Average annual temperature is 10.0 °C
Absolute maximum temperature: 32.3 °C
Absolute minimum temperature: -24.3 °C
Number of sunny days: 112 days
Number of rainy days: 224 days
Number of snow days: 29 days
Look at detailed online map of Town of Oswego
* Weather data for Town of Oswego 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) | 9.2 | 16.2 | 14.4 | 26.7 | 25.6 | 29.7 | 32.3 | 29.5 | 30.2 | 29.5 | 14.0 | 12.2 |
| Average daytime temperature (°C) | 2.7 | 4.3 | 4.2 | 14.9 | 17.1 | 22.3 | 26.2 | 23.5 | 21.9 | 16.4 | 7.9 | 6.2 |
| Average temperature (°C) | 0.0 | -1.1 | 0.7 | 9.1 | 12.3 | 18.0 | 22.0 | 19.9 | 18.0 | 12.9 | 4.5 | 3.4 |
| Average night temperature (°C) | -2.5 | -5.3 | -2.6 | 4.7 | 7.9 | 14.5 | 18.6 | 17.0 | 14.7 | 10.3 | 1.9 | 1.4 |
| Absolute minimum temperature (°C) | -10.5 | -24.3 | -12.0 | -4.8 | 2.5 | 10.7 | 16.4 | 13.3 | 9.3 | 1.9 | -3.7 | -6.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.4 | 10.5 | 11.9 | 13.4 | 14.7 | 15.4 | 15.0 | 13.9 | 12.5 | 11.0 | 9.7 | 9.0 |
| Daylight minimum duration (h) | 9.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 2.3 | 5.0 | 5.7 | 8.7 | 11.9 | 11.1 | 11.6 | 10.6 | 9.9 | 5.7 | 4.9 | 2.6 |
| Precipitation (mm) | 131 | 83 | 100 | 127 | 69 | 134 | 123 | 153 | 43 | 112 | 99 | 173 |
| Sunny days | 3 | 6 | 9 | 13 | 23 | 8 | 8 | 5 | 16 | 9 | 5 | 7 |
| Rainy days | 22 | 14 | 14 | 17 | 8 | 22 | 23 | 26 | 14 | 22 | 22 | 20 |
| Snow days | 6 | 8 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 4 |
The best time to visit Town of Oswego during the most sunny months:
Months with the longest average daylight duration in Town of Oswego:
The largest precipitation sum in Town of Oswego is at