climate archive

London weather in 1999

In 1999, the average daily high in London was 14.3°C, 0.1° warmer than the 1991-2020 climate normal (14.2°C). 637 mm of rain fell that year, making it drier than average (649 mm), with 2771 hours of sunshine.

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

Records of 1999

Warmest day: 2 Aug 1999, 29.5°C
Coldest night: 20 Dec 1999, -4.5°C
Wettest day: 7 Aug 1999, 30.1 mm

Day counts for 1999

Frost days (low below 0°C): 24
Ice days (high below 0°C): 0
Warm days (high 25°C or above): 15
Hot days (high 30°C or above): 0

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. 1999 differed by 0.1° in temperature and 12 mm in rainfall.

Frequently asked questions

Was 1999 warmer or cooler than average in London?
1999 was 0.1° warmer than the 1991-2020 climate normal, with an average daily high of 14.3°C compared to a normal of 14.2°C.

How much rain fell in London in 1999?
London recorded 637 mm of rain in total in 1999, compared to a climate normal of 649 mm.

What was the warmest day of 1999 in London?
The warmest day of 1999 was 2 Aug 1999, reaching 29.5°C in London.

Other years