Weather in Portland, Oregon, United States
Historical monthly conditions · 2021–2025
Monthly averages
Average daily air-temperature lows/highs and peak wind gusts. Rain is the average monthly total.
| Month | Avg low | Avg high | Rain | Cloud cover | Avg peak gust |
|---|---|---|---|---|---|
| January | 2°C | 8°C | 193.9 mm | 76% | 34.2 km/h |
| February | 2°C | 9°C | 153.8 mm | 75% | 35.7 km/h |
| March | 4°C | 12°C | 147.7 mm | 74% | 34.1 km/h |
| April | 5°C | 16°C | 116.3 mm | 64% | 33.6 km/h |
| May | 9°C | 20°C | 75.7 mm | 61% | 32.1 km/h |
| June | 12°C | 24°C | 54.7 mm | 46% | 32.4 km/h |
| July | 14°C | 29°C | 3.5 mm | 25% | 31.2 km/h |
| August | 15°C | 29°C | 13.6 mm | 38% | 29.4 km/h |
| September | 12°C | 25°C | 43.3 mm | 47% | 28.5 km/h |
| October | 8°C | 18°C | 112.8 mm | 58% | 31.2 km/h |
| November | 5°C | 11°C | 203.5 mm | 76% | 36.1 km/h |
| December | 4°C | 8°C | 263.5 mm | 82% | 37.5 km/h |
Weather match by month
Feels like 15°C–30°C · cloud ≤60% · rain ≤0.1 mm/h · gust ≤50 km/h
Feels-like temperature accounts for humidity and wind in shade. Percentages cover 08:00–20:00 local solar time.
| Month | Match rate | |
|---|---|---|
| January | 0.0% | |
| February | 0.5% | |
| March | 2.4% | |
| April | 11.1% | |
| May | 23.1% | |
| June | 43.5% | |
| July | 64.2% | |
| August | 50.2% | |
| September | 46.9% | |
| October | 21.0% | |
| November | 0.1% | |
| December | <0.1% |
About this location and data
- Urban-centre population
- 1,397,788
- Elevation
- 132 m
- Coordinates
- 45.50°N, 122.68°W
- Urban area
- 565 km²
Weather averages use 4 ERA5 grid cells, weighted by the area of the urban centre in each cell.
2021-2025 recent-weather sample (not a 30-year normal).
How the weather scores are calculatedNearby places with higher scores
Annual results for the default weather criteria: