liberec

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

Frost dates near Liberec

Of the nearest cities on our list, the last spring frost ends earliest in Hradec Králové (18 April) and latest in Ústí nad Labem (27 April).

Seeds, seedlings and markets in Liberec

Within 15 km of Liberec OpenStreetMap lists 1 garden centre, 2 plant nurseries, 1 market and 1 farm shop (collected 28 October 2026). The nearest garden centre to the city centre is HECHT, 2 km away.

• HECHT — garden centre
  Dr. Milady Horákové 11/76, 46007 Liberec · Mon–Sun 08:00–20:00 · 2 km · hecht.cz
• Náš grunt — farm shop
  Mon–Thu 06:00–19:00; Fri 06:00–20:00; Sat 07:00–17:00; Sun 08:00–19:00 · 14 km

• Where to buy seeds and seedlings in Liberec
• Selling your own harvest in Czechia

Places: © OpenStreetMap contributors, ODbL.

Weather in Liberec by month

Average weather in Liberec over 2016–2025: the warmest month is August. Months that average 20 °C or more by day: June (21.6 °C), July (22.3 °C) and August (22.5 °C). Nights average below 0 °C in December–March (-3.8–-0.4 °C). About 899 mm of rain falls in a year, on 158 days; August is the wettest month (95 mm) and April the driest (51 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).