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London Heathrow January Weather

Averages and records for weather in London Heathrow, United Kingdom in the month of January.

Typical London Heathrow January Weather 1991–2020
Average daily high	8.4 °C
Average daily low	2.5 °C
Average monthly precipitation	5.9 cm
Daily chance of precipitation	60.1%

London Heathrow January Weather Records 1959–2024
Highest temperature	15.4 °C	January 5, 1999
Lowest temperature	-13.2 °C	January 24, 1963
Highest daily low	12.5 °C	January 20, 2008
Lowest daily high	-4.6 °C	January 23, 1963
Hottest average high temperature	10.5 °C	2008
Coldest average high temperature	0.8 °C	1963
Most daily precipitation	2.4 cm	January 2, 1986
Most monthly precipitation	16.2 cm	2014

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°C)		Record (°C)
Day	High	Low	High	Low
January 1	8.7	2.7	13.7	-12.8
January 2	8.7	2.8	13.6	-12.2
January 3	8.7	2.7	14.3	-7.2
January 4	8.7	2.7	14.7	-6.5
January 5	8.6	2.7	15.4	-6.5
January 6	8.6	2.7	13.1	-6.6
January 7	8.6	2.7	14.4	-6.8
January 8	8.5	2.6	15.3	-7.1
January 9	8.5	2.6	13.9	-5.4
January 10	8.5	2.6	12.5	-7.8
January 11	8.6	2.5	13.6	-5.7
January 12	8.6	2.5	13.8	-8.9
January 13	8.6	2.6	13.3	-11.1
January 14	8.6	2.6	14.5	-10.1
January 15	8.6	2.6	13.6	-8.5
January 16	8.5	2.6	12.5	-6.5
January 17	8.5	2.5	13.0	-7.7
January 18	8.5	2.5	14.1	-8.0
January 19	8.5	2.5	14.5	-6.8
January 20	8.5	2.5	14.5	-6.4
January 21	8.5	2.5	12.6	-5.2
January 22	8.5	2.5	13.7	-8.7
January 23	8.5	2.5	15.3	-12.3
January 24	8.5	2.5	13.6	-13.2
January 25	8.5	2.4	12.8	-11.1
January 26	8.4	2.4	15.1	-11.6
January 27	8.4	2.3	13.5	-5.3
January 28	8.4	2.3	14.0	-4.4
January 29	8.4	2.3	13.3	-2.6
January 30	8.4	2.3	13.4	-4.5
January 31	8.5	2.2	14.8	-9.3

Weather Station Details

Years	Station	Coordinates
1959–2024	London Heathrow Airport	location