Weather in Ottawa in December
In an average December, Ottawa sees a daily high around -2°C and a low around -10°C, based on 1980–2026 of local climate records.
| Average high | -2°C |
|---|---|
| Typical high range | -11°C to 4°C |
| Average low | -10°C |
| Typical low range | -20°C to -1°C |
| Average daily precipitation | 3 mm |
December records
The most extreme December on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total December accumulation.
High
Highest
16°C
2015-12-24
Lowest
-24°C
1993-12-27
Low
Highest
7°C
2015-12-11
Lowest
-33°C
1993-12-27
Feels-like
Highest
4°C
2015-12-11
Lowest
-49°C
1980-12-25
Humidity
Highest
9.2 g/m³
1982-12-03
Lowest
0.3 g/m³
1980-12-25
Wind
Highest
39 km/h
1999-12-11
Lowest
4 km/h
2024-12-26
Gust
Highest
99 km/h
2022-12-23
Lowest
10 km/h
2024-12-26
Precip
Wettest
148 mm
2012
Driest
29 mm
2002
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