Last and first frost dates in Kilkenny

When is the last frost in Kilkenny?

The last frost in Kilkenny usually comes around 7 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 17 March, while corn waits until 18 May. The first autumn frost follows around 20 November, about 227 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 Kilkenny

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 26 days after the last spring frost and 15 °C 70 days after it.

Frost dates near Kilkenny

Of the nearest cities on our list, the last spring frost ends earliest in Bray (29 January) and latest in Mullingar (19 March).

Seeds, seedlings and markets in Kilkenny

Within 15 km of Kilkenny OpenStreetMap lists 5 garden centres, 12 farm-supply shops and 5 farm shops (collected 20 October 2026). The nearest garden centre to the city centre is Woodie's, 2 km away.

• Woodie's — garden centre
  Kilkenny Retail and Business Park, Kilkenny · Mon–Wed 09:00–19:00 · 2 km · woodies.ie
• Agristore — farm supply
  Mon–Fri 09:00–17:30; Sat 10:00–14:00 · 3 km
• Tirlán Farmlife — farm shop
  Mon–Fri 09:00–13:00, 14:00–17:30 · 13 km · tirlanfarmlife.com
• Farm & Industrial Supplies — farm supply
  Mon–Fri 09:00–13:00, 14:00–18:00; Sat 09:00–13:00 · 3 km
• Skehana Hill Farm Shop — farm shop
  The Fowl Market 2 · Fri 12:00–19:00; Sat 10:00–14:00 · 14 km
• Tirlán Farmlife — farm supply
  Mon–Fri 09:30–17:30; Sat 09:00–13:00 · 14 km

• Where to buy seeds and seedlings in Kilkenny
• Selling your own harvest in Ireland

Places: © OpenStreetMap contributors, ODbL.

Weather in Kilkenny by month

Average weather in Kilkenny over 2016–2025: the warmest month is July. No month averages 20 °C by day; the warmest, July, reaches 18.9 °C. No month averages below 0 °C at night; the coldest nights, in January, average 2.2 °C. About 1069 mm of rain falls in a year, on 174 days; October is the wettest month (113 mm) and May the driest (69 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).