< Previous Month Next Month >

Yellowknife August Weather

Averages and records for weather in Yellowknife, Northwest Territories in the month of August.

Typical Yellowknife August Weather 1991–2020
Average daily high	18.4 °C
Average daily low	10.5 °C
Average monthly precipitation	4.4 cm
Average monthly snow	none
Daily chance of precipitation	36.5%
Daily chance of snow	0%

Yellowknife August Weather Records 1942–2024
Highest temperature	32.6 °C	August 2, 2021
Lowest temperature	-0.6 °C	August 25, 1982
Highest daily low	20.1 °C	August 4, 1984
Lowest daily high	5.6 °C	August 25, 1948
Hottest average high temperature	21.7 °C	1981
Coldest average high temperature	13.3 °C	1959
Most daily precipitation	8.3 cm	August 15, 1973
Most monthly precipitation	14.2 cm	1969
Most daily snow	1.0 cm	August 23, 1982
Most monthly snow	1.4 cm	1982

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°C)		Record (°C)
Day	High	Low	High	Low
August 1	21.0	12.5	31.0	2.5
August 2	21.0	12.4	32.6	5.0
August 3	20.9	12.3	30.0	5.6
August 4	20.8	12.3	30.7	5.0
August 5	20.6	12.2	30.9	6.1
August 6	20.4	12.0	29.4	5.6
August 7	20.2	11.9	30.0	5.0
August 8	20.0	11.8	30.0	5.5
August 9	19.9	11.6	30.1	1.1
August 10	19.7	11.5	30.6	5.3
August 11	19.5	11.3	28.7	5.0
August 12	19.3	11.2	27.8	4.5
August 13	19.1	11.1	27.7	2.8
August 14	18.9	10.9	26.4	2.8
August 15	18.7	10.7	26.5	2.2
August 16	18.5	10.6	27.4	1.7
August 17	18.2	10.4	30.2	2.2
August 18	18.0	10.2	28.9	1.7
August 19	17.7	10.0	25.9	0.6
August 20	17.5	9.8	25.6	2.0
August 21	17.3	9.6	26.2	1.5
August 22	17.1	9.5	27.2	1.7
August 23	16.9	9.3	26.2	0.2
August 24	16.7	9.1	24.8	-0.5
August 25	16.5	9.0	23.6	-0.6
August 26	16.3	8.8	24.9	1.7
August 27	16.1	8.6	24.4	2.2
August 28	15.8	8.4	23.5	2.2
August 29	15.5	8.1	26.1	2.2
August 30	15.3	7.9	25.3	2.1
August 31	15.0	7.7	24.4	0.3

Weather Station Details

Years	Station	Coordinates
2013–2024	Yellowknife A	location
1942–2013	Yellowknife A	location