Weather in Ottawa, Ontario, Canada in May
In an average May, Ottawa sees a daily high around 18°C and a low around 6°C, based on 1981–2026 of local climate records.
| Average high | 18°C |
|---|---|
| Typical high range | 12°C to 24°C |
| Average low | 6°C |
| Typical low range | 1°C to 11°C |
| Average daily precipitation | 3 mm |
May records
The most extreme May on record for each metric, across 1981–2026. For rainfall, the wettest and driest are by total May accumulation.
High
Highest
31°C
1987-05-29
Lowest
2°C
2017-05-08
Low
Highest
19°C
2006-05-30
Lowest
-4°C
2020-05-12
Feels-like
Highest
43°C
1987-05-29
Lowest
-10°C
2020-05-09
Humidity
Highest
18.7 g/m³
1987-05-29
Lowest
3.2 g/m³
1986-05-03
Wind
Highest
27 km/h
2018-05-04
Lowest
5 km/h
1989-05-15
Precip
Wettest
175 mm
2017
Driest
27 mm
2021
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