Highest September Temperatures in Rapid City
A list of the highest temperatures ever recorded in the month of
September in
Rapid City, South Dakota from 1948–2024.
What's the hottest it has ever gotten in Rapid City in September?
The hottest September temperature in Rapid City, South Dakota history was 104 °F which has occurred 4 times, most recently on September 5, 2020.
| Rank |
Temperature |
Date |
| 1 |
104 °F |
September 5, 2020 |
| 1 |
104 °F |
September 6, 1978 |
| 1 |
104 °F |
September 4, 1960 |
| 1 |
104 °F |
September 2, 1960 |
| 5 |
103 °F |
September 2, 2023 |
| 5 |
103 °F |
September 4, 2001 |
| 5 |
103 °F |
September 8, 1959 |
| 5 |
103 °F |
September 15, 1948 |
| 9 |
102 °F |
September 9, 1994 |
| 9 |
102 °F |
September 9, 1979 |
| 11 |
101 °F |
September 1, 2012 |
| 11 |
101 °F |
September 17, 2000 |
| 11 |
101 °F |
September 5, 1978 |
| 11 |
101 °F |
September 2, 1971 |
| 15 |
100 °F |
September 10, 2012 |
| 15 |
100 °F |
September 3, 2005 |
| 15 |
100 °F |
September 5, 2002 |
| 15 |
100 °F |
September 5, 2000 |
| 15 |
100 °F |
September 9, 1998 |
| 15 |
100 °F |
September 4, 1998 |
| 15 |
100 °F |
September 4, 1978 |
| 15 |
100 °F |
September 6, 1976 |
| 15 |
100 °F |
September 14, 1948 |
| 15 |
100 °F |
September 3, 1948 |