Saint John July Weather

Averages and records for weather in Saint John, New Brunswick in the month of July.
Typical Saint John July Weather
1991–2020
Average daily high 23.1 °C
Average daily low 11.5 °C
Average monthly precipitation 8.6 cm
Average monthly snow none
Daily chance of precipitation 35.9%
Daily chance of snow 0%
Saint John July Weather Records
1871–2024
Highest temperature 33.7 °C July 5, 2013
Lowest temperature 1.1 °C July 8, 1948
Highest daily low 20.6 °C July 7, 1908
Lowest daily high 11.9 °C July 5, 1979
Hottest average high temperature 25.2 °C 1952
Coldest average high temperature 18.0 °C 1881
Most daily precipitation 8.7 cm July 9, 2021
Most monthly precipitation 30.0 cm 2023
Most daily snow none -
Most monthly snow none -
Note: Daily averages are a moving average which includes 14 days before and after
Day Average (°C) Record (°C)
High Low High Low
July 1 22.1 10.3 30.0 4.8
July 2 22.2 10.5 30.0 4.4
July 3 22.3 10.6 31.7 3.3
July 4 22.4 10.7 31.9 5.0
July 5 22.4 10.8 33.7 5.0
July 6 22.5 10.9 30.0 3.9
July 7 22.6 11.0 30.6 2.8
July 8 22.7 11.0 30.6 1.1
July 9 22.7 11.1 32.2 2.2
July 10 22.7 11.3 27.8 4.2
July 11 22.8 11.3 28.9 6.1
July 12 22.8 11.3 30.8 3.3
July 13 22.9 11.4 29.7 5.5
July 14 22.9 11.5 29.3 4.7
July 15 23.0 11.6 31.9 3.3
July 16 23.1 11.6 32.2 5.0
July 17 23.2 11.6 31.1 4.8
July 18 23.3 11.6 30.0 7.8
July 19 23.3 11.7 29.8 6.0
July 20 23.3 11.7 32.7 6.4
July 21 23.4 11.8 31.1 5.5
July 22 23.4 11.8 28.6 6.6
July 23 23.4 11.8 30.0 5.1
July 24 23.5 11.8 31.7 4.9
July 25 23.6 11.8 31.7 5.1
July 26 23.6 11.8 32.8 4.9
July 27 23.5 11.8 31.3 6.4
July 28 23.5 11.9 31.7 5.3
July 29 23.5 11.9 30.6 5.3
July 30 23.5 11.9 28.6 6.5
July 31 23.5 11.9 30.0 5.8
Weather Station Details
Years Station Coordinates
2012–2024 Saint John location
1947–2012 Saint John A location
1871–1946 Saint John location