|
Typical Bellingham September Weather 1991–2020 |
||
|---|---|---|
| Average daily high | 67.6 °F | |
| Average daily low | 49.1 °F | |
| Average monthly precipitation | 1.9 inches | |
| Daily chance of precipitation | 36.7% | |
|
Bellingham September Weather Records 1895–2024 |
||
|---|---|---|
| Highest temperature | 89 °F | September 20, 1974 |
| Lowest temperature | 23 °F | September 24, 1926 |
| Highest daily low | 63 °F | September 6, 2017 |
| Lowest daily high | 50 °F | September 26, 1972 |
| Hottest average high temperature | 75.0 °F | 1918 |
| Coldest average high temperature | 62.0 °F | 1895 |
| Most daily precipitation | 2.8 inches | September 1, 1983 |
| Most monthly precipitation | 6.8 inches | 1905 |
| Day | Average (°F) | Record (°F) | ||
|---|---|---|---|---|
| High | Low | High | Low | |
| September 1 | 70.4 | 51.7 | 87 | 38 |
| September 2 | 70.2 | 51.5 | 87 | 32 |
| September 3 | 69.9 | 51.4 | 87 | 34 |
| September 4 | 69.7 | 51.3 | 87 | 37 |
| September 5 | 69.5 | 51.1 | 87 | 34 |
| September 6 | 69.3 | 51.0 | 84 | 34 |
| September 7 | 69.2 | 50.8 | 87 | 35 |
| September 8 | 69.0 | 50.6 | 85 | 30 |
| September 9 | 68.8 | 50.5 | 88 | 36 |
| September 10 | 68.6 | 50.3 | 86 | 31 |
| September 11 | 68.4 | 50.1 | 88 | 37 |
| September 12 | 68.2 | 49.9 | 82 | 31 |
| September 13 | 68.0 | 49.6 | 83 | 33 |
| September 14 | 67.9 | 49.3 | 89 | 30 |
| September 15 | 67.8 | 49.1 | 87 | 32 |
| September 16 | 67.6 | 48.9 | 83 | 33 |
| September 17 | 67.3 | 48.8 | 81 | 34 |
| September 18 | 67.0 | 48.6 | 82 | 30 |
| September 19 | 66.7 | 48.4 | 85 | 28 |
| September 20 | 66.5 | 48.1 | 89 | 29 |
| September 21 | 66.2 | 47.8 | 85 | 28 |
| September 22 | 65.9 | 47.6 | 83 | 29 |
| September 23 | 65.7 | 47.4 | 80 | 30 |
| September 24 | 65.4 | 47.2 | 82 | 23 |
| September 25 | 65.0 | 47.0 | 77 | 24 |
| September 26 | 64.7 | 46.8 | 79 | 28 |
| September 27 | 64.3 | 46.5 | 82 | 28 |
| September 28 | 64.0 | 46.4 | 87 | 30 |
| September 29 | 63.7 | 46.2 | 78 | 26 |
| September 30 | 63.4 | 45.9 | 77 | 29 |