< Previous Month Next Month >

Ottawa March Weather

Averages and records for weather in Ottawa, Ontario in the month of March.

Typical Ottawa March Weather 1991–2020
Average daily high	2.6 °C
Average daily low	-6.7 °C
Average monthly precipitation	6.1 cm
Average monthly snow	30.6 cm
Daily chance of precipitation	36.3%
Daily chance of snow	22.7%

Ottawa March Weather Records 1889–2024
Highest temperature	26.7 °C	March 21, 2012
Lowest temperature	-36.7 °C	March 4, 1938
Highest daily low	10.7 °C	March 22, 2012
Lowest daily high	-18.3 °C	March 3, 1950
Hottest average high temperature	8.9 °C	2012
Coldest average high temperature	-2.7 °C	1923
Most daily precipitation	4.9 cm	March 12, 1962
Most monthly precipitation	14.4 cm	1899
Most daily snow	48.3 cm	March 2, 1947
Most monthly snow	116.6 cm	1899

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°C)		Record (°C)
Day	High	Low	High	Low
March 1	-0.8	-10.0	8.3	-28.3
March 2	-0.7	-9.8	9.1	-28.9
March 3	-0.4	-9.6	10.6	-30.0
March 4	-0.2	-9.4	12.0	-36.7
March 5	0.0	-9.2	17.0	-26.1
March 6	0.2	-9.0	15.0	-28.3
March 7	0.3	-8.8	12.0	-26.5
March 8	0.5	-8.7	12.6	-26.4
March 9	0.6	-8.6	19.0	-28.9
March 10	0.8	-8.4	12.8	-25.8
March 11	1.1	-8.2	14.5	-24.4
March 12	1.3	-8.0	11.9	-26.6
March 13	1.6	-7.7	15.7	-24.4
March 14	1.9	-7.4	17.4	-26.7
March 15	2.3	-7.0	14.0	-25.0
March 16	2.6	-6.7	15.5	-23.3
March 17	2.9	-6.4	16.5	-23.9
March 18	3.1	-6.1	24.7	-27.2
March 19	3.5	-5.7	24.9	-22.8
March 20	3.7	-5.4	25.5	-22.8
March 21	4.0	-5.1	26.7	-21.7
March 22	4.2	-4.9	24.0	-23.3
March 23	4.4	-4.7	20.0	-24.4
March 24	4.6	-4.5	18.7	-22.8
March 25	4.8	-4.2	19.5	-20.0
March 26	5.1	-4.0	21.7	-21.7
March 27	5.4	-3.8	21.7	-17.8
March 28	5.6	-3.5	25.6	-21.1
March 29	5.9	-3.3	25.0	-25.0
March 30	6.2	-3.1	24.0	-13.4
March 31	6.5	-2.8	22.0	-17.8

Weather Station Details

Years	Station	Coordinates
1889–2024	Ottawa CDA	location