Lowest September Temperatures in San Jose
A list of the lowest temperatures ever recorded in the month of
September in
San Jose, California from 1893–2024.
What's the coldest it has ever gotten in San Jose in September?
The coldest September temperature in San Jose, California history was 35 °F which has occurred twice, most recently on September 23, 1903.
| Rank |
Temperature |
Date |
| 1 |
35 °F |
September 23, 1903 |
| 1 |
35 °F |
September 30, 1893 |
| 3 |
36 °F |
September 22, 1895 |
| 3 |
36 °F |
September 15, 1895 |
| 5 |
37 °F |
September 23, 1895 |
| 5 |
37 °F |
September 13, 1894 |
| 5 |
37 °F |
September 22, 1893 |
| 8 |
38 °F |
September 28, 1894 |
| 8 |
38 °F |
September 26, 1893 |
| 10 |
39 °F |
September 30, 1925 |
| 10 |
39 °F |
September 14, 1894 |
| 10 |
39 °F |
September 23, 1893 |
| 10 |
39 °F |
September 21, 1893 |
| 10 |
39 °F |
September 19, 1893 |
| 15 |
40 °F |
September 13, 1910 |
| 15 |
40 °F |
September 13, 1907 |
| 15 |
40 °F |
September 13, 1903 |
| 15 |
40 °F |
September 24, 1895 |
| 15 |
40 °F |
September 21, 1895 |
| 15 |
40 °F |
September 20, 1895 |
| 15 |
40 °F |
September 17, 1895 |
| 15 |
40 °F |
September 14, 1895 |
| 15 |
40 °F |
September 5, 1895 |
| 15 |
40 °F |
September 30, 1894 |
| 15 |
40 °F |
September 5, 1894 |
| 15 |
40 °F |
September 13, 1893 |