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Granby September Weather

Averages and records for weather in Granby, Quebec in the month of September.

Typical Granby September Weather 1991–2020
Average daily high	20.2 °C
Average daily low	10.5 °C
Average monthly precipitation	11.5 cm
Average monthly snow	none
Daily chance of precipitation	41.3%
Daily chance of snow	0%

Granby September Weather Records 1948–2023
Highest temperature	33.0 °C	September 9, 2002
Lowest temperature	-3.0 °C	September 30, 1991
Highest daily low	22.0 °C	September 2, 2010
Lowest daily high	4.0 °C	September 30, 1992
Hottest average high temperature	23.3 °C	1948
Coldest average high temperature	16.6 °C	1978
Most daily precipitation	7.0 cm	September 29, 2020
Most monthly precipitation	22.1 cm	1999
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	22.8	12.9	32.2	4.4
September 2	22.6	12.7	30.5	3.0
September 3	22.4	12.6	32.2	3.3
September 4	22.3	12.4	33.0	4.0
September 5	22.1	12.2	31.5	3.0
September 6	22.0	12.0	32.2	2.0
September 7	21.9	11.9	31.7	2.5
September 8	21.8	11.8	32.2	2.0
September 9	21.5	11.7	33.0	3.9
September 10	21.3	11.4	32.0	2.2
September 11	21.1	11.3	30.0	1.0
September 12	20.9	11.1	28.9	-2.2
September 13	20.8	11.0	31.7	0.6
September 14	20.6	10.9	30.0	2.2
September 15	20.4	10.6	29.5	1.7
September 16	20.1	10.4	27.0	1.1
September 17	19.9	10.3	27.0	1.1
September 18	19.6	10.1	27.0	0.0
September 19	19.4	9.8	28.3	0.0
September 20	19.1	9.7	29.5	-0.6
September 21	18.9	9.5	28.0	-1.1
September 22	18.5	9.2	30.0	1.5
September 23	18.3	8.9	28.7	0.0
September 24	18.0	8.7	26.0	-1.7
September 25	17.8	8.5	28.0	-1.1
September 26	17.6	8.4	27.0	-2.2
September 27	17.4	8.2	25.3	-3.0
September 28	17.2	8.0	26.0	-1.0
September 29	17.0	7.7	27.2	-3.0
September 30	16.9	7.6	28.9	-3.0

Weather Station Details

Years	Station	Coordinates
1948–2023	Granby	location