London, England, United Kingdom

Frost Dates for London, England, United Kingdom: Last and First Frost

In London, England, United Kingdom the last spring frost comes around April 3 on average and the first fall frost around November 17, leaving about 228 frost-free days.

Last spring frost
April 3
Range March 4 – April 28
First fall frost
November 17
Range October 21 – December 25
Frost-free season
228 days
Average, last spring to first fall frost
Hardiness zone (estimate)
9a
Coldest night averages 23°F (-5°C)

Frost in the next 7 days

No forecast night below 32°F (0°C) this week.

Frost here means a daily low below 32°F (0°C), measured 2 m above the ground, across 20 complete years of Open-Meteo archive data (CC BY 4.0). Ground frost can still form on clear, calm nights a few degrees warmer. The hardiness zone uses the USDA method (the average of each year's coldest night) on that same data; it is an estimate, not the official USDA map.

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When is the last frost in London, England, United Kingdom?

Around April 3 on average. Over the last 20 years it came as early as March 4 and as late as April 28.

When is the first frost in London, England, United Kingdom?

Around November 17 on average, ranging from October 21 to December 25 over the last 20 years.

What hardiness zone is London, England, United Kingdom?

About zone 9a by the USDA method: the coldest night of the year has averaged 23°F over the last 20 years. This is our estimate from weather-archive data, not an official zone map.