|
Typical Portland October Weather 1991–2020 |
||
|---|---|---|
| Average daily high | 59.2 °F | |
| Average daily low | 40.3 °F | |
| Average monthly precipitation | 5.2 inches | |
| Average monthly snow | 0.2 inches | |
| Daily chance of precipitation | 35.2% | |
| Daily chance of snow | 0.32% | |
|
Portland October Weather Records 1871–2024 |
||
|---|---|---|
| Highest temperature | 88 °F | October 7, 1963 |
| Lowest temperature | 15 °F | October 28, 1976 |
| Highest daily low | 68 °F | October 16, 1897 |
| Lowest daily high | 36 °F | October 29, 2000 |
| Hottest average high temperature | 69.6 °F | 1947 |
| Coldest average high temperature | 50.5 °F | 1888 |
| Most daily precipitation | 11.7 inches | October 21, 1996 |
| Most monthly precipitation | 16.9 inches | 1996 |
| Most daily snow | 3.6 inches | October 22, 1969 |
| Most monthly snow | 5.2 inches | 2011 |
| Day | Average (°F) | Record (°F) | ||
|---|---|---|---|---|
| High | Low | High | Low | |
| October 1 | 65.0 | 45.7 | 85 | 27 |
| October 2 | 64.7 | 45.4 | 85 | 27 |
| October 3 | 64.3 | 45.0 | 82 | 29 |
| October 4 | 64.0 | 44.6 | 82 | 27 |
| October 5 | 63.6 | 44.3 | 83 | 26 |
| October 6 | 63.2 | 44.0 | 84 | 23 |
| October 7 | 62.8 | 43.6 | 88 | 24 |
| October 8 | 62.3 | 43.2 | 83 | 24 |
| October 9 | 61.8 | 42.9 | 85 | 22 |
| October 10 | 61.5 | 42.6 | 84 | 23 |
| October 11 | 61.2 | 42.2 | 78 | 24 |
| October 12 | 60.7 | 41.7 | 81 | 18 |
| October 13 | 60.3 | 41.3 | 84 | 26 |
| October 14 | 59.9 | 40.9 | 79 | 20 |
| October 15 | 59.5 | 40.6 | 84 | 24 |
| October 16 | 59.2 | 40.3 | 84 | 25 |
| October 17 | 58.9 | 40.0 | 84 | 26 |
| October 18 | 58.5 | 39.7 | 82 | 23 |
| October 19 | 58.1 | 39.4 | 81 | 21 |
| October 20 | 57.8 | 39.2 | 79 | 24 |
| October 21 | 57.4 | 38.8 | 79 | 19 |
| October 22 | 57.0 | 38.6 | 81 | 20 |
| October 23 | 56.7 | 38.4 | 83 | 22 |
| October 24 | 56.3 | 38.1 | 81 | 22 |
| October 25 | 55.9 | 37.7 | 76 | 20 |
| October 26 | 55.5 | 37.3 | 79 | 18 |
| October 27 | 55.2 | 37.1 | 81 | 20 |
| October 28 | 54.8 | 36.8 | 80 | 15 |
| October 29 | 54.4 | 36.4 | 75 | 20 |
| October 30 | 54.0 | 36.0 | 71 | 19 |
| October 31 | 53.6 | 35.6 | 80 | 18 |