Lowest September Temperatures in Riverside
A list of the lowest temperatures ever recorded in the month of
September in
Riverside, California from 1893–2024.
What's the coldest it has ever gotten in Riverside in September?
The coldest September temperature in Riverside, California history was 37 °F which occurred on September 15, 1902.
| Rank |
Temperature |
Date |
| 1 |
37 °F |
September 15, 1902 |
| 2 |
39 °F |
September 26, 1948 |
| 3 |
40 °F |
September 27, 1948 |
| 3 |
40 °F |
September 26, 1934 |
| 3 |
40 °F |
September 12, 1916 |
| 6 |
41 °F |
September 23, 1941 |
| 6 |
41 °F |
September 25, 1934 |
| 6 |
41 °F |
September 27, 1915 |
| 6 |
41 °F |
September 29, 1909 |
| 6 |
41 °F |
September 29, 1905 |
| 6 |
41 °F |
September 29, 1902 |
| 6 |
41 °F |
September 14, 1901 |
| 6 |
41 °F |
September 29, 1894 |
| 14 |
42 °F |
September 30, 1948 |
| 14 |
42 °F |
September 18, 1933 |
| 14 |
42 °F |
September 19, 1925 |
| 14 |
42 °F |
September 21, 1924 |
| 14 |
42 °F |
September 27, 1923 |
| 14 |
42 °F |
September 24, 1923 |
| 14 |
42 °F |
September 27, 1916 |
| 14 |
42 °F |
September 13, 1916 |
| 14 |
42 °F |
September 30, 1915 |
| 14 |
42 °F |
September 28, 1915 |
| 14 |
42 °F |
September 27, 1913 |
| 14 |
42 °F |
September 5, 1912 |
| 14 |
42 °F |
September 4, 1912 |
| 14 |
42 °F |
September 27, 1904 |