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Hamilton October Weather

Averages and records for weather in Hamilton, Ontario in the month of October.

Typical Hamilton October Weather 1991–2020
Average daily high	15.3 °C
Average daily low	5.5 °C
Average monthly precipitation	7.5 cm
Daily chance of precipitation	42.6%

Hamilton October Weather Records 1866–2024
Highest temperature	32.2 °C	October 5, 1951
Lowest temperature	-11.1 °C	October 26, 1887
Highest daily low	21.1 °C	October 15, 1897
Lowest daily high	1.7 °C	October 30, 1925
Hottest average high temperature	21.6 °C	1963
Coldest average high temperature	10.2 °C	1925
Most daily precipitation	10.7 cm	October 5, 1995
Most monthly precipitation	18.5 cm	1954

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

Day	Average (°C)		Record (°C)
Day	High	Low	High	Low
October 1	19.1	8.1	31.1	-3.3
October 2	18.8	7.9	30.0	-0.6
October 3	18.5	7.7	30.0	-2.8
October 4	18.3	7.6	30.0	-2.8
October 5	18.1	7.4	32.2	-3.9
October 6	17.8	7.2	30.6	-2.8
October 7	17.6	7.1	30.0	-3.3
October 8	17.3	6.9	31.7	-3.9
October 9	17.0	6.7	29.3	-1.7
October 10	16.8	6.6	29.4	-3.3
October 11	16.5	6.4	28.9	-5.6
October 12	16.3	6.2	28.9	-3.9
October 13	16.0	6.0	27.4	-4.0
October 14	15.8	5.8	26.1	-5.0
October 15	15.5	5.7	29.4	-2.2
October 16	15.3	5.5	27.2	-6.1
October 17	15.1	5.3	28.9	-2.8
October 18	14.8	5.1	27.8	-5.0
October 19	14.6	4.9	28.9	-5.0
October 20	14.4	4.7	24.4	-5.0
October 21	14.1	4.5	26.7	-6.7
October 22	13.9	4.4	27.2	-6.7
October 23	13.7	4.2	26.3	-6.7
October 24	13.4	4.0	24.4	-5.0
October 25	13.1	3.8	27.2	-8.9
October 26	13.0	3.7	25.0	-11.1
October 27	12.8	3.5	24.4	-10.6
October 28	12.5	3.4	23.9	-8.3
October 29	12.3	3.2	24.4	-6.7
October 30	12.0	3.0	23.3	-10.6
October 31	11.9	2.9	23.9	-7.8

Weather Station Details

Years	Station	Coordinates
1997–2024	Hamilton RBG CS	location
1955–1997	Hamilton RBG	location
1866–1954	Hamilton	location