Greenly Garden

Frost dates and when to plant in North West England

United Kingdom

In North West England the last spring frost comes between 1 April (Liverpool) and 26 April (Carlisle) — the median of 2016–2025 in 3 cities. The first autumn frost comes between 14 November (Manchester) and 26 November (Liverpool). The frost-free season lasts 203–239 days. Tomato: plant out into open ground 26 May – 6 August, earliest in Liverpool, latest in Liverpool.

Frost dates by city in North West England

CityLast spring frostFirst autumn frostFrost-free daysClimate zoneTomato: window
Liverpool1 April26 November239210–269 frost-free days26 May – 6 August
Manchester22 April14 November206150–209 frost-free days27 May – 25 July
Carlisle26 April15 November203150–209 frost-free days5 June – 26 July

Median of 2016–2025 for the 25 km grid cell of the city: the last day at or below 0 °C in spring and the first in autumn (ERA5 reanalysis via Open-Meteo). In a cold year a frost can come a week or two later — Greenly warns 48 hours ahead.

When to plant in North West England: windows by crop

The earliest start and the latest end among the cities here, each with its city; every city’s own window is on its page. 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.

Weather by month in North West England

Across the 3 cities the warmest month is July (average days 19.1 … 19.8 °C) and the coldest January (average nights 1.5 … 2.8 °C). No city here averages below 0 °C at night in any month.

MonthDay, °CNight, °CRain, mm
January6.5 … 7.3 °C1.5 … 2.8 °C112
February7.8 … 8.4 °C2.2 … 3.2 °C107
March9.7 … 10.1 °C2.6 … 3.7 °C100
April12.1 … 12.5 °C3.7 … 4.9 °C66
May15.9 … 16.2 °C7.2 … 8.4 °C73
June18.1 … 18.8 °C10.4 … 11.6 °C100
July19.1 … 19.8 °C11.9 … 13.4 °C112
August18.6 … 19.4 °C11.8 … 13.4 °C110
September16.6 … 17.4 °C9.9 … 11.4 °C120
October13.2 … 14 °C7.5 … 8.9 °C129
November9.3 … 10.1 °C3.8 … 5.5 °C112
December7.5 … 8.4 °C2.9 … 4 °C121

Day and night: the lowest … highest monthly average among the cities; rain: the middle city (ERA5 via Open-Meteo).

What to plant month by month: the UK

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