Thornhill Weather in January

Thornhill in January averages 7°C (45°F) during the day and 1°C (34°F) at night. This is part of the winter season, and quite a bit of rainfall is expected this month.

Rainfall in Thornhill in January

Looking at the last 30 years, the data shows about 21 days with rain, averaging 132 mm (5.2 in) for the month. Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.

Temperature in Thornhill in January

If you're visiting Thornhill in January, expect highs of 7°C (45°F) and overnight lows around 1°C (34°F). January is a notable month of the winter season. Temperatures remain on the cold side all day. A proper warm jacket is worth having, not just for evenings. At 1°C (34°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions. Typically, it's the chilliest month of the year. Ensure you're prepared by packing appropriate winter gear.

Sunshine in Thornhill in January

The city usually sees around 39 hours of sunlight, indicating fewer sunny days.

If you're looking for dry conditions and comfortable temperatures, January may not be the ideal month to visit Thornhill. Our weather planner can help you explore destinations with more pleasant weather conditions.