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Oshawa August Weather

Averages and records for weather in Oshawa, Ontario in the month of August.

Typical Oshawa August Weather 1991–2020
Average daily high	24.9 °C
Average daily low	15.4 °C
Average monthly precipitation	7.0 cm
Average monthly snow	none
Daily chance of precipitation	33.3%
Daily chance of snow	0%

Oshawa August Weather Records 1882–2024
Highest temperature	36.7 °C	August 1, 1955
Lowest temperature	2.8 °C	August 27, 1885
Highest daily low	24.4 °C	August 12, 2016
Lowest daily high	15.0 °C	August 28, 1982
Hottest average high temperature	28.0 °C	2016
Coldest average high temperature	21.7 °C	1992
Most daily precipitation	7.5 cm	August 26, 1986
Most monthly precipitation	20.9 cm	1986
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
August 1	25.6	16.0	36.7	8.3
August 2	25.5	15.9	32.2	5.6
August 3	25.5	15.9	32.8	8.3
August 4	25.5	15.9	32.2	7.8
August 5	25.4	15.8	33.3	7.8
August 6	25.4	15.7	32.5	6.1
August 7	25.3	15.7	36.0	6.7
August 8	25.2	15.6	33.0	8.3
August 9	25.2	15.6	32.2	6.7
August 10	25.2	15.6	31.8	7.2
August 11	25.1	15.5	31.9	7.8
August 12	25.1	15.5	33.6	7.2
August 13	25.0	15.5	31.0	8.0
August 14	25.0	15.5	31.0	5.6
August 15	25.0	15.4	31.9	7.2
August 16	24.9	15.3	31.1	7.2
August 17	24.8	15.2	31.1	5.6
August 18	24.7	15.1	32.2	7.8
August 19	24.6	15.0	33.3	5.6
August 20	24.5	15.0	33.3	7.8
August 21	24.5	14.9	32.8	7.6
August 22	24.4	14.9	33.9	5.0
August 23	24.3	14.8	31.8	5.0
August 24	24.3	14.7	30.6	6.1
August 25	24.2	14.6	30.6	4.4
August 26	24.0	14.5	30.7	6.1
August 27	23.9	14.4	34.5	2.8
August 28	23.8	14.3	32.8	4.5
August 29	23.7	14.1	33.3	3.0
August 30	23.6	14.0	31.0	4.4
August 31	23.5	13.9	32.2	3.3

Weather Station Details

Years	Station	Coordinates
2010–2024	Oshawa	location
1970–2009	Oshawa WPCP	location
1882–1969	Oshawa	location