Highest October Temperatures in St. Helena
A list of the highest temperatures ever recorded in the month of
October in
St. Helena, California from 1907–2023.
What's the hottest it has ever gotten in St. Helena in October?
The hottest October temperature in St. Helena, California history was 104 °F which has occurred twice, most recently on October 5, 1933.
| Rank |
Temperature |
Date |
| 1 |
104 °F |
October 5, 1933 |
| 1 |
104 °F |
October 3, 1917 |
| 3 |
103 °F |
October 8, 1996 |
| 3 |
103 °F |
October 10, 1991 |
| 3 |
103 °F |
October 1, 1952 |
| 3 |
103 °F |
October 4, 1933 |
| 7 |
102 °F |
October 9, 1996 |
| 8 |
101 °F |
October 1, 1970 |
| 8 |
101 °F |
October 7, 1965 |
| 8 |
101 °F |
October 14, 1961 |
| 8 |
101 °F |
October 2, 1952 |
| 8 |
101 °F |
October 6, 1930 |
| 13 |
100 °F |
October 3, 1991 |
| 13 |
100 °F |
October 3, 1985 |
| 13 |
100 °F |
October 15, 1961 |
| 16 |
99 °F |
October 17, 2020 |
| 16 |
99 °F |
October 24, 2017 |
| 16 |
99 °F |
October 1, 2001 |
| 16 |
99 °F |
October 4, 1985 |
| 16 |
99 °F |
October 9, 1958 |
| 16 |
99 °F |
October 17, 1933 |