Saint John September Weather
Typical Saint John September Weather
1991–2020
|
Average daily high |
19.0 °C |
Average daily low |
7.5 °C |
Average monthly precipitation |
11.0 cm |
Average monthly snow |
none |
Daily chance of precipitation |
35.5% |
Daily chance of snow |
0% |
Note: Daily averages are a moving average which includes 14 days before and after
Day |
Average (°C) |
Record (°C) |
High |
Low |
High |
Low |
September 1 |
21.3 |
9.5 |
33.1 |
0.8 |
September 2 |
21.2 |
9.4 |
31.3 |
-0.6 |
September 3 |
21.0 |
9.3 |
31.0 |
-0.6 |
September 4 |
20.8 |
9.1 |
29.1 |
-1.1 |
September 5 |
20.7 |
8.9 |
29.4 |
1.1 |
September 6 |
20.5 |
8.7 |
28.9 |
-0.3 |
September 7 |
20.4 |
8.6 |
26.1 |
1.1 |
September 8 |
20.3 |
8.5 |
33.9 |
0.6 |
September 9 |
20.1 |
8.4 |
26.7 |
1.0 |
September 10 |
20.0 |
8.3 |
30.9 |
-0.9 |
September 11 |
19.8 |
8.1 |
27.8 |
-4.4 |
September 12 |
19.6 |
7.9 |
26.6 |
-2.2 |
September 13 |
19.4 |
7.8 |
25.5 |
-1.1 |
September 14 |
19.3 |
7.7 |
28.3 |
-1.1 |
September 15 |
19.1 |
7.6 |
24.4 |
-1.1 |
September 16 |
18.9 |
7.4 |
26.7 |
-1.8 |
September 17 |
18.7 |
7.3 |
27.4 |
-4.4 |
September 18 |
18.5 |
7.2 |
26.2 |
-0.7 |
September 19 |
18.3 |
7.0 |
27.0 |
-2.1 |
September 20 |
18.1 |
6.9 |
27.8 |
-2.8 |
September 21 |
17.9 |
6.7 |
28.9 |
-3.9 |
September 22 |
17.7 |
6.5 |
23.9 |
-1.7 |
September 23 |
17.5 |
6.3 |
25.7 |
-2.8 |
September 24 |
17.3 |
6.0 |
26.1 |
-5.0 |
September 25 |
17.1 |
5.9 |
25.9 |
-3.2 |
September 26 |
17.0 |
5.8 |
26.1 |
-2.2 |
September 27 |
16.8 |
5.6 |
25.6 |
-2.4 |
September 28 |
16.6 |
5.5 |
24.0 |
-2.8 |
September 29 |
16.4 |
5.3 |
22.8 |
-6.7 |
September 30 |
16.3 |
5.1 |
23.3 |
-3.9 |