The bar chart below shows the average monthly peak daytime temperatures at Portland
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 23 | 23.2 | 21.5 | 18.9 | 15.9 | 13.9 | 13.1 | 14 | 15.2 | 17.1 | 18.8 | 20.7 |
°F | 73.3 | 73.8 | 70.8 | 65.9 | 60.7 | 57 | 55.6 | 57.2 | 59.4 | 62.8 | 65.9 | 69.2 |
Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.
The graph below shows the average rainfall and number of rainy days per month.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
mm | 30 | 26 | 44 | 61 | 80 | 92 | 112 | 99 | 77 | 65 | 50 | 45 |
inches | 1.2 | 1 | 1.7 | 2.4 | 3.2 | 3.6 | 4.4 | 3.9 | 3 | 2.6 | 2 | 1.8 |
Rainy days | 8 | 8 | 8 | 8 | 10 | 10 | 11 | 10 | 10 | 12 | 9 | 8 |
Average annual rainfall in Portland: 884.966mm (348.4 inches)
The bar chart below shows the average daily sunshine hours in Portland
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Hrs sunshine | 9.5 | 9 | 7.2 | 5.6 | 4.7 | 4.3 | 4.6 | 5.4 | 5.9 | 7.1 | 7.7 | 8.4 |
The graph below shows the daily range of temperatures for each month.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Min °C | 12.8 | 13.4 | 12.5 | 10.8 | 9.1 | 7.4 | 6.5 | 7.1 | 7.8 | 8.9 | 10.2 | 11.5 |
Max °C | 23.2 | 23.5 | 21.8 | 19.1 | 16.1 | 14.1 | 13.3 | 14.2 | 15.4 | 17.3 | 19.1 | 20.9 |
Min °F | 55 | 56 | 54.4 | 51.4 | 48.4 | 45.2 | 43.7 | 44.7 | 46 | 48 | 50.3 | 52.7 |
Max °F | 64.4 | 65.1 | 62.8 | 58.8 | 54.7 | 51.3 | 49.8 | 51.1 | 52.9 | 55.6 | 58.3 | 61.2 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 17.1 | 17.6 | 17.4 | 16.4 | 15.6 | 15 | 14.5 | 14.1 | 13.9 | 14.1 | 14.9 | 15.9 |
°F | 62.8 | 63.8 | 63.2 | 61.5 | 60 | 58.9 | 58 | 57.3 | 57 | 57.4 | 58.7 | 60.7 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 22 | 22 | 21 | 21 | 22 | 22 | 24 | 25 | 25 | 24 | 24 | 23 |
mph | 14 | 14 | 13 | 13 | 14 | 14 | 15 | 15 | 16 | 15 | 15 | 14 |
A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.
The graph below shows the average relative humidity.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
---|---|---|---|---|---|---|---|---|---|---|---|
52% | 54% | 57% | 65% | 74% | 80% | 78% | 74% | 68% | 64% | 60% | 55% |
Hottest month: | February | 23.2°C 73.8°F |
---|---|---|
Driest month: | February | 26mm 1ins |
Sunniest month: | February | 9hrs |
Coldest month: | July | 13.1°C 55.6°F |
Wettest month: | July | 112mm 4.4ins |
Warmest sea: | February | 17.6°C 63.7°F |