Lowest September Temperatures in Seattle
A list of the lowest temperatures ever recorded in the month of
September in
Seattle, Washington from 1894–2024.
What's the coldest it has ever gotten in Seattle in September?
The coldest September temperature in Seattle, Washington history was 35 °F which occurred on September 27, 1972.
| Rank |
Temperature |
Date |
| 1 |
35 °F |
September 27, 1972 |
| 2 |
36 °F |
September 25, 1972 |
| 2 |
36 °F |
September 30, 1950 |
| 2 |
36 °F |
September 25, 1908 |
| 2 |
36 °F |
September 21, 1895 |
| 6 |
37 °F |
September 22, 1955 |
| 6 |
37 °F |
September 29, 1954 |
| 6 |
37 °F |
September 25, 1948 |
| 9 |
38 °F |
September 28, 1950 |
| 9 |
38 °F |
September 24, 1948 |
| 11 |
39 °F |
September 29, 1983 |
| 11 |
39 °F |
September 26, 1972 |
| 11 |
39 °F |
September 29, 1961 |
| 11 |
39 °F |
September 21, 1960 |
| 11 |
39 °F |
September 25, 1955 |
| 11 |
39 °F |
September 24, 1955 |
| 11 |
39 °F |
September 21, 1955 |
| 11 |
39 °F |
September 13, 1952 |
| 11 |
39 °F |
September 10, 1952 |
| 11 |
39 °F |
September 29, 1948 |
| 11 |
39 °F |
September 25, 1933 |