Ottawa Weather in March
In March, Ottawa averages a high of 3°C (37°F) and a low of -7°C (20°F), based on 56 years of historical weather data from OTTAWA CDA.
3°C
Average high
37°F
-7°C
Average low
20°F
27°C
Record high
80°F · 2012
-28°C
Record low
-19°F · 2003
What to Expect in Ottawa in March
Typical March days in Ottawa reach 3°C (37°F) during the afternoon and cool to around -7°C (20°F) overnight. On average, measurable rain falls on about 39% of days this month. Over the past 56 years, March temperatures in Ottawa have ranged from a record high of 27°C (2012) down to a record low of -28°C (2003).
For a day-by-day look or other months, see the full Ottawa weather history.