Average annual temperature is 15.5 °C
Absolute maximum temperature: 36.8 °C
Absolute minimum temperature: -1.3 °C
Number of sunny days: 187 days
Number of rainy days: 178 days
Look at detailed online map of Walla Walla
* Weather data for Walla Walla Australia is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 35.4 | 36.8 | 35.4 | 25.2 | 19.6 | 19.5 | 17.1 | 19.0 | 27.4 | 28.4 | 35.0 | 35.2 |
| Average daytime temperature (°C) | 29.5 | 28.8 | 26.3 | 19.9 | 14.7 | 12.8 | 13.1 | 14.8 | 19.3 | 20.2 | 25.9 | 28.1 |
| Average temperature (°C) | 23.3 | 22.2 | 20.4 | 14.5 | 9.6 | 9.1 | 8.1 | 9.6 | 13.1 | 14.5 | 19.8 | 22.2 |
| Average night temperature (°C) | 17.1 | 16.0 | 14.9 | 10.0 | 5.5 | 6.1 | 4.3 | 5.1 | 7.3 | 8.8 | 13.8 | 16.4 |
| Absolute minimum temperature (°C) | 12.2 | 8.8 | 9.6 | 4.7 | 0.8 | -1.3 | -0.2 | 0.0 | 1.9 | 4.6 | 9.1 | 11.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 |
| Daylight mean duration (h) | 14.3 | 13.4 | 12.3 | 11.2 | 10.2 | 9.8 | 10.0 | 10.8 | 11.9 | 13.0 | 14.0 | 14.5 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 |
| Sunshine mean duration (h) | 11.7 | 11.9 | 9.8 | 8.4 | 7.1 | 5.2 | 6.4 | 8.0 | 10.4 | 9.8 | 11.1 | 12.2 |
| Precipitation (mm) | 57 | 12 | 102 | 88 | 35 | 111 | 27 | 54 | 15 | 46 | 154 | 87 |
| Sunny days | 18 | 21 | 16 | 15 | 16 | 7 | 15 | 14 | 20 | 19 | 13 | 13 |
| Rainy days | 13 | 7 | 15 | 15 | 15 | 23 | 16 | 17 | 10 | 12 | 17 | 18 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Walla Walla during the most sunny months:
The largest precipitation sum in Walla Walla is at