London Longest Rain Streaks

What's the most days it has rained in a row in London history? This page shows the most consecutive days with precipitation (rain or snow) in London, Ontario from 1883–2024.

Longest dry streaks

Longest Streak: 23 Days

Between Jan 19 – Feb 10, 1947, there was at least 0.01 inches of rain or 0.1 inches of snow recorded each day in London.

# Days	When
23	Jan 19 – Feb 10, 1947
18	Jan 9–26, 2003
17	Dec 23, 2017 – Jan 8, 2018
16	Dec 14–29, 1963
15	Dec 22, 2020 – Jan 5, 2021
15	Dec 7–21, 1974
15	Feb 3–17, 1971
15	Jan 1–15, 1929
14	Jan 6–19, 1999
14	Dec 19, 1989 – Jan 1, 1990
14	Jan 14–27, 1985
14	Feb 22 – Mar 7, 1975
14	Dec 10–23, 1969
14	Nov 22 – Dec 5, 1947
13	Dec 16–28, 2000
13	Jan 3–15, 1998
13	Mar 21 – Apr 2, 1966
13	Jan 20 – Feb 1, 1951
13	Dec 17–29, 1944
12	Feb 7–18, 2005

Weather Station Details

Years	Station	Coordinates
2002–2024	London CS	location
1941–2002	London International Airport	location
1932–1940	London Lambeth A	location
1883–1931	London South	location