Highest September Temperatures in Lewiston
A list of the highest temperatures ever recorded in the month of
September in
Lewiston, Idaho from 1894–2024.
What's the hottest it has ever gotten in Lewiston in September?
The hottest September temperature in Lewiston, Idaho history was 108 °F which occurred on September 7, 1944.
| Rank |
Temperature |
Date |
| 1 |
108 °F |
September 7, 1944 |
| 2 |
106 °F |
September 8, 1944 |
| 3 |
105 °F |
September 3, 1938 |
| 4 |
103 °F |
September 2, 1950 |
| 4 |
103 °F |
September 12, 1944 |
| 4 |
103 °F |
September 10, 1944 |
| 4 |
103 °F |
September 6, 1944 |
| 4 |
103 °F |
September 4, 1938 |
| 9 |
102 °F |
September 2, 2022 |
| 9 |
102 °F |
September 3, 1998 |
| 9 |
102 °F |
September 11, 1944 |
| 9 |
102 °F |
September 9, 1944 |
| 9 |
102 °F |
September 21, 1939 |
| 9 |
102 °F |
September 2, 1938 |
| 9 |
102 °F |
September 1, 1938 |
| 16 |
101 °F |
September 4, 2020 |
| 16 |
101 °F |
September 5, 1973 |
| 16 |
101 °F |
September 21, 1967 |
| 16 |
101 °F |
September 5, 1942 |
| 16 |
101 °F |
September 19, 1938 |
| 16 |
101 °F |
September 18, 1938 |
| 16 |
101 °F |
September 16, 1937 |
| 16 |
101 °F |
September 12, 1937 |
| 16 |
101 °F |
September 10, 1935 |