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Kitchener September Weather

Averages and records for weather in Kitchener, Ontario in the month of September.

Typical Kitchener September Weather 1991–2020
Average daily high	21.6 °C
Average daily low	8.7 °C
Average monthly precipitation	7.9 cm
Daily chance of precipitation	38.7%

Kitchener September Weather Records 1914–2024
Highest temperature	36.7 °C	September 3, 1953
Lowest temperature	-3.7 °C	September 27, 1989
Highest daily low	22.2 °C	September 3, 1973
Lowest daily high	4.4 °C	September 24, 1950
Hottest average high temperature	26.2 °C	1921
Coldest average high temperature	17.6 °C	1993
Most daily precipitation	8.8 cm	September 17, 1976
Most monthly precipitation	21.7 cm	1986

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	24.0	11.1	36.1	2.8
September 2	23.9	11.0	36.7	3.9
September 3	23.8	10.9	36.7	1.1
September 4	23.7	10.7	33.9	0.0
September 5	23.6	10.6	32.4	2.8
September 6	23.5	10.4	33.8	1.0
September 7	23.3	10.3	33.3	1.0
September 8	23.2	10.1	33.9	0.2
September 9	23.0	9.9	33.2	1.9
September 10	22.8	9.7	34.5	2.2
September 11	22.6	9.5	33.3	1.1
September 12	22.4	9.3	34.4	-0.6
September 13	22.2	9.1	35.6	1.7
September 14	22.0	9.0	32.2	0.6
September 15	21.8	8.8	35.6	0.4
September 16	21.5	8.6	33.9	-0.6
September 17	21.3	8.5	31.7	-1.1
September 18	21.0	8.3	31.7	-2.2
September 19	20.8	8.1	31.7	-2.6
September 20	20.6	7.9	28.9	-2.2
September 21	20.2	7.7	30.1	-1.0
September 22	20.0	7.5	30.0	-1.1
September 23	19.8	7.3	30.5	-0.7
September 24	19.7	7.1	32.8	-1.7
September 25	19.5	6.9	31.4	0.0
September 26	19.3	6.8	31.9	-3.3
September 27	19.1	6.6	27.8	-3.7
September 28	18.8	6.3	30.0	-3.3
September 29	18.6	6.1	27.2	-2.5
September 30	18.4	6.0	27.8	-2.8

Weather Station Details

Years	Station	Coordinates
2010–2024	Kitchen / Waterloo	location
2002–2010	Region of Waterloo International Airport	location
1978–2002	Waterloo Wellington A	location
1914–1977	Kitchener	location