Climate averages 1991–2020
Portland weather
in June.
A mild, moderately wet month: the 4th warmest and the 4th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
June is a mild month in Portland: daytime highs average 21.8°C and nights cool to about 11.3°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 43 mm of rain on roughly 8 days, which makes June a moderately wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 15 h 37 min on an average June day.
The nearest other city in this atlas is Beaverton (11 km away). In June its highs average 21.4°C, about as warm as Portland, with 43 mm of rain.
Among the 498 cities listed in the United States, Portland ranks joint 468th of 498 for the warmest June highs and joint 157th of 498 for the driest June (rainfall, lowest first). The mean June high of those 498 cities is 27.9°C; Portland is 6.1°C cooler than that mean.
From June to July, average highs rise by 5.2°C to 27.1°C, and monthly rainfall falls from 43 mm to 12 mm.
The annual picture
June in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Portland climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 8.4°C1.7°C | 1.7°C | 167 | 17.3 | 9.19 h |
| February | 10.1°C2.0°C | 2.0°C | 130 | 15.0 | 10.310 h |
| March | 12.4°C3.4°C | 3.4°C | 145 | 17.5 | 11.912 h |
| April | 14.9°C5.4°C | 5.4°C | 115 | 16.1 | 13.513 h |
| May | 18.8°C8.8°C | 8.8°C | 70 | 11.1 | 14.915 h |
| June, selected | 21.8°C11.3°C | 11.3°C | 43 | 7.6 | 15.616 h |
| July | 27.1°C14.1°C | 14.1°C | 12 | 2.3 | 15.315 h |
| August | 27.6°C14.6°C | 14.6°C | 14 | 2.6 | 14.114 h |
| September | 24.1°C12.3°C | 12.3°C | 42 | 6.2 | 12.613 h |
| October | 17.0°C8.1°C | 8.1°C | 106 | 11.8 | 11.011 h |
| November | 11.1°C4.2°C | 4.2°C | 174 | 17.3 | 9.610 h |
| December | 7.7°C1.7°C | 1.7°C | 193 | 18.0 | 8.89 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
June in nearby cities
- Beaverton in JuneUnited States · 11 kmHigh 21.4°C · Low 10.9°C · 43 mm rain
- Vancouver, United States in JuneUnited States · 13 kmHigh 21.3°C · Low 10.9°C · 60 mm rain
- Gresham in JuneUnited States · 19 kmHigh 20.5°C · Low 10.6°C · 58 mm rain
- Hillsboro in JuneUnited States · 24 kmHigh 21.5°C · Low 11.0°C · 40 mm rain
- Salem, United States in JuneUnited States · 70 kmHigh 22.0°C · Low 10.8°C · 30 mm rain
- Eugene in JuneUnited States · 167 kmHigh 21.3°C · Low 10.3°C · 43 mm rain
- Tacoma in JuneUnited States · 193 kmHigh 19.8°C · Low 11.1°C · 40 mm rain
- Bend in JuneUnited States · 195 kmHigh 21.4°C · Low 7.6°C · 26 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Portland) is explained once on the Portland year overview and on the Sources, method and limits page.
Beaverton lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.