Lowest October Temperatures in St. Helena
A list of the lowest temperatures ever recorded in the month of
October in
St. Helena, California from 1907–2023.
What's the coldest it has ever gotten in St. Helena in October?
The coldest October temperature in St. Helena, California history was 22 °F which has occurred 6 times, most recently on October 16, 2019.
| Rank |
Temperature |
Date |
| 1 |
22 °F |
October 16, 2019 |
| 1 |
22 °F |
October 15, 2019 |
| 1 |
22 °F |
October 14, 2019 |
| 1 |
22 °F |
October 13, 2019 |
| 1 |
22 °F |
October 12, 2019 |
| 1 |
22 °F |
October 2, 2019 |
| 7 |
23 °F |
October 29, 1946 |
| 8 |
26 °F |
October 28, 1946 |
| 8 |
26 °F |
October 31, 1935 |
| 10 |
27 °F |
October 20, 1949 |
| 10 |
27 °F |
October 30, 1946 |
| 12 |
28 °F |
October 26, 1919 |
| 13 |
29 °F |
October 25, 1939 |
| 14 |
30 °F |
October 24, 1956 |
| 14 |
30 °F |
October 25, 1949 |
| 14 |
30 °F |
October 24, 1949 |
| 14 |
30 °F |
October 22, 1949 |
| 14 |
30 °F |
October 21, 1949 |
| 14 |
30 °F |
October 31, 1946 |
| 14 |
30 °F |
October 26, 1939 |
| 14 |
30 °F |
October 11, 1924 |
| 14 |
30 °F |
October 24, 1919 |