climate archive

London weather in 2003

In 2003, the average daily high in London was 14.7°C, 0.5° warmer than the 1991-2020 climate normal (14.2°C). 553 mm of rain fell that year, making it drier than average (649 mm), with 2982 hours of sunshine.

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

Records of 2003

Warmest day: 10 Aug 2003, 34.7°C
Coldest night: 12 Jan 2003, -4.2°C
Wettest day: 23 Nov 2003, 27.1 mm

Day counts for 2003

Frost days (low below 0°C): 44
Ice days (high below 0°C): 0
Warm days (high 25°C or above): 23
Hot days (high 30°C or above): 4

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. 2003 differed by 0.5° in temperature and 96 mm in rainfall.

Frequently asked questions

Was 2003 warmer or cooler than average in London?
2003 was 0.5° warmer than the 1991-2020 climate normal, with an average daily high of 14.7°C compared to a normal of 14.2°C.

How much rain fell in London in 2003?
London recorded 553 mm of rain in total in 2003, compared to a climate normal of 649 mm.

What was the warmest day of 2003 in London?
The warmest day of 2003 was 10 Aug 2003, reaching 34.7°C in London.

Other years