climate archive

London weather in 2017

In 2017, the average daily high in London was 14.8°C, 0.6° warmer than the 1991-2020 climate normal (14.2°C). 660 mm of rain fell that year, making it wetter than average (649 mm), with 2621 hours of sunshine.

Measured in London. Source: Open-Meteo historical data (ERA5 reanalysis).

Records of 2017

Warmest day: 21 Jun 2017, 31.6°C
Coldest night: 22 Jan 2017, -4.8°C
Wettest day: 17 May 2017, 26.3 mm

Day counts for 2017

Frost days (low below 0°C): 38
Ice days (high below 0°C): 0
Warm days (high 25°C or above): 10
Hot days (high 30°C or above): 1

Compared with the climate normal (1991-2020)

The climate normal for London over the 1991-2020 reference period is an average daily high of 14.2°C, 649 mm of rain and 2737 hours of sunshine per year. 2017 differed by 0.6° in temperature and 11 mm in rainfall.

Frequently asked questions

Was 2017 warmer or cooler than average in London?
2017 was 0.6° warmer than the 1991-2020 climate normal, with an average daily high of 14.8°C compared to a normal of 14.2°C.

How much rain fell in London in 2017?
London recorded 660 mm of rain in total in 2017, compared to a climate normal of 649 mm.

What was the warmest day of 2017 in London?
The warmest day of 2017 was 21 Jun 2017, reaching 31.6°C in London.

Other years