Average annual temperature is 13.9 °C
Absolute maximum temperature: 34.0 °C
Absolute minimum temperature: -8.5 °C
Number of sunny days: 161 days
Number of rainy days: 199 days
Number of snow days: 5 days
Look at detailed online map of Mellville
* Weather data for Mellville 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) | 20.7 | 24.2 | 24.3 | 28.6 | 28.1 | 33.2 | 34.0 | 32.9 | 31.9 | 28.8 | 25.1 | 19.2 |
| Average daytime temperature (°C) | 11.4 | 13.8 | 14.0 | 20.5 | 22.6 | 26.2 | 30.6 | 28.1 | 25.5 | 20.5 | 14.7 | 11.3 |
| Average temperature (°C) | 5.7 | 7.6 | 7.8 | 13.5 | 16.6 | 20.3 | 24.3 | 22.6 | 19.7 | 14.8 | 8.1 | 5.9 |
| Average night temperature (°C) | 2.2 | 3.0 | 3.0 | 7.9 | 11.5 | 15.0 | 19.1 | 18.3 | 15.0 | 10.4 | 3.5 | 2.3 |
| Absolute minimum temperature (°C) | -7.3 | -8.5 | -8.3 | 0.8 | 3.8 | 9.2 | 14.7 | 11.5 | 10.8 | 1.7 | -6.7 | -5.3 |
| 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 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.5 | 13.6 | 12.4 | 11.2 | 10.2 | 9.6 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 4.8 | 6.9 | 7.7 | 9.6 | 10.0 | 11.4 | 11.9 | 10.0 | 10.0 | 7.7 | 7.3 | 5.3 |
| Precipitation (mm) | 89 | 98 | 67 | 72 | 91 | 56 | 99 | 115 | 57 | 44 | 58 | 85 |
| Sunny days | 10 | 13 | 15 | 19 | 16 | 9 | 7 | 7 | 16 | 16 | 20 | 13 |
| Rainy days | 19 | 15 | 15 | 11 | 15 | 21 | 24 | 24 | 14 | 15 | 9 | 17 |
| Snow days | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
The best time to visit Mellville during the most sunny months:
The largest precipitation sum in Mellville is at