Average annual temperature is 4.3 °C
Absolute maximum temperature: 23.4 °C
Absolute minimum temperature: -18.3 °C
Number of sunny days: 106 days
Number of rainy days: 201 days
Number of snow days: 58 days
Look at detailed online map of Port O'Brien
* Weather data for Port O'Brien 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) | 5.4 | 5.0 | 6.4 | 7.6 | 10.3 | 20.8 | 22.8 | 23.4 | 17.2 | 12.5 | 8.9 | 3.8 |
| Average daytime temperature (°C) | 2.2 | 1.1 | 1.4 | 2.5 | 7.2 | 13.6 | 17.9 | 17.8 | 12.4 | 8.7 | 4.1 | -1.3 |
| Average temperature (°C) | 0.5 | -1.7 | -1.2 | -0.1 | 5.0 | 10.4 | 13.9 | 14.1 | 9.0 | 5.0 | 1.5 | -5.5 |
| Average night temperature (°C) | -1.6 | -4.3 | -3.4 | -2.8 | 3.1 | 8.0 | 10.7 | 11.3 | 5.8 | 2.2 | -0.7 | -9.6 |
| Absolute minimum temperature (°C) | -9.9 | -12.3 | -9.3 | -9.7 | -0.9 | 3.6 | 6.6 | 7.3 | 0.0 | -2.9 | -8.4 | -18.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 8.0 | 10.0 | 13.0 | 15.0 | 17.0 | 18.0 | 17.0 | 16.0 | 13.0 | 11.0 | 9.0 | 7.0 |
| Daylight mean duration (h) | 7.4 | 9.4 | 11.8 | 14.4 | 16.7 | 18.0 | 17.3 | 15.3 | 12.8 | 10.3 | 8.0 | 6.7 |
| Daylight minimum duration (h) | 6.0 | 8.0 | 10.0 | 13.0 | 15.0 | 17.0 | 16.0 | 14.0 | 11.0 | 9.0 | 7.0 | 6.0 |
| Sunshine mean duration (h) | 1.3 | 4.8 | 6.8 | 8.7 | 5.9 | 5.7 | 7.7 | 6.8 | 8.3 | 5.7 | 3.3 | 1.6 |
| Precipitation (mm) | 161 | 72 | 77 | 28 | 141 | 109 | 132 | 126 | 71 | 53 | 95 | 111 |
| Sunny days | 5 | 5 | 17 | 13 | 3 | 4 | 8 | 6 | 10 | 19 | 11 | 5 |
| Rainy days | 19 | 9 | 2 | 8 | 28 | 26 | 23 | 25 | 20 | 12 | 18 | 11 |
| Snow days | 7 | 14 | 12 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 15 |
The best time to visit Port O'Brien during the most sunny months:
Months with the longest average daylight duration in Port O'Brien:
The largest precipitation sum in Port O'Brien is at