Weather in Ottawa in May
In an average May, Ottawa sees a daily high around 19°C and a low around 7°C, based on 1980–2026 of local climate records.
| Average high | 19°C |
|---|---|
| Typical high range | 12°C to 26°C |
| Average low | 7°C |
| Typical low range | 2°C to 13°C |
| Average daily precipitation | 3 mm |
May records
The most extreme May on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total May accumulation.
High
Highest
35°C
2020-05-27
Lowest
4°C
2017-05-08
Low
Highest
20°C
2021-05-26
Lowest
-3°C
2020-05-12
Feels-like
Highest
49°C
2020-05-27
Lowest
-9°C
1986-05-03
Humidity
Highest
18.1 g/m³
1987-05-29
Lowest
2.3 g/m³
1986-05-03
Wind
Highest
36 km/h
2018-05-05
Lowest
5 km/h
1989-05-15
Gust
Highest
90 km/h
2009-05-14
Lowest
14 km/h
1990-05-26
Precip
Wettest
215 mm
2017
Driest
33 mm
2005
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