|
Typical Bismarck September Weather 1991–2020 |
||
|---|---|---|
| Average daily high | 73.4 °F | |
| Average daily low | 46.0 °F | |
| Average monthly precipitation | 1.7 inches | |
| Average monthly snow | none | |
| Daily chance of precipitation | 24.2% | |
| Daily chance of snow | 0% | |
|
Bismarck September Weather Records 1913–2024 |
||
|---|---|---|
| Highest temperature | 105 °F | September 8, 1959 |
| Lowest temperature | 11 °F | September 30, 1974 |
| Highest daily low | 70 °F | September 1, 1921 |
| Lowest daily high | 34 °F | September 25, 1942 |
| Hottest average high temperature | 80.9 °F | 1948 |
| Coldest average high temperature | 57.2 °F | 1965 |
| Most daily precipitation | 4.3 inches | September 15, 1994 |
| Most monthly precipitation | 6.9 inches | 1977 |
| Most daily snow | 4.0 inches | September 26, 1942 |
| Most monthly snow | 5.0 inches | 1984 |
| Day | Average (°F) | Record (°F) | ||
|---|---|---|---|---|
| High | Low | High | Low | |
| September 1 | 79.7 | 51.9 | 103 | 32 |
| September 2 | 79.4 | 51.6 | 102 | 33 |
| September 3 | 79.1 | 51.3 | 101 | 28 |
| September 4 | 78.7 | 51.0 | 100 | 32 |
| September 5 | 78.2 | 50.6 | 104 | 30 |
| September 6 | 77.7 | 50.2 | 103 | 32 |
| September 7 | 77.1 | 49.8 | 104 | 34 |
| September 8 | 76.5 | 49.2 | 105 | 32 |
| September 9 | 76.0 | 48.7 | 99 | 26 |
| September 10 | 75.7 | 48.3 | 100 | 28 |
| September 11 | 75.3 | 47.9 | 97 | 20 |
| September 12 | 74.9 | 47.5 | 96 | 28 |
| September 13 | 74.4 | 47.1 | 97 | 27 |
| September 14 | 74.0 | 46.6 | 95 | 26 |
| September 15 | 73.6 | 46.2 | 103 | 23 |
| September 16 | 73.1 | 45.8 | 94 | 26 |
| September 17 | 72.7 | 45.3 | 96 | 27 |
| September 18 | 72.1 | 44.8 | 97 | 25 |
| September 19 | 71.5 | 44.3 | 94 | 23 |
| September 20 | 70.8 | 43.8 | 95 | 22 |
| September 21 | 70.2 | 43.5 | 92 | 23 |
| September 22 | 69.7 | 43.0 | 94 | 20 |
| September 23 | 69.3 | 42.6 | 95 | 24 |
| September 24 | 68.9 | 42.2 | 89 | 25 |
| September 25 | 68.3 | 41.7 | 93 | 16 |
| September 26 | 67.9 | 41.2 | 96 | 16 |
| September 27 | 67.5 | 40.8 | 98 | 18 |
| September 28 | 67.0 | 40.4 | 98 | 19 |
| September 29 | 66.5 | 39.8 | 90 | 22 |
| September 30 | 65.8 | 39.4 | 95 | 11 |