Average annual temperature is 8.2 °C
Absolute maximum temperature: 32.8 °C
Absolute minimum temperature: -19.1 °C
Number of sunny days: 148 days
Number of rainy days: 167 days
Number of snow days: 50 days
Look at detailed online map of Stittsville
* Weather data for Stittsville 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) | 5.0 | 8.9 | 9.5 | 26.4 | 30.9 | 32.8 | 32.6 | 30.4 | 31.4 | 27.9 | 15.1 | 10.8 |
| Average daytime temperature (°C) | -0.2 | 0.7 | 3.6 | 13.3 | 20.5 | 25.2 | 26.2 | 24.4 | 22.0 | 14.0 | 6.0 | 4.3 |
| Average temperature (°C) | -2.9 | -4.0 | -1.6 | 7.0 | 13.3 | 18.4 | 19.9 | 18.3 | 16.3 | 9.9 | 1.8 | 1.1 |
| Average night temperature (°C) | -5.3 | -7.8 | -5.8 | 1.8 | 7.0 | 12.1 | 14.5 | 13.4 | 12.1 | 6.9 | -1.3 | -1.2 |
| Absolute minimum temperature (°C) | -19.1 | -18.9 | -14.0 | -6.3 | -1.9 | 6.0 | 10.8 | 7.1 | 3.3 | -4.1 | -8.6 | -5.4 |
| 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) | 9.3 | 10.4 | 11.9 | 13.5 | 14.8 | 15.5 | 15.2 | 14.0 | 12.5 | 11.0 | 9.6 | 8.9 |
| 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) | 2.3 | 5.1 | 7.1 | 8.1 | 10.7 | 12.2 | 12.7 | 10.3 | 9.0 | 5.2 | 4.8 | 3.1 |
| Precipitation (mm) | 49 | 74 | 68 | 82 | 45 | 52 | 140 | 132 | 39 | 78 | 53 | 58 |
| Sunny days | 9 | 10 | 11 | 10 | 21 | 18 | 6 | 13 | 15 | 8 | 15 | 12 |
| Rainy days | 10 | 5 | 8 | 19 | 10 | 12 | 25 | 18 | 15 | 22 | 10 | 13 |
| Snow days | 12 | 13 | 12 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 5 | 6 |
The best time to visit Stittsville during the most sunny months:
Months with the longest average daylight duration in Stittsville:
The largest precipitation sum in Stittsville is at