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Ottawa July Weather

Averages and records for weather in Ottawa, Ontario in the month of July.

Typical Ottawa July Weather 1991–2020
Average daily high	26.8 °C
Average daily low	16.0 °C
Average monthly precipitation	9.2 cm
Average monthly snow	none
Daily chance of precipitation	39.2%
Daily chance of snow	0%

Ottawa July Weather Records 1889–2024
Highest temperature	37.8 °C	July 13, 1921
Lowest temperature	3.3 °C	July 10, 1942
Highest daily low	24.2 °C	July 4, 2002
Lowest daily high	12.2 °C	July 8, 1963
Hottest average high temperature	31.4 °C	1921
Coldest average high temperature	22.9 °C	1992
Most daily precipitation	8.5 cm	July 24, 2018
Most monthly precipitation	25.0 cm	1899
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
July 1	26.3	15.4	36.7	7.0
July 2	26.4	15.5	37.2	7.2
July 3	26.5	15.6	36.7	4.4
July 4	26.5	15.7	37.8	6.1
July 5	26.6	15.7	36.1	6.1
July 6	26.6	15.8	35.0	6.1
July 7	26.7	15.8	36.7	6.7
July 8	26.8	15.9	36.1	7.8
July 9	26.8	16.0	36.0	7.8
July 10	26.7	16.0	37.0	3.3
July 11	26.7	16.0	35.0	5.6
July 12	26.7	16.0	33.9	6.1
July 13	26.8	16.0	37.8	5.0
July 14	26.8	16.0	35.0	4.4
July 15	26.8	16.0	36.1	5.0
July 16	26.8	16.0	37.2	4.4
July 17	26.9	16.0	34.4	6.1
July 18	26.9	16.0	35.0	4.4
July 19	26.9	16.1	35.0	4.4
July 20	26.9	16.1	34.9	6.1
July 21	26.9	16.1	36.3	7.2
July 22	26.9	16.0	36.7	6.7
July 23	26.8	16.0	35.6	8.3
July 24	26.8	15.9	36.7	6.7
July 25	26.9	15.9	36.7	5.6
July 26	26.9	15.9	35.6	6.7
July 27	26.8	15.9	35.0	5.0
July 28	26.8	15.9	34.4	5.0
July 29	26.8	15.9	36.1	8.2
July 30	26.7	15.8	37.8	5.0
July 31	26.7	15.8	35.0	5.6

Weather Station Details

Years	Station	Coordinates
1889–2024	Ottawa CDA	location