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Trois-Rivières September Weather

Averages and records for weather in Trois-Rivières, Quebec in the month of September.

Typical Trois-Rivières September Weather 1991–2020
Average daily high	19.7 °C
Average daily low	10.8 °C
Average monthly precipitation	7.8 cm
Daily chance of precipitation	33.8%

Trois-Rivières September Weather Records 1934–2024
Highest temperature	32.2 °C	September 7, 1945
Lowest temperature	-7.2 °C	September 29, 1980
Highest daily low	22.2 °C	September 1, 2010
Lowest daily high	5.0 °C	September 30, 1992
Hottest average high temperature	23.0 °C	1946
Coldest average high temperature	16.8 °C	1978
Most daily precipitation	8.3 cm	September 11, 1975
Most monthly precipitation	19.2 cm	1975

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

Day	Average (°C)		Record (°C)
Day	High	Low	High	Low
September 1	22.2	13.4	31.1	1.5
September 2	22.0	13.2	31.7	3.3
September 3	21.9	13.1	30.6	-1.1
September 4	21.7	12.9	30.0	1.1
September 5	21.6	12.7	30.5	2.2
September 6	21.5	12.5	31.7	1.7
September 7	21.3	12.4	32.2	-2.0
September 8	21.2	12.2	31.7	0.0
September 9	21.0	12.0	30.8	0.0
September 10	20.7	11.8	30.0	-1.7
September 11	20.5	11.6	30.0	2.8
September 12	20.4	11.4	26.5	-0.6
September 13	20.2	11.2	29.4	-1.1
September 14	20.1	11.1	28.3	-1.1
September 15	19.8	10.9	30.0	-2.2
September 16	19.6	10.7	31.1	-2.2
September 17	19.4	10.5	29.4	-1.7
September 18	19.1	10.3	31.1	-1.1
September 19	18.9	10.1	29.4	-2.2
September 20	18.6	9.9	28.9	-1.7
September 21	18.4	9.7	28.3	-2.2
September 22	18.1	9.4	30.0	-3.9
September 23	17.8	9.2	28.3	-2.2
September 24	17.6	9.0	27.3	-4.4
September 25	17.4	8.8	27.2	-1.7
September 26	17.2	8.7	26.9	-4.4
September 27	17.0	8.5	26.1	-5.0
September 28	16.7	8.3	27.8	-6.7
September 29	16.5	8.1	27.8	-7.2
September 30	16.3	7.9	26.7	-2.8

Weather Station Details

Years	Station	Coordinates
1994–2024	Trois-Rivieres	location
1975–1993	Trois-Rivieres Aqueduc	location
1934–1974	Trois-Rivieres	location