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Hay River September Weather

Averages and records for weather in Hay River, Northwest Territories in the month of September.

Typical Hay River September Weather 1991–2020
Average daily high	13.9 °C
Average daily low	4.7 °C
Average monthly precipitation	4.4 cm
Average monthly snow	1.1 cm
Daily chance of precipitation	39.2%
Daily chance of snow	2.3%

Hay River September Weather Records 1943–2024
Highest temperature	30.1 °C	September 12, 2013
Lowest temperature	-11.7 °C	September 30, 1974
Highest daily low	14.8 °C	September 7, 1993
Lowest daily high	-2.8 °C	September 27, 1974
Hottest average high temperature	17.6 °C	2013
Coldest average high temperature	7.4 °C	1972
Most daily precipitation	6.0 cm	September 13, 1991
Most monthly precipitation	12.7 cm	1991
Most daily snow	12.2 cm	September 27, 1983
Most monthly snow	16.4 cm	1951

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	17.2	7.1	26.1	0.6
September 2	16.8	6.8	27.3	-0.5
September 3	16.6	6.6	23.9	-2.2
September 4	16.4	6.4	28.1	-1.9
September 5	16.2	6.3	29.4	-3.4
September 6	16.0	6.1	30.0	-0.7
September 7	15.8	5.9	28.7	-3.4
September 8	15.6	5.7	28.7	-0.6
September 9	15.4	5.6	26.1	-3.6
September 10	15.3	5.4	25.6	-3.3
September 11	15.1	5.2	26.9	-2.2
September 12	14.9	5.0	30.1	-3.9
September 13	14.7	4.9	26.9	-3.3
September 14	14.4	4.7	24.0	-5.4
September 15	14.2	4.5	27.8	-3.3
September 16	13.9	4.3	25.2	-2.2
September 17	13.6	4.1	25.3	-4.4
September 18	13.3	3.9	26.7	-4.5
September 19	13.0	3.7	25.0	-5.8
September 20	12.8	3.5	26.8	-6.7
September 21	12.5	3.3	23.8	-6.7
September 22	12.2	3.0	23.1	-3.3
September 23	11.9	2.8	27.2	-5.2
September 24	11.6	2.6	24.2	-7.9
September 25	11.3	2.3	25.7	-7.8
September 26	11.0	2.1	23.3	-6.1
September 27	10.7	1.9	26.1	-8.3
September 28	10.4	1.7	27.7	-9.3
September 29	10.1	1.4	20.1	-10.3
September 30	9.8	1.2	23.9	-11.7

Weather Station Details

Years	Station	Coordinates
1943–2024	Hay River A	location