Average annual temperature is 9.3 °C
Absolute maximum temperature: 30.6 °C
Absolute minimum temperature: -20.4 °C
Number of sunny days: 130 days
Number of rainy days: 201 days
Number of snow days: 34 days
Look at detailed online map of Town of Portville
* Weather data for Town of Portville 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) | 12.7 | 16.1 | 12.5 | 27.1 | 29.3 | 30.3 | 30.6 | 29.5 | 29.7 | 26.8 | 15.7 | 12.5 |
| Average daytime temperature (°C) | 3.5 | 6.4 | 5.6 | 15.9 | 19.6 | 22.9 | 26.0 | 23.8 | 21.4 | 15.1 | 7.6 | 5.8 |
| Average temperature (°C) | 0.2 | -0.2 | 0.6 | 9.0 | 12.5 | 17.1 | 20.5 | 18.6 | 16.0 | 10.8 | 3.1 | 2.4 |
| Average night temperature (°C) | -2.4 | -4.9 | -3.3 | 3.3 | 6.1 | 12.0 | 15.7 | 14.6 | 11.8 | 7.3 | -0.4 | -0.1 |
| Absolute minimum temperature (°C) | -9.0 | -20.4 | -12.0 | -6.5 | -1.3 | 7.1 | 12.2 | 9.5 | 5.8 | -2.5 | -8.4 | -5.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 13.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.5 | 10.6 | 11.9 | 13.4 | 14.6 | 15.2 | 14.9 | 13.8 | 12.5 | 11.1 | 9.8 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 2.4 | 5.9 | 5.6 | 8.4 | 11.2 | 10.6 | 11.5 | 9.9 | 8.7 | 5.7 | 6.1 | 3.0 |
| Precipitation (mm) | 118 | 74 | 106 | 86 | 42 | 88 | 136 | 102 | 46 | 72 | 54 | 89 |
| Sunny days | 8 | 9 | 5 | 12 | 22 | 10 | 9 | 5 | 16 | 13 | 11 | 10 |
| Rainy days | 16 | 15 | 15 | 17 | 9 | 20 | 22 | 26 | 14 | 18 | 15 | 14 |
| Snow days | 7 | 4 | 11 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 7 |
The best time to visit Town of Portville during the most sunny months:
The largest precipitation sum in Town of Portville is at