Ottawa Weather in April
In April, Ottawa averages a high of 11°C (52°F) and a low of 1°C (34°F), from 56 years of daily records (1971–2026).
11°C
Average high
52°F
1°C
Average low
34°F
31°C
Record high
88°F · April 27, 1990
-15°C
Record low
5°F · April 7, 1982
What April Is Like in Ottawa
- The April heat record, 31°C (88°F) on April 27, 1990, has stood for 36 years.
- The coldest April reading, -15°C (5°F) on April 7, 1982, has not been matched in 44 years.
- Snow falls on about 2.4 days in a typical April.
- On average, 12 nights in April drop below freezing.
At least 1 mm of rain falls on 32% of April days, and the month averages 73 mm in total.
Warmest: 2010 (15.4°C)Latest: 2026 (12.6°C)10-year averageLong-run average (10.9°C)
Look Up a Day in April
See the weather in Ottawa on any April date, year by year.
Source: NOAA GHCN-Daily, Ottawa Cda (1971–2023); Ottawa Cda Rcs (2000–2026). Averages cover 1971–2026. How we compute this