Climate almanac
Stittsville
Ontario, Canada · 45.25°, -75.92°
What is the climate like in Stittsville?
The best time to visit Stittsville is typically September, the year's most comfortable month (7.0/10). Stittsville is warmest in July, when daily highs average 81°F (27°C), and coolest in January, when lows fall to about 11°F (-12°C). The wettest month is typically April and the driest is September; the year sees roughly 43 in (1080 mm) of precipitation.
- Best time to visitSeptember — the year's comfort peak (7.0/10)
- Warmest monthJuly — average high 81°F (27°C)
- Coolest monthJanuary — average low 11°F (-12°C)
- Wettest monthApril (4.3 in (110 mm))
- Driest monthSeptember (2.3 in (59 mm))
- Annual precipitation43 in (1080 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromOttawa Cda, 22 km away (1889-2024)