The bar chart below shows the average monthly peak daytime temperatures at Walla Walla
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 4.8 | 8.8 | 13.1 | 17.1 | 21.7 | 26.9 | 31.2 | 30.4 | 24.9 | 18.2 | 10 | 5.4 |
°F | 40.7 | 47.9 | 55.6 | 62.8 | 71.1 | 80.3 | 88.1 | 86.8 | 76.9 | 64.7 | 50 | 41.8 |
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 | 53 | 39 | 44 | 36 | 38 | 27 | 12 | 17 | 20 | 35 | 57 | 54 |
inches | 2.1 | 1.5 | 1.7 | 1.4 | 1.5 | 1.1 | 0.5 | 0.7 | 0.8 | 1.4 | 2.2 | 2.1 |
Rainy days | 11 | 10 | 10 | 8 | 7 | 6 | 3 | 4 | 5 | 6 | 11 | 12 |
Average annual rainfall in Walla Walla: 357.866mm (140.9 inches)
The bar chart below shows the average daily sunshine hours in Walla Walla
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Hrs sunshine | 2 | 3.5 | 6.2 | 8 | 10 | 11.6 | 13.4 | 12 | 9.7 | 7 | 2.6 | 1.6 |
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 | -2.2 | 0.4 | 2.7 | 5 | 8.6 | 12.8 | 15.5 | 15 | 10.3 | 5.3 | 1.4 | -1.8 |
Max °C | 5 | 9.1 | 13.4 | 17.4 | 22.1 | 27.2 | 31.6 | 30.8 | 25.3 | 18.5 | 10.2 | 5.6 |
Min °F | 28 | 32.6 | 36.8 | 41 | 47.4 | 55 | 59.8 | 59 | 50.5 | 41.5 | 34.5 | 28.8 |
Max °F | 34.5 | 40.5 | 46.4 | 52.2 | 59.5 | 68 | 74.3 | 73.2 | 64 | 53.4 | 42.4 | 35.4 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 8.3 | 8.2 | 8.3 | 8.6 | 9.4 | 10.9 | 12.6 | 13.6 | 13.1 | 11.6 | 10 | 8.8 |
°F | 46.9 | 46.7 | 46.9 | 47.4 | 48.9 | 51.6 | 54.7 | 56.4 | 55.6 | 52.9 | 50 | 47.8 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 13 | 14 | 15 | 16 | 15 | 15 | 14 | 14 | 13 | 12 | 13 | 13 |
mph | 8 | 9 | 9 | 10 | 9 | 9 | 9 | 9 | 8 | 8 | 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% | 65% | 58% | 53% | 48% | 38% | 40% | 49% | 61% | 76% | 80% |
Hottest month: | July | 31.2°C 88.2°F |
---|---|---|
Driest month: | July | 12mm 0.5ins |
Sunniest month: | July | 13.4hrs |
Coldest month: | January | 4.8°C 40.6°F |
Wettest month: | November | 57mm 2.2ins |
Warmest sea: | August | 13.6°C 56.5°F |