Average annual temperature is 7.7 °C
Absolute maximum temperature: 35.2 °C
Absolute minimum temperature: -21.5 °C
Number of sunny days: 176 days
Number of rainy days: 126 days
Number of snow days: 63 days
Look at detailed online map of Idaho City
* Weather data for Idaho City 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) | 6.7 | 5.6 | 7.8 | 21.7 | 27.2 | 28.4 | 34.7 | 35.2 | 27.9 | 24.5 | 14.4 | 9.6 |
| Average daytime temperature (°C) | 1.4 | 2.2 | 3.2 | 9.1 | 19.1 | 21.6 | 30.6 | 28.7 | 23.2 | 16.3 | 8.6 | 4.9 |
| Average temperature (°C) | -2.5 | -3.2 | -1.2 | 3.3 | 11.3 | 14.9 | 22.3 | 20.6 | 15.3 | 9.2 | 2.5 | -1.5 |
| Average night temperature (°C) | -5.9 | -7.7 | -4.6 | -1.2 | 4.7 | 8.4 | 13.0 | 13.4 | 8.5 | 3.8 | -2.0 | -7.2 |
| Absolute minimum temperature (°C) | -17.6 | -13.2 | -9.6 | -6.8 | -1.4 | -0.3 | 8.2 | 6.9 | 3.0 | -6.2 | -11.0 | -21.5 |
| 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) | 9.3 | 10.5 | 11.9 | 13.4 | 14.7 | 15.4 | 15.1 | 14.0 | 12.5 | 11.0 | 9.7 | 9.0 |
| 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) | 5.6 | 7.1 | 7.1 | 9.8 | 11.5 | 11.9 | 13.6 | 11.6 | 10.3 | 8.4 | 6.8 | 5.2 |
| Precipitation (mm) | 62 | 42 | 149 | 55 | 99 | 102 | 1 | 55 | 25 | 54 | 43 | 76 |
| Sunny days | 13 | 13 | 7 | 11 | 9 | 5 | 28 | 17 | 21 | 19 | 17 | 16 |
| Rainy days | 6 | 2 | 9 | 7 | 22 | 25 | 3 | 14 | 9 | 11 | 10 | 8 |
| Snow days | 12 | 13 | 15 | 12 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 7 |
The best time to visit Idaho City during the most sunny months:
Months with the longest average daylight duration in Idaho City:
The largest precipitation sum in Idaho City is at