Highest September Temperatures in Watertown
A list of the highest temperatures ever recorded in the month of
September in
Watertown, South Dakota from 1893–2024.
What's the hottest it has ever gotten in Watertown in September?
The hottest September temperature in Watertown, South Dakota history was 104 °F which occurred on September 10, 1931.
| Rank |
Temperature |
Date |
| 1 |
104 °F |
September 10, 1931 |
| 2 |
103 °F |
September 9, 1931 |
| 3 |
101 °F |
September 3, 2023 |
| 3 |
101 °F |
September 7, 1933 |
| 3 |
101 °F |
September 4, 1933 |
| 3 |
101 °F |
September 6, 1893 |
| 3 |
101 °F |
September 3, 1893 |
| 8 |
100 °F |
September 6, 1976 |
| 9 |
99 °F |
September 4, 2023 |
| 9 |
99 °F |
September 6, 1970 |
| 9 |
99 °F |
September 5, 1945 |
| 9 |
99 °F |
September 22, 1936 |
| 13 |
98 °F |
September 5, 1933 |
| 13 |
98 °F |
September 8, 1931 |
| 13 |
98 °F |
September 2, 1929 |
| 13 |
98 °F |
September 6, 1913 |
| 13 |
98 °F |
September 5, 1913 |
| 13 |
98 °F |
September 2, 1913 |
| 13 |
98 °F |
September 5, 1893 |
| 20 |
97 °F |
September 8, 1983 |
| 20 |
97 °F |
September 2, 1983 |
| 20 |
97 °F |
September 7, 1978 |
| 20 |
97 °F |
September 5, 1978 |
| 20 |
97 °F |
September 8, 1959 |
| 20 |
97 °F |
September 8, 1947 |
| 20 |
97 °F |
September 21, 1936 |
| 20 |
97 °F |
September 3, 1925 |
| 20 |
97 °F |
September 6, 1922 |
| 20 |
97 °F |
September 4, 1922 |
| 20 |
97 °F |
September 7, 1913 |