Average annual temperature is 8.0 °C
Absolute maximum temperature: 32.8 °C
Absolute minimum temperature: -34.7 °C
Number of sunny days: 125 days
Number of rainy days: 186 days
Number of snow days: 54 days
Look at detailed online map of Old Stittsville
* Weather data for Old Stittsville 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) | 4.1 | 10.5 | 7.5 | 27.8 | 31.2 | 32.6 | 32.0 | 27.1 | 32.8 | 28.9 | 14.9 | 9.9 |
| Average daytime temperature (°C) | -1.3 | -0.1 | 3.1 | 14.1 | 19.3 | 24.1 | 26.4 | 23.5 | 22.9 | 15.7 | 5.1 | 2.1 |
| Average temperature (°C) | -5.1 | -6.6 | -1.5 | 7.2 | 12.7 | 18.6 | 21.5 | 18.8 | 17.4 | 11.7 | 1.1 | -1.2 |
| Average night temperature (°C) | -8.5 | -11.8 | -5.7 | 1.5 | 6.4 | 13.4 | 17.2 | 14.8 | 12.9 | 8.4 | -2.1 | -3.8 |
| Absolute minimum temperature (°C) | -20.1 | -34.7 | -14.0 | -9.8 | 0.9 | 8.4 | 12.4 | 10.3 | 7.3 | -3.1 | -8.8 | -16.5 |
| 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) | 9.2 | 10.4 | 11.9 | 13.5 | 14.9 | 15.6 | 15.3 | 14.1 | 12.5 | 11.0 | 9.5 | 8.8 |
| 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) | 3.0 | 5.2 | 6.1 | 8.1 | 10.9 | 10.6 | 11.6 | 9.8 | 9.5 | 5.0 | 4.6 | 2.5 |
| Precipitation (mm) | 119 | 76 | 75 | 96 | 90 | 93 | 153 | 128 | 23 | 89 | 40 | 103 |
| Sunny days | 6 | 4 | 11 | 12 | 21 | 10 | 3 | 7 | 21 | 10 | 11 | 9 |
| Rainy days | 9 | 10 | 9 | 18 | 10 | 20 | 28 | 24 | 9 | 21 | 12 | 16 |
| Snow days | 16 | 14 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 6 |
The best time to visit Old Stittsville during the most sunny months:
Months with the longest average daylight duration in Old Stittsville:
The largest precipitation sum in Old Stittsville is at