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Swan River September Weather

Averages and records for weather in Swan River, Manitoba in the month of September.

Typical Swan River September Weather 1991–2020
Average daily high	18.2 °C
Average daily low	4.9 °C
Average monthly precipitation	4.2 cm
Daily chance of precipitation	30.5%

Swan River September Weather Records 1904–2024
Highest temperature	37.8 °C	September 13, 1908
Lowest temperature	-12.2 °C	September 25, 1926
Highest daily low	17.4 °C	September 2, 2016
Lowest daily high	0.6 °C	September 30, 1961
Hottest average high temperature	23.9 °C	2009
Coldest average high temperature	11.6 °C	1965
Most daily precipitation	8.5 cm	September 11, 1916
Most monthly precipitation	14.3 cm	1916

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	21.5	7.9	34.5	-0.6
September 2	21.3	7.7	33.0	-6.1
September 3	21.0	7.6	33.9	-1.1
September 4	20.7	7.4	32.8	-1.7
September 5	20.5	7.2	34.4	-3.9
September 6	20.3	7.0	35.0	-2.8
September 7	20.1	6.8	32.2	-5.6
September 8	19.8	6.5	31.4	-2.8
September 9	19.6	6.2	31.7	-3.3
September 10	19.5	6.1	32.5	-3.9
September 11	19.3	5.9	32.2	-5.0
September 12	19.0	5.7	31.1	-2.2
September 13	18.8	5.5	37.8	-5.6
September 14	18.5	5.2	32.8	-6.1
September 15	18.3	5.0	35.0	-5.6
September 16	18.1	4.8	32.8	-5.0
September 17	17.9	4.6	30.6	-5.0
September 18	17.6	4.4	29.1	-6.1
September 19	17.3	4.2	29.3	-6.7
September 20	17.1	3.9	30.0	-6.7
September 21	16.8	3.7	28.9	-3.1
September 22	16.5	3.5	29.5	-5.6
September 23	16.3	3.3	28.4	-5.6
September 24	16.0	3.1	31.7	-6.7
September 25	15.8	2.8	33.1	-12.2
September 26	15.5	2.6	35.1	-6.1
September 27	15.3	2.4	31.1	-11.1
September 28	15.0	2.3	32.8	-9.4
September 29	14.7	2.1	28.9	-10.0
September 30	14.3	1.9	28.9	-7.1

Weather Station Details

Years	Station	Coordinates
1994–2024	Swan River RCS	location
1904–1993	Swan River	location