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Welland September Weather

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

Typical Welland September Weather 1991–2020
Average daily high	22.6 °C
Average daily low	11.8 °C
Average monthly precipitation	9.4 cm
Average monthly snow	none
Daily chance of precipitation	39.6%
Daily chance of snow	0%

Welland September Weather Records 1872–2024
Highest temperature	35.0 °C	September 6, 1881
Lowest temperature	-2.2 °C	September 10, 1883
Highest daily low	25.6 °C	September 5, 1881
Lowest daily high	5.6 °C	September 30, 1899
Hottest average high temperature	27.3 °C	1881
Coldest average high temperature	18.2 °C	1875
Most daily precipitation	11.8 cm	September 30, 1959
Most monthly precipitation	24.0 cm	1977
Most daily snow	none	-
Most monthly snow	none	-

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	24.8	14.2	33.9	5.0
September 2	24.7	14.0	33.3	3.3
September 3	24.6	13.9	33.9	3.3
September 4	24.5	13.8	33.3	2.0
September 5	24.4	13.6	33.9	4.0
September 6	24.2	13.5	35.0	2.2
September 7	24.1	13.4	34.4	3.3
September 8	24.0	13.2	32.8	2.0
September 9	23.8	13.0	33.9	1.7
September 10	23.6	12.8	32.2	-2.2
September 11	23.4	12.6	32.2	0.6
September 12	23.3	12.4	33.9	2.2
September 13	23.1	12.3	32.2	3.9
September 14	22.9	12.2	31.7	0.6
September 15	22.7	11.9	33.3	2.8
September 16	22.5	11.7	31.1	1.5
September 17	22.3	11.6	31.7	0.0
September 18	22.0	11.4	31.1	-0.5
September 19	21.8	11.2	32.2	-0.6
September 20	21.6	11.1	30.6	0.0
September 21	21.3	10.9	30.6	0.6
September 22	21.0	10.6	32.2	0.6
September 23	20.8	10.4	32.2	-1.7
September 24	20.7	10.2	31.7	0.0
September 25	20.5	10.0	31.7	1.1
September 26	20.3	9.9	31.0	0.0
September 27	20.1	9.7	30.4	0.0
September 28	19.9	9.4	31.7	0.6
September 29	19.7	9.2	28.3	-1.7
September 30	19.5	9.0	30.6	-0.6

Weather Station Details

Years	Station	Coordinates
2015–2024	Welland-Pelham	location
1872–2014	Welland	location