Ottawa Weather in March

The climate in Ottawa during March can be summarized as cool and reasonably dry.

March is in the spring in Ottawa and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a cool 14°C (57°F), whilst at night 1°C (34°F) is normal.

On average March is the 5th driest month of the year in Ottawa with around 75mm 2.9 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 7.5 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Ottawa in March 2024.