The bar chart below shows the average monthly peak daytime temperatures at The Dalles
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 4.1 | 8 | 12.2 | 15.9 | 20.5 | 24.9 | 28.6 | 28.5 | 23.8 | 17.2 | 9 | 4.4 |
°F | 39.4 | 46.3 | 54 | 60.5 | 68.8 | 76.8 | 83.5 | 83.3 | 74.9 | 63 | 48.2 | 39.9 |
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 | 102 | 65 | 56 | 31 | 23 | 18 | 6 | 12 | 19 | 42 | 83 | 101 |
inches | 4 | 2.5 | 2.2 | 1.2 | 0.9 | 0.7 | 0.2 | 0.5 | 0.8 | 1.6 | 3.3 | 4 |
Rainy days | 13 | 11 | 12 | 9 | 8 | 6 | 3 | 4 | 5 | 7 | 13 | 14 |
Average annual rainfall in The Dalles: 480.933mm (189.3 inches)
The bar chart below shows the average daily sunshine hours in The Dalles
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Hrs sunshine | 2.8 | 4.4 | 6.6 | 8 | 9.8 | 11 | 12.3 | 11.1 | 9.2 | 6.2 | 2.9 | 2.2 |
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 | -3.5 | -1.6 | -0.3 | 1.6 | 4.6 | 8.1 | 10.2 | 10.1 | 6.6 | 2.2 | -0.2 | -3 |
Max °C | 4.3 | 8.2 | 12.5 | 16.2 | 20.9 | 25.3 | 29.1 | 29 | 24.3 | 17.6 | 9.2 | 4.6 |
Min °F | 25.7 | 29.1 | 31.5 | 34.9 | 40.2 | 46.6 | 50.3 | 50.1 | 43.8 | 36 | 31.6 | 26.7 |
Max °F | 32.7 | 37.9 | 43 | 48 | 54.9 | 62.1 | 67.3 | 67.1 | 59.7 | 49.8 | 40.1 | 33.4 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 8.9 | 8.8 | 8.9 | 9.1 | 9.9 | 11.2 | 12.6 | 13.3 | 13 | 11.8 | 10.4 | 9.3 |
°F | 48 | 47.8 | 48 | 48.4 | 49.8 | 52.1 | 54.6 | 56 | 55.5 | 53.3 | 50.8 | 48.8 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 12 | 13 | 14 | 14 | 14 | 13 | 13 | 12 | 12 | 11 | 12 | 12 |
mph | 8 | 8 | 9 | 9 | 9 | 8 | 8 | 8 | 7 | 7 | 8 | 8 |
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 |
---|---|---|---|---|---|---|---|---|---|---|---|
79% | 75% | 67% | 61% | 57% | 54% | 49% | 52% | 59% | 69% | 78% | 81% |
Hottest month: | July | 28.6°C 83.5°F |
---|---|---|
Driest month: | July | 6mm 0.2ins |
Sunniest month: | July | 12.3hrs |
Coldest month: | January | 4.1°C 39.4°F |
Wettest month: | January | 102mm 4ins |
Warmest sea: | August | 13.3°C 55.9°F |