Average annual temperature is 13.2 °C
Absolute maximum temperature: 32.6 °C
Absolute minimum temperature: -2.9 °C
Number of sunny days: 155 days
Number of rainy days: 197 days
Number of snow days: 13 days
Look at detailed online map of Grona
* Weather data for Grona Italy is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 16.8 | 17.5 | 18.1 | 19.6 | 24.8 | 29.0 | 30.0 | 32.6 | 27.2 | 29.9 | 17.1 | 18.7 |
| Average daytime temperature (°C) | 8.5 | 11.2 | 13.3 | 15.4 | 19.2 | 24.1 | 25.9 | 26.1 | 23.1 | 19.5 | 12.0 | 10.2 |
| Average temperature (°C) | 4.9 | 6.0 | 8.5 | 10.7 | 15.1 | 20.0 | 21.9 | 22.0 | 19.5 | 15.8 | 7.3 | 5.5 |
| Average night temperature (°C) | 1.5 | 1.8 | 3.7 | 5.6 | 10.9 | 15.2 | 17.6 | 17.7 | 15.4 | 12.1 | 3.3 | 1.6 |
| Absolute minimum temperature (°C) | -2.8 | -2.4 | -0.6 | 0.9 | 7.0 | 11.5 | 12.3 | 11.2 | 9.1 | 7.1 | -0.9 | -2.9 |
| 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 | 8.0 |
| Daylight mean duration (h) | 9.1 | 10.4 | 11.9 | 13.6 | 15.0 | 15.7 | 15.3 | 14.1 | 12.5 | 10.9 | 9.5 | 8.7 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 5.6 | 7.6 | 8.1 | 9.4 | 9.3 | 12.1 | 12.6 | 10.9 | 9.1 | 6.9 | 6.3 | 5.5 |
| Precipitation (mm) | 56 | 13 | 97 | 129 | 180 | 171 | 289 | 291 | 220 | 305 | 89 | 79 |
| Sunny days | 15 | 20 | 15 | 14 | 2 | 7 | 4 | 14 | 15 | 13 | 16 | 20 |
| Rainy days | 10 | 4 | 16 | 16 | 29 | 23 | 27 | 17 | 15 | 18 | 13 | 9 |
| Snow days | 6 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
The best time to visit Grona during the most sunny months:
Months with the longest average daylight duration in Grona:
The largest precipitation sum in Grona is at