Average annual temperature is 12.4 °C
Absolute maximum temperature: 41.6 °C
Absolute minimum temperature: -11.7 °C
Number of sunny days: 172
Number of rainy days: 193
Number of snow days:
Average annual precipitation: 1368 mm
Look at detailed online map of Portland
* Weather data for Portland United States is based on climate observations for 2023 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 11.7 | 13.4 | 17.8 | 26.4 | 30.4 | 31.7 | 35.9 | 41.6 | 33.3 | 27 | 17.6 | 16.1 |
| Average daytime temperature (°C) | 8.4 | 8 | 10.8 | 13.9 | 23 | 25.6 | 30.6 | 31.5 | 24.5 | 18.3 | 11.7 | 10.1 |
| Average temperature (°C) | 5.4 | 3.6 | 5.5 | 8.8 | 15.8 | 17.5 | 21.9 | 23.1 | 17.6 | 13.1 | 8 | 7.2 |
| Average night temperature (°C) | 2.8 | 0.6 | 2.1 | 5 | 10.3 | 11.5 | 15 | 16.7 | 12.7 | 9.9 | 5.4 | 5.3 |
| Absolute minimum temperature (°C) | -4 | -11.7 | -1.7 | -0.4 | 6.3 | 7.5 | 11.8 | 12.1 | 8.6 | 2 | -1.8 | 0.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.7 | 11.1 | 12.7 | 14.3 | 15.4 | 15.7 | 15.6 | 14.8 | 13.3 | 11.7 | 10.2 | 9 |
| Daylight mean duration (h) | 9.2 | 10.4 | 11.9 | 13.5 | 14.9 | 15.6 | 15.3 | 14.1 | 12.5 | 11 | 9.5 | 8.8 |
| Daylight minimum duration (h) | 8.8 | 9.8 | 11.1 | 12.8 | 14.3 | 15.4 | 14.8 | 13.4 | 11.8 | 10.2 | 9 | 8.7 |
| Sunshine mean duration (h) | 3.7 | 5.1 | 6.2 | 7.5 | 11.4 | 12.5 | 13.3 | 11.7 | 9.2 | 6.4 | 5.1 | 3.6 |
| Precipitation (mm) | 129 | 129 | 147 | 208 | 34 | 34 | 2 | 20 | 82 | 116 | 167 | 298 |
| Sunny days | 8 | 10 | 3 | 6 | 19 | 22 | 29 | 23 | 16 | 16 | 13 | 7 |
| Rainy days | 23 | 18 | 28 | 24 | 12 | 8 | 2 | 8 | 14 | 15 | 17 | 24 |
The best time to visit Portland during the most sunny months:
Months with the longest average daylight duration in Portland:
The largest precipitation sum in Portland is at