Average annual temperature is 20.5 °C
Absolute maximum temperature: 38.9 °C
Absolute minimum temperature: -1.0 °C
Number of sunny days: 175 days
Number of rainy days: 190 days
Look at detailed online map of Ione
* Weather data for Ione 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) | 25.0 | 29.0 | 30.1 | 31.7 | 34.9 | 36.2 | 37.9 | 38.9 | 32.2 | 29.9 | 27.3 | 24.8 |
| Average daytime temperature (°C) | 19.4 | 22.9 | 24.3 | 27.4 | 29.0 | 31.4 | 34.3 | 35.5 | 29.9 | 25.6 | 20.4 | 17.0 |
| Average temperature (°C) | 13.4 | 16.5 | 17.8 | 20.7 | 22.9 | 25.6 | 28.4 | 29.3 | 24.6 | 19.9 | 15.1 | 12.0 |
| Average night temperature (°C) | 8.6 | 11.9 | 12.7 | 15.0 | 17.7 | 21.1 | 23.8 | 24.4 | 20.2 | 15.0 | 10.9 | 8.1 |
| Absolute minimum temperature (°C) | -1.0 | 1.1 | 0.7 | 9.1 | 11.4 | 17.8 | 21.3 | 22.4 | 16.1 | 8.5 | 1.0 | 0.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.4 | 11.1 | 12.0 | 12.9 | 13.7 | 14.1 | 13.9 | 13.3 | 12.4 | 11.4 | 10.6 | 10.2 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 7.4 | 8.3 | 9.0 | 9.4 | 10.6 | 10.5 | 11.3 | 11.1 | 9.7 | 9.2 | 6.9 | 6.6 |
| Precipitation (mm) | 144 | 107 | 83 | 74 | 86 | 169 | 100 | 186 | 53 | 22 | 71 | 207 |
| Sunny days | 19 | 17 | 15 | 13 | 12 | 5 | 3 | 9 | 13 | 26 | 21 | 22 |
| Rainy days | 12 | 11 | 16 | 17 | 19 | 25 | 28 | 22 | 17 | 5 | 9 | 9 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ione is at