Average annual temperature is 11.8 °C
Absolute maximum temperature: 34.1 °C
Absolute minimum temperature: -18.1 °C
Number of sunny days: 166 days
Number of rainy days: 187 days
Number of snow days: 12 days
Look at detailed online map of Port Morris
* Weather data for Port Morris 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) | 17.4 | 17.7 | 15.2 | 31.9 | 28.6 | 34.1 | 31.9 | 30.2 | 32.6 | 26.8 | 18.0 | 14.7 |
| Average daytime temperature (°C) | 7.0 | 7.4 | 8.8 | 18.0 | 21.3 | 25.0 | 28.6 | 26.1 | 22.8 | 18.1 | 9.7 | 7.7 |
| Average temperature (°C) | 3.5 | 2.2 | 3.7 | 11.8 | 14.8 | 19.1 | 23.3 | 21.3 | 18.3 | 13.5 | 5.1 | 3.9 |
| Average night temperature (°C) | 0.6 | -2.0 | -0.5 | 6.8 | 8.9 | 14.4 | 19.3 | 17.5 | 14.8 | 9.8 | 1.4 | 1.0 |
| Absolute minimum temperature (°C) | -4.8 | -18.1 | -5.8 | -0.9 | 3.3 | 9.3 | 15.3 | 14.0 | 8.9 | 3.6 | -5.4 | -5.6 |
| 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 | 9.3 |
| 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) | 4.6 | 6.6 | 7.3 | 8.8 | 11.7 | 10.4 | 11.7 | 9.7 | 8.0 | 7.7 | 7.5 | 4.6 |
| Precipitation (mm) | 129 | 47 | 99 | 121 | 48 | 84 | 134 | 115 | 184 | 61 | 79 | 223 |
| Sunny days | 14 | 17 | 13 | 14 | 21 | 11 | 8 | 9 | 14 | 13 | 18 | 14 |
| Rainy days | 15 | 8 | 15 | 16 | 10 | 19 | 23 | 22 | 16 | 18 | 11 | 14 |
| Snow days | 2 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
The best time to visit Port Morris during the most sunny months:
The largest precipitation sum in Port Morris is at