Average annual temperature is 7.8 °C
Absolute maximum temperature: 29.6 °C
Absolute minimum temperature: -26.1 °C
Number of sunny days: 133 days
Number of rainy days: 187 days
Number of snow days: 45 days
Look at detailed online map of Wellington County
* Weather data for Wellington County Canada is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 4.4 | 10.4 | 7.9 | 25.7 | 29.1 | 29.1 | 29.1 | 25.6 | 29.6 | 26.4 | 12.4 | 10.7 |
| Average daytime temperature (°C) | -0.1 | 1.1 | 2.8 | 12.9 | 18.6 | 22.6 | 24.8 | 22.3 | 20.9 | 13.8 | 5.1 | 3.3 |
| Average temperature (°C) | -2.7 | -4.3 | -1.8 | 6.8 | 12.1 | 17.5 | 19.7 | 17.6 | 16.0 | 10.1 | 1.6 | 0.7 |
| Average night temperature (°C) | -5.0 | -8.8 | -5.6 | 1.8 | 6.3 | 12.9 | 15.4 | 13.7 | 12.3 | 7.3 | -1.4 | -1.4 |
| Absolute minimum temperature (°C) | -14.4 | -26.1 | -13.5 | -7.3 | -0.7 | 8.5 | 11.2 | 8.3 | 6.1 | -1.7 | -9.1 | -7.0 |
| 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) | 9.3 | 10.5 | 11.9 | 13.4 | 14.7 | 15.4 | 15.1 | 14.0 | 12.5 | 11.0 | 9.7 | 9.0 |
| Daylight minimum duration (h) | 8.0 | 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) | 2.1 | 5.7 | 6.1 | 8.3 | 11.3 | 11.4 | 11.5 | 9.9 | 9.6 | 5.3 | 4.8 | 2.3 |
| Precipitation (mm) | 74 | 88 | 109 | 120 | 44 | 100 | 110 | 76 | 34 | 76 | 52 | 87 |
| Sunny days | 8 | 11 | 10 | 11 | 20 | 14 | 4 | 10 | 15 | 9 | 12 | 9 |
| Rainy days | 10 | 9 | 9 | 17 | 11 | 16 | 27 | 21 | 15 | 21 | 15 | 16 |
| Snow days | 13 | 8 | 12 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 6 |
The best time to visit Wellington County during the most sunny months:
Months with the longest average daylight duration in Wellington County:
The largest precipitation sum in Wellington County is at