Average temperature in October is 12 °C
Average daytime temperature is 15.7 °C
Average night temperature is 7.9 °C
Absolute maximum temperature: 28.4 °C
Absolute minimum temperature: -2.9 °C
Number of sunny days: 13
Number of rainy days: 16
Number of snow days: 2
Precipitation sum: 89 mm
* Weather data for Portland United States is based on climate observations for 2023 year
| Ottobre (°C) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperature | 28.4 | 27.3 | 27.6 | 25.7 | 22.2 | 17.4 | 12.9 | 11.5 | 12 | 13.4 | 16 | 13.2 | 11.1 | 13.5 | 14.1 | 12.2 | 16 | 17.7 | 16.4 | 14.5 | 14.7 | 10.8 | 15.7 | 24.1 | 21.6 | 18.8 | 19.6 | 9.2 | 4.6 | 2.4 | 2.7 |
| Apparent max temperature | 30 | 27.9 | 26.8 | 24.6 | 22.2 | 15 | 7.5 | 8.3 | 6.8 | 9.3 | 14.8 | 9.2 | 8 | 8.8 | 10.2 | 9.4 | 13.7 | 14.3 | 14.8 | 9.7 | 11.9 | 9.1 | 13.3 | 23 | 20.7 | 18.9 | 19.4 | 4.3 | 0.3 | -2.5 | -2.8 |
| Mean temperature | 22.3 | 21.3 | 21.6 | 23.1 | 18.1 | 12.2 | 8.9 | 8.7 | 7.5 | 9.4 | 10.5 | 11 | 10.6 | 10.4 | 8.8 | 9 | 7.4 | 12.1 | 12.5 | 11.2 | 9.6 | 6.2 | 9 | 17.6 | 18.8 | 17 | 16.7 | 4.6 | 2.8 | 0.2 | 0 |
| Apparent mean temperature | 17.5 | 16.5 | 16 | 19.1 | 12.4 | 5.2 | 1.2 | 3.1 | -0.5 | 1.3 | 3.6 | 6.2 | 6.3 | 5.2 | 0.2 | 1.2 | -1.5 | 5.4 | 7.2 | 4.8 | 2.8 | -1.4 | 1.7 | 10.4 | 15.1 | 14.7 | 6.3 | -2.3 | -2.7 | -8.2 | -6.8 |
| Minimum temperature | 17.3 | 16.1 | 16.1 | 20.9 | 12.9 | 9.6 | 5.7 | 6.4 | 2.9 | 5.4 | 5.3 | 8.8 | 9.5 | 9.3 | 3.8 | 4.3 | 1.4 | 8.8 | 8.6 | 8.2 | 5.1 | 1.8 | 4.5 | 12.2 | 16.1 | 14.3 | 10.6 | 1.9 | 1.6 | -2.9 | -1.4 |
| Apparent min temperature | 22.9 | 21.8 | 21.6 | 22 | 17 | 7.8 | 4.3 | 5.6 | 3.7 | 5.1 | 8.6 | 7.7 | 7 | 6.4 | 5.2 | 5.7 | 5.1 | 9.1 | 10.8 | 7.7 | 6.9 | 3.3 | 5.9 | 16.1 | 17.9 | 16.9 | 15.9 | 0.2 | -1.7 | -5 | -5.2 |
| Ottobre | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight duration (h) | 11.8 | 11.7 | 11.7 | 11.6 | 11.6 | 11.5 | 11.5 | 11.4 | 11.4 | 11.3 | 11.3 | 11.2 | 11.2 | 11.1 | 11.1 | 11 | 11 | 10.9 | 10.9 | 10.8 | 10.8 | 10.7 | 10.7 | 10.7 | 10.6 | 10.6 | 10.5 | 10.5 | 10.4 | 10.4 | 10.3 |
| Sunshine duration (h) | 10.7 | 10.7 | 10.6 | 10.6 | 10.1 | 5.3 | 9.6 | 6.6 | 10.4 | 8.9 | 10.2 | 0 | 0 | 2.7 | 8.5 | 9.9 | 9.7 | 7.2 | 7.6 | 9.7 | 6 | 9.7 | 7.2 | 8 | 2.8 | 0.2 | 0.1 | 6.1 | 0 | 9.4 | 9.1 |
| Precipitation (mm) | 0 | 0 | 0 | 0.1 | 0 | 2.3 | 0.7 | 0 | 0 | 0 | 0 | 0.6 | 30 | 20.5 | 0 | 0 | 0 | 0.8 | 2.1 | 0.9 | 0.8 | 0.1 | 1.7 | 1.4 | 4.1 | 17.3 | 3.7 | 0 | 0.1 | 0 | 2.3 |
| Precipitation hours | 0 | 0 | 0 | 1 | 0 | 7 | 2 | 0 | 0 | 0 | 0 | 4 | 24 | 20 | 0 | 0 | 0 | 2 | 6 | 2 | 2 | 1 | 2 | 3 | 9 | 16 | 10 | 0 | 1 | 0 | 9 |
| Wind speed (m/s) | 15 | 13.4 | 19.5 | 27.5 | 23.9 | 24.5 | 23.7 | 13.9 | 18.7 | 16.8 | 7.4 | 21.9 | 29.3 | 26.2 | 21.3 | 18.1 | 11.5 | 24.3 | 18.1 | 23.6 | 22.7 | 18 | 26.7 | 25.3 | 25.9 | 21.3 | 24.8 | 21.4 | 17 | 22.2 | 23.4 |
In October 2023, the highest daytime temperature in Portland was 28.4°C.
While the minimum temperature at night dropped to -2.9°C.
The average nighttime and daytime temperatures during October in Portland are 7.9°C and 15.7°C respectively.
The precipitation sum in October is about 89 mm.