|
Typical Indianapolis September Weather 1991–2020 |
||
|---|---|---|
| Average daily high | 78.3 °F | |
| Average daily low | 57.5 °F | |
| Average monthly precipitation | 3.1 inches | |
| Average monthly snow | none | |
| Daily chance of precipitation | 26.3% | |
| Daily chance of snow | 0% | |
|
Indianapolis September Weather Records 1901–2024 |
||
|---|---|---|
| Highest temperature | 105 °F | September 15, 1939 |
| Lowest temperature | 24 °F | September 28, 1942 |
| Highest daily low | 75 °F | September 1, 2012 |
| Lowest daily high | 49 °F | September 22, 1913 |
| Hottest average high temperature | 87.1 °F | 1939 |
| Coldest average high temperature | 70.5 °F | 1974 |
| Most daily precipitation | 7.2 inches | September 1, 2003 |
| Most monthly precipitation | 12.9 inches | 1926 |
| Most daily snow | none | - |
| Most monthly snow | none | - |
| Day | Average (°F) | Record (°F) | ||
|---|---|---|---|---|
| High | Low | High | Low | |
| September 1 | 82.6 | 62.6 | 100 | 40 |
| September 2 | 82.4 | 62.3 | 100 | 41 |
| September 3 | 82.2 | 62.0 | 100 | 31 |
| September 4 | 82.0 | 61.7 | 100 | 43 |
| September 5 | 81.8 | 61.5 | 101 | 38 |
| September 6 | 81.6 | 61.2 | 100 | 37 |
| September 7 | 81.4 | 61.0 | 98 | 42 |
| September 8 | 81.0 | 60.6 | 98 | 37 |
| September 9 | 80.7 | 60.3 | 99 | 41 |
| September 10 | 80.4 | 59.9 | 96 | 34 |
| September 11 | 80.0 | 59.5 | 96 | 37 |
| September 12 | 79.6 | 59.1 | 95 | 40 |
| September 13 | 79.2 | 58.6 | 102 | 35 |
| September 14 | 78.9 | 58.2 | 103 | 30 |
| September 15 | 78.5 | 57.7 | 105 | 34 |
| September 16 | 78.2 | 57.2 | 101 | 29 |
| September 17 | 77.9 | 56.8 | 96 | 33 |
| September 18 | 77.5 | 56.4 | 95 | 34 |
| September 19 | 77.1 | 56.0 | 97 | 29 |
| September 20 | 76.7 | 55.7 | 95 | 35 |
| September 21 | 76.3 | 55.3 | 96 | 34 |
| September 22 | 75.9 | 54.9 | 93 | 35 |
| September 23 | 75.6 | 54.4 | 94 | 31 |
| September 24 | 75.3 | 54.0 | 92 | 29 |
| September 25 | 74.9 | 53.7 | 91 | 30 |
| September 26 | 74.6 | 53.3 | 91 | 26 |
| September 27 | 74.2 | 52.9 | 93 | 32 |
| September 28 | 73.8 | 52.5 | 90 | 24 |
| September 29 | 73.4 | 52.1 | 97 | 26 |
| September 30 | 73.0 | 51.7 | 92 | 28 |