Highest September Temperatures in Vacaville
A list of the highest temperatures ever recorded in the month of
September in
Vacaville, California from 1893–2024.
What's the hottest it has ever gotten in Vacaville in September?
The hottest September temperature in Vacaville, California history was 115 °F which has occurred twice, most recently on September 6, 2022.
| Rank |
Temperature |
Date |
| 1 |
115 °F |
September 6, 2022 |
| 1 |
115 °F |
September 5, 2022 |
| 3 |
112 °F |
September 7, 2020 |
| 3 |
112 °F |
September 1, 2017 |
| 3 |
112 °F |
September 3, 1955 |
| 3 |
112 °F |
September 3, 1950 |
| 3 |
112 °F |
September 2, 1950 |
| 3 |
112 °F |
September 9, 1944 |
| 9 |
111 °F |
September 8, 2022 |
| 9 |
111 °F |
September 7, 2022 |
| 9 |
111 °F |
September 6, 2020 |
| 9 |
111 °F |
September 2, 1955 |
| 9 |
111 °F |
September 8, 1944 |
| 14 |
110 °F |
September 2, 2017 |
| 14 |
110 °F |
September 10, 2015 |
| 14 |
110 °F |
September 1, 1950 |
| 17 |
109 °F |
September 5, 1988 |
| 17 |
109 °F |
September 7, 1957 |
| 17 |
109 °F |
September 1, 1955 |
| 17 |
109 °F |
September 13, 1953 |
| 17 |
109 °F |
September 4, 1950 |
| 17 |
109 °F |
September 7, 1923 |