Ottawa Rainfall Forecast

Today 31 Aug
70%
Mon 1 Sep
65%
Tue 2 Sep
25%
Wed 3 Sep
30%
Thu 4 Sep
35%
Fri 5 Sep
10%
Sat 6 Sep
5%

Ottawa Rainfall Statistics

August Rainfall

Olathe, New Century Aircenter (24.9 miles)

Total Rainfall 2025
24in
Daily Average 2025
0.1in
Wettest Day 3 June, 2025
2.8in
Wet Days 2025
57/243 (23%)
Total Rainfall July
5.6in
Daily Average July
0.2in
Wettest Day 16 July, 2025
2.8in
Wet Days July
9/31 (29%)
Total Rainfall August
0.9in
Daily Average August
0.04in
Wettest Day 11 August, 2025
0.7in
Wet Days August
3/31 (10%)

Climate (2010–Present)

Olathe, New Century Aircenter (24.9 miles)

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Annual Average 2020–2024
36.5in
Monthly Average 2020–2025
2.9in
Daily Average 2020–2025
0.1in
Wettest Day 4 July, 2024
2.9in

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