|
Typical Boston September Weather 1991–2020 |
||
|---|---|---|
| Average daily high | 73.4 °F | |
| Average daily low | 58.4 °F | |
| Average monthly precipitation | 3.6 inches | |
| Average monthly snow | none | |
| Daily chance of precipitation | 29.9% | |
| Daily chance of snow | 0% | |
|
Boston September Weather Records 1893–2024 |
||
|---|---|---|
| Highest temperature | 100 °F | September 2, 1953 |
| Lowest temperature | 34 °F | September 29, 1914 |
| Highest daily low | 77 °F | September 1, 2010 |
| Lowest daily high | 51 °F | September 22, 1904 |
| Hottest average high temperature | 79.4 °F | 1983 |
| Coldest average high temperature | 67.8 °F | 1893 |
| Most daily precipitation | 5.6 inches | September 11, 1954 |
| Most monthly precipitation | 10.9 inches | 1933 |
| Most daily snow | none | - |
| Most monthly snow | none | - |
| Day | Average (°F) | Record (°F) | ||
|---|---|---|---|---|
| High | Low | High | Low | |
| September 1 | 77.7 | 62.4 | 95 | 52 |
| September 2 | 77.3 | 62.1 | 100 | 49 |
| September 3 | 77.1 | 61.9 | 97 | 47 |
| September 4 | 76.9 | 61.7 | 94 | 50 |
| September 5 | 76.6 | 61.4 | 92 | 48 |
| September 6 | 76.3 | 61.0 | 97 | 48 |
| September 7 | 76.1 | 60.8 | 95 | 47 |
| September 8 | 75.9 | 60.6 | 96 | 48 |
| September 9 | 75.6 | 60.3 | 93 | 45 |
| September 10 | 75.3 | 60.0 | 95 | 45 |
| September 11 | 75.0 | 59.6 | 99 | 40 |
| September 12 | 74.6 | 59.4 | 93 | 45 |
| September 13 | 74.4 | 59.1 | 93 | 45 |
| September 14 | 74.1 | 58.9 | 92 | 41 |
| September 15 | 73.7 | 58.6 | 94 | 41 |
| September 16 | 73.3 | 58.2 | 96 | 42 |
| September 17 | 72.9 | 57.8 | 91 | 44 |
| September 18 | 72.6 | 57.5 | 90 | 44 |
| September 19 | 72.2 | 57.1 | 92 | 42 |
| September 20 | 71.9 | 56.8 | 97 | 42 |
| September 21 | 71.5 | 56.5 | 94 | 40 |
| September 22 | 71.1 | 56.0 | 94 | 35 |
| September 23 | 70.7 | 55.7 | 96 | 35 |
| September 24 | 70.4 | 55.2 | 90 | 39 |
| September 25 | 70.1 | 54.9 | 89 | 38 |
| September 26 | 69.8 | 54.7 | 93 | 41 |
| September 27 | 69.5 | 54.4 | 86 | 37 |
| September 28 | 69.0 | 54.1 | 87 | 37 |
| September 29 | 68.6 | 53.7 | 88 | 34 |
| September 30 | 68.2 | 53.3 | 87 | 39 |