Last and first frost dates in Hradec Králové

When is the last frost in Hradec Králové?

The last frost in Hradec Králové usually comes around 18 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 28 March, while corn waits until 2 May. The first autumn frost follows around 11 November, about 207 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 Hradec Králové

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 5 days before the last spring frost and 15 °C 33 days after it.

Frost dates near Hradec Králové

Of the nearest cities on our list, the last spring frost ends earliest in Pardubice (16 April) and latest in Jelenia Góra (27 April).

Seeds, seedlings and markets in Hradec Králové

Within 15 km of Hradec Králové OpenStreetMap lists 4 garden centres, 1 farm-supply shop and 4 farm shops (collected 28 October 2026). The nearest garden centre to the city centre is John zahradnictví s.r.o., 3 km away.

• John zahradnictví s.r.o. — garden centre
  Pražská třída 16/106, 50004 · Mon–Fri 08:00–18:00; Sat 08:00–16:00; Sun 09:00–16:00 · 3 km
• KAMÍR a Co spol. s r.o. — farm supply
  Hradecká 92, 55101 Jaroměř · Mon–Fri 8:00 - 12:00 12:30 - 16:00 · 15 km
• Microgreens — farm shop
  Mon–Fri 07:30–12:30, 13:00–18:00; Sat 09:30–13:00 · 3 km · ceskalouka.cz
• Valenta Vladimír — garden centre
  Mon–Sun 09:00–16:00 · 10 km
• Farma Čeperka Prodej Vajec — farm shop
  Lesní 369 · Mon–Sun 06:00–18:00 · 9 km

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

Places: © OpenStreetMap contributors, ODbL.

Weather in Hradec Králové by month

Average weather in Hradec Králové over 2016–2025: the warmest month is August. Months that average 20 °C or more by day: June–September (20.4–24.8 °C). Nights average below 0 °C in January (-2.9 °C), February (-1.7 °C) and December (-0.9 °C). About 731 mm of rain falls in a year, on 132 days; August is the wettest month (91 mm) and March the driest (41 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).