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Saint John March Weather

Averages and records for weather in Saint John, New Brunswick in the month of March.

Typical Saint John March Weather 1991–2020
Average daily high	2.6 °C
Average daily low	-7.6 °C
Average monthly precipitation	10.9 cm
Average monthly snow	40.1 cm
Daily chance of precipitation	46.0%
Daily chance of snow	31.5%

Saint John March Weather Records 1871–2024
Highest temperature	25.4 °C	March 21, 2012
Lowest temperature	-30.0 °C	March 14, 1948
Highest daily low	8.2 °C	March 28, 2024
Lowest daily high	-16.1 °C	March 6, 1872
Hottest average high temperature	6.8 °C	1946
Coldest average high temperature	-2.5 °C	1885
Most daily precipitation	11.0 cm	March 13, 1920
Most monthly precipitation	29.9 cm	2024
Most daily snow	58.4 cm	March 30, 1878
Most monthly snow	124.8 cm	1956

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	0.4	-9.9	9.4	-24.1
March 2	0.5	-9.7	9.4	-25.6
March 3	0.6	-9.6	9.9	-24.3
March 4	0.7	-9.5	10.2	-28.4
March 5	0.8	-9.4	10.6	-25.8
March 6	0.9	-9.3	11.6	-29.4
March 7	1.0	-9.2	11.7	-25.9
March 8	1.2	-9.1	11.7	-27.5
March 9	1.2	-9.0	12.1	-29.4
March 10	1.4	-8.8	11.3	-22.8
March 11	1.5	-8.7	11.6	-21.1
March 12	1.6	-8.6	12.8	-23.9
March 13	1.8	-8.4	10.9	-27.2
March 14	2.0	-8.2	12.2	-30.0
March 15	2.3	-7.9	13.9	-20.9
March 16	2.6	-7.5	11.4	-18.3
March 17	2.7	-7.3	13.9	-21.7
March 18	2.9	-7.1	16.1	-19.4
March 19	3.1	-6.9	12.8	-26.1
March 20	3.3	-6.6	15.1	-22.8
March 21	3.5	-6.4	25.4	-22.8
March 22	3.7	-6.1	25.1	-20.2
March 23	3.8	-5.9	12.8	-23.9
March 24	4.0	-5.7	13.3	-17.0
March 25	4.2	-5.5	14.9	-19.8
March 26	4.4	-5.3	12.8	-17.2
March 27	4.5	-5.1	16.7	-15.0
March 28	4.8	-4.9	17.5	-15.7
March 29	5.0	-4.7	17.1	-22.8
March 30	5.2	-4.6	14.7	-14.6
March 31	5.4	-4.4	17.4	-17.8

Weather Station Details

Years	Station	Coordinates
2012–2024	Saint John	location
1947–2012	Saint John A	location
1871–1946	Saint John	location