Ottawa - Recent March Temperatures, Rain & Snow





The numbers here describe what the March weather in Ottawa, Ontario Canada was like for every year since 2010. A series of tables gives March data by year for temperature, precipitation and snowfall.

They begin with average maximum and minimum temperatures in degrees Fahrenheit and Celsius. That's followed by how many hot or cold days occurred each March. Then there's information on how much rain and snow actually landed this month during recent years, as well as how often Ottawa had wet or snowy weather.

The climate data come from weather measurements made near downtown Ottawa, except for snowfall which since 2020 was recorded at Ottawa International Airport.

Temperature Weather iconTemperature

March temperature averages by year in Ottawa
High °F Low °F Year High °C Low °C
40 24 2020 4 -4
34 16 2019 1 -9
36 24 2018 2 -5
31 16 2017 -1 -9
39 22 2016 4 -5
32 15 2015 0 -9
29 11 2014 -1 -12
36 22 2013 2 -6
48 30 2012 9 -1
36 20 2011 2 -7
48 30 2010 9 -1
Number of days in March when the temperature in Ottawa dropped to -18 or 0 or below, or rose to at least 21 degrees Celsius
-18 °C
0 °F
0 °C
32 °F
Year 21 °C
70 °F
0 26 2020 0
4 28 2019 0
1 28 2018 0
4 25 2017 0
3 22 2016 0
3 29 2015 0
8 30 2014 0
0 26 2013 0
1 18 2012 5
1 29 2011 0
0 18 2010 0

Rainy Weather iconPrecipitation

This table gives the total precipitation that fell on Ottawa during March in each year from 2010. The number of days with precipitation counts the days when rainfall or snowfall (when melted) amounted to 0.254 millimeters (0.01 inches) or more.

Total precipitation for March in Ottawa
Days Year Inches Milli­metres
15 2020 3.5 89
8 2019 2.4 60
10 2018 1.7 44
9 2017 2.3 57
11 2016 3.9 98
3 2015 1.0 24
7 2014 2.2 55
5 2013 1.3 32
5 2012 1.7 43
5 2011 3.8 97
3 2010 1.4 35

Snowy Weather iconSnow

Amount of snowfall in Ottawa for March and number of days when new snow totalled at least 2.5 centimetres (1 inch)
Days Year Inches Centi­metres
2 2020 5.1 13.0
3 2019 8.3 21.1
5 2018 11.0 27.9
3 2017 13.1 33.3
3 2016 7.7 19.6
3 2015 7.4 18.8
8 2014 17.5 44.5
4 2013 10.9 27.7
1 2012 2.3 5.8
3 2011 12.2 31.0
0 2010 0.0 0.0
Reference

Environment and Climate Change Canada. Historical Climate Data. Historical Data

Jay Lawrimore. 2016. Global Summary of the Month, Version 1.0. NOAA National Centers for Environmental Information. 

Ottawa - Recent Years
Ottawa - Extremes
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