Average annual temperature is 11.6 °C
Absolute maximum temperature: 36.1 °C
Absolute minimum temperature: -22.3 °C
Number of sunny days: 205 days
Number of rainy days: 142 days
Number of snow days: 18 days
Look at detailed online map of Port Byron
* Weather data for Port Byron 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) | 11.4 | 11.5 | 22.1 | 25.5 | 32.3 | 34.7 | 35.0 | 36.1 | 33.4 | 29.1 | 18.3 | 13.9 |
| Average daytime temperature (°C) | 2.5 | 5.1 | 8.2 | 17.1 | 24.5 | 29.3 | 29.0 | 28.5 | 25.6 | 17.5 | 9.9 | 6.7 |
| Average temperature (°C) | -1.7 | -0.6 | 2.8 | 10.3 | 17.8 | 22.9 | 23.5 | 23.2 | 20.1 | 12.9 | 4.9 | 2.7 |
| Average night temperature (°C) | -4.6 | -4.9 | -1.0 | 4.9 | 11.7 | 16.9 | 18.5 | 18.6 | 15.6 | 9.2 | 0.9 | 0.0 |
| Absolute minimum temperature (°C) | -22.3 | -19.3 | -12.1 | -1.6 | 2.8 | 9.0 | 13.5 | 11.3 | 10.5 | -2.6 | -11.6 | -8.0 |
| 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 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.6 | 10.6 | 11.9 | 13.3 | 14.5 | 15.1 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 3.9 | 7.2 | 6.6 | 9.2 | 11.4 | 12.4 | 12.5 | 11.0 | 9.8 | 7.4 | 7.2 | 4.2 |
| Precipitation (mm) | 77 | 90 | 93 | 44 | 48 | 61 | 95 | 46 | 83 | 115 | 21 | 66 |
| Sunny days | 15 | 14 | 16 | 18 | 23 | 20 | 16 | 14 | 13 | 16 | 24 | 16 |
| Rainy days | 7 | 10 | 14 | 12 | 8 | 10 | 15 | 17 | 17 | 14 | 4 | 14 |
| Snow days | 9 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 1 |
The best time to visit Port Byron during the most sunny months:
The largest precipitation sum in Port Byron is at