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Corner Brook September Weather

Averages and records for weather in Corner Brook, Newfoundland and Labrador in the month of September.

Typical Corner Brook September Weather 1991–2020
Average daily high	17.6 °C
Average daily low	9.2 °C
Average monthly precipitation	11.2 cm
Average monthly snow	none
Daily chance of precipitation	52.7%
Daily chance of snow	0%

Corner Brook September Weather Records 1933–2024
Highest temperature	31.5 °C	September 9, 2001
Lowest temperature	-2.8 °C	September 15, 1954
Highest daily low	20.0 °C	September 7, 2016
Lowest daily high	0.0 °C	September 30, 2004
Hottest average high temperature	20.3 °C	1999
Coldest average high temperature	13.9 °C	1978
Most daily precipitation	8.3 cm	September 1, 1948
Most monthly precipitation	23.8 cm	1975
Most daily snow	1.0 cm	September 27, 1989
Most monthly snow	1.4 cm	1989

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	20.2	11.5	27.5	1.1
September 2	20.0	11.3	28.0	1.7
September 3	19.8	11.1	27.5	1.7
September 4	19.6	11.0	28.0	-0.6
September 5	19.4	10.8	29.0	-1.7
September 6	19.2	10.6	27.0	-0.6
September 7	19.0	10.4	28.5	2.8
September 8	18.9	10.3	28.9	-1.1
September 9	18.7	10.2	31.5	-0.6
September 10	18.5	10.1	28.5	0.6
September 11	18.3	9.9	27.5	-2.2
September 12	18.0	9.7	26.7	0.6
September 13	17.9	9.5	28.9	1.7
September 14	17.8	9.4	27.5	0.0
September 15	17.7	9.2	27.0	-2.8
September 16	17.6	9.1	25.6	-1.1
September 17	17.5	9.1	28.9	-1.7
September 18	17.3	8.9	28.3	0.0
September 19	17.1	8.8	27.5	-1.7
September 20	16.9	8.6	26.5	-0.6
September 21	16.7	8.5	26.0	-1.1
September 22	16.4	8.3	27.8	0.0
September 23	16.2	8.1	27.8	0.0
September 24	16.0	7.9	31.1	-1.7
September 25	15.8	7.7	25.6	-1.1
September 26	15.6	7.5	23.3	0.0
September 27	15.4	7.3	25.0	0.0
September 28	15.1	7.2	25.0	0.0
September 29	14.9	7.0	28.5	-1.1
September 30	14.7	6.8	27.0	-2.2

Weather Station Details

Years	Station	Coordinates
1933–2024	Corner Brook	location