Average annual temperature is 11.3 °C
Absolute maximum temperature: 37.7 °C
Absolute minimum temperature: -20.6 °C
Number of sunny days: 235 days
Number of rainy days: 112 days
Number of snow days: 18 days
Look at detailed online map of Optimo
* Weather data for Optimo 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) | 17.0 | 16.6 | 20.4 | 25.9 | 27.2 | 33.9 | 37.7 | 35.0 | 33.1 | 26.5 | 23.5 | 17.0 |
| Average daytime temperature (°C) | 7.5 | 9.7 | 12.5 | 19.1 | 23.2 | 26.9 | 32.5 | 30.1 | 26.4 | 20.0 | 14.3 | 7.9 |
| Average temperature (°C) | 0.8 | 1.2 | 5.0 | 10.0 | 15.2 | 19.0 | 24.3 | 22.6 | 18.7 | 11.7 | 6.0 | 0.8 |
| Average night temperature (°C) | -4.3 | -4.9 | -1.2 | 1.7 | 7.9 | 11.1 | 16.2 | 15.6 | 11.4 | 4.7 | -0.3 | -4.7 |
| Absolute minimum temperature (°C) | -11.1 | -20.6 | -7.6 | -6.1 | 3.7 | 6.7 | 12.8 | 11.1 | 7.8 | -6.6 | -7.4 | -14.4 |
| 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 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 8.1 | 9.1 | 10.2 | 11.6 | 11.1 | 12.4 | 13.0 | 11.7 | 10.8 | 10.0 | 8.4 | 7.9 |
| Precipitation (mm) | 12 | 22 | 13 | 14 | 66 | 64 | 18 | 41 | 20 | 14 | 9 | 26 |
| Sunny days | 23 | 17 | 21 | 27 | 10 | 13 | 13 | 17 | 18 | 26 | 25 | 25 |
| Rainy days | 4 | 4 | 6 | 3 | 21 | 17 | 18 | 14 | 12 | 5 | 4 | 4 |
| Snow days | 4 | 7 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
The largest precipitation sum in Optimo is at