Lowest September Temperatures in Interior
A list of the lowest temperatures ever recorded in the month of
September in
Interior, South Dakota from 1949–2024.
What's the coldest it has ever gotten in Interior in September?
The coldest September temperature in Interior, South Dakota history was 25 °F which has occurred twice, most recently on September 26, 1972.
| Rank |
Temperature |
Date |
| 1 |
25 °F |
September 26, 1972 |
| 1 |
25 °F |
September 20, 1964 |
| 3 |
26 °F |
September 28, 1976 |
| 4 |
27 °F |
September 19, 1991 |
| 4 |
27 °F |
September 24, 1985 |
| 4 |
27 °F |
September 30, 1974 |
| 7 |
28 °F |
September 22, 1995 |
| 7 |
28 °F |
September 14, 1993 |
| 7 |
28 °F |
September 26, 1965 |
| 10 |
29 °F |
September 21, 1995 |
| 10 |
29 °F |
September 18, 1991 |
| 10 |
29 °F |
September 27, 1967 |
| 10 |
29 °F |
September 24, 1965 |
| 14 |
30 °F |
September 28, 1985 |
| 14 |
30 °F |
September 27, 1964 |
| 14 |
30 °F |
September 30, 1960 |
| 17 |
31 °F |
September 12, 2014 |
| 17 |
31 °F |
September 19, 2006 |
| 17 |
31 °F |
September 24, 2000 |
| 17 |
31 °F |
September 26, 1996 |
| 17 |
31 °F |
September 28, 1992 |
| 17 |
31 °F |
September 29, 1985 |
| 17 |
31 °F |
September 30, 1961 |
| 17 |
31 °F |
September 30, 1959 |