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London April Weather

Averages and records for weather in London, Ontario in the month of April.

Typical London April Weather 1991–2020
Average daily high	12.2 °C
Average daily low	1.4 °C
Average monthly precipitation	8.7 cm
Daily chance of precipitation	47.6%

London April Weather Records 1883–2024
Highest temperature	30.6 °C	April 26, 1915
Lowest temperature	-17.8 °C	April 1, 1923
Highest daily low	16.4 °C	April 28, 1990
Lowest daily high	-7.2 °C	April 6, 1982
Hottest average high temperature	16.6 °C	1921
Coldest average high temperature	7.5 °C	1975
Most daily precipitation	6.6 cm	April 20, 2000
Most monthly precipitation	21.5 cm	1937

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

Day	Average (°C)		Record (°C)
Day	High	Low	High	Low
April 1	8.7	-1.1	24.9	-17.8
April 2	9.0	-0.8	25.6	-12.2
April 3	9.2	-0.7	24.6	-12.2
April 4	9.5	-0.5	23.9	-10.6
April 5	9.8	-0.3	26.1	-12.8
April 6	10.2	-0.1	27.2	-12.4
April 7	10.5	0.2	26.7	-12.2
April 8	10.7	0.4	26.0	-12.2
April 9	11.0	0.5	22.8	-9.4
April 10	11.2	0.7	26.1	-8.1
April 11	11.4	0.8	25.6	-8.9
April 12	11.6	1.0	26.8	-7.2
April 13	11.8	1.1	28.9	-10.6
April 14	11.9	1.2	26.7	-10.6
April 15	12.1	1.3	27.2	-8.9
April 16	12.3	1.4	28.2	-8.7
April 17	12.6	1.6	28.9	-10.6
April 18	12.8	1.9	28.3	-10.6
April 19	13.1	2.1	27.4	-6.7
April 20	13.4	2.4	26.9	-7.8
April 21	13.7	2.6	26.6	-6.1
April 22	14.0	2.9	28.5	-5.0
April 23	14.2	3.1	30.0	-5.0
April 24	14.5	3.3	29.4	-5.6
April 25	14.8	3.5	30.0	-7.2
April 26	15.1	3.8	30.6	-5.0
April 27	15.3	3.9	28.9	-4.4
April 28	15.5	4.1	28.3	-5.6
April 29	15.6	4.3	27.8	-5.0
April 30	15.8	4.4	28.3	-4.4

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