Average annual temperature is 11.4 °C
Absolute maximum temperature: 39.7 °C
Absolute minimum temperature: -7.5 °C
Number of sunny days: 180 days
Number of rainy days: 184 days
Number of snow days: 1 day
Look at detailed online map of Grande Ronde
* Weather data for Grande Ronde United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 12.1 | 12.5 | 15.6 | 27.1 | 30.9 | 32.4 | 34.8 | 39.7 | 31.4 | 26.7 | 17.1 | 14.9 |
| Average daytime temperature (°C) | 8.3 | 8.1 | 10.0 | 13.4 | 21.8 | 24.7 | 28.0 | 30.1 | 23.1 | 17.5 | 11.1 | 10.0 |
| Average temperature (°C) | 4.8 | 3.7 | 4.9 | 8.2 | 14.6 | 16.2 | 19.2 | 21.0 | 16.2 | 12.3 | 7.4 | 6.9 |
| Average night temperature (°C) | 1.9 | 0.6 | 1.3 | 4.5 | 9.3 | 10.3 | 12.6 | 14.7 | 11.2 | 8.8 | 4.5 | 4.6 |
| Absolute minimum temperature (°C) | -5.7 | -7.5 | -4.6 | -1.7 | 3.2 | 6.5 | 9.6 | 8.9 | 7.1 | -0.7 | -1.7 | -1.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.2 | 10.4 | 11.9 | 13.5 | 14.9 | 15.6 | 15.2 | 14.0 | 12.5 | 11.0 | 9.6 | 8.8 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 3.3 | 5.2 | 6.1 | 6.7 | 11.5 | 13.4 | 13.6 | 12.1 | 9.2 | 6.3 | 4.7 | 2.8 |
| Precipitation (mm) | 183 | 120 | 167 | 190 | 17 | 2 | 1 | 13 | 78 | 102 | 156 | 351 |
| Sunny days | 9 | 8 | 4 | 7 | 20 | 25 | 29 | 26 | 17 | 14 | 13 | 8 |
| Rainy days | 22 | 19 | 27 | 23 | 11 | 5 | 2 | 5 | 13 | 17 | 17 | 23 |
| Snow days | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Grande Ronde during the most sunny months:
Months with the longest average daylight duration in Grande Ronde:
The largest precipitation sum in Grande Ronde is at