Ottawa Weather in January
In January, Ottawa averages a high of -5°C (23°F) and a low of -14°C (7°F), based on 56 years of historical weather data from OTTAWA CDA.
-5°C
Average high
23°F
-14°C
Average low
7°F
12°C
Record high
54°F · 2013
-35°C
Record low
-31°F · 1981
What to Expect in Ottawa in January
Typical January days in Ottawa reach -5°C (23°F) during the afternoon and cool to around -14°C (7°F) overnight. On average, measurable rain falls on about 50% of days this month. Over the past 56 years, January temperatures in Ottawa have ranged from a record high of 12°C (2013) down to a record low of -35°C (1981).
For a day-by-day look or other months, see the full Ottawa weather history.