Average annual temperature is 8.9 °C
Absolute maximum temperature: 36.2 °C
Absolute minimum temperature: -30.5 °C
Number of sunny days: 227 days
Number of rainy days: 100 days
Number of snow days: 38 days
Look at detailed online map of Opal
* Weather data for Opal 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) | 10.6 | 14.3 | 14.8 | 28.0 | 29.0 | 32.0 | 35.1 | 36.2 | 34.9 | 28.0 | 18.0 | 13.8 |
| Average daytime temperature (°C) | 1.0 | 3.3 | 3.0 | 13.1 | 23.3 | 26.5 | 29.0 | 28.8 | 24.8 | 14.3 | 9.3 | 4.8 |
| Average temperature (°C) | -3.8 | -3.7 | -3.7 | 5.4 | 16.7 | 20.6 | 22.3 | 22.3 | 18.2 | 8.4 | 3.0 | -0.2 |
| Average night temperature (°C) | -7.4 | -8.7 | -7.9 | -0.6 | 10.5 | 14.8 | 15.9 | 16.7 | 12.7 | 4.1 | -1.3 | -3.8 |
| Absolute minimum temperature (°C) | -17.7 | -30.5 | -15.8 | -13.0 | 0.8 | 8.9 | 8.7 | 12.5 | 8.3 | -10.7 | -10.8 | -9.5 |
| 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 | 14.8 | 15.5 | 15.2 | 14.0 | 12.5 | 11.0 | 9.6 | 8.9 |
| 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) | 4.8 | 7.8 | 8.0 | 9.9 | 11.5 | 12.0 | 13.4 | 11.2 | 10.2 | 7.6 | 7.8 | 6.0 |
| Precipitation (mm) | 11 | 23 | 34 | 25 | 92 | 111 | 47 | 104 | 69 | 35 | 2 | 27 |
| Sunny days | 18 | 19 | 17 | 19 | 14 | 14 | 17 | 21 | 20 | 19 | 24 | 25 |
| Rainy days | 4 | 4 | 1 | 7 | 17 | 16 | 14 | 10 | 10 | 10 | 4 | 3 |
| Snow days | 9 | 5 | 13 | 4 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 3 |
The best time to visit Opal during the most sunny months:
Months with the longest average daylight duration in Opal:
The largest precipitation sum in Opal is at