Alliston Weather in December

Alliston in December averages 2°C (36°F) during the day and -7°C (19°F) at night. This is part of the winter season, and quite a bit of snow/rainfall is expected this month.

Rainfall in Alliston in December

You can expect snow/rain on around 14 days based on historical patterns, with 68 mm (2.7 in) average for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in Alliston in December

December in Alliston sees highs of 2°C (36°F) and lows of -7°C (19°F) overnight. During December, the winter season is in full swing. Expect a distinctly cold feel throughout the day, not just overnight. With overnight lows of -7°C (19°F), temperatures fall below freezing at night. An extra thick blanket can make a real difference if your accommodation runs cold. The month is chilly, so ensure you're equipped and dress warmly. Preparation becomes key in these temperatures.

Sunshine in Alliston in December

The city usually sees around 88 hours of sunlight, indicating fewer sunny days.

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

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Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Canada, check out our Alliston's climate page.

Alliston Temperature in December

Min Temperature -7°C (19°F)  

Max Temperature 2°C (36°F)  

Chance of Rain 47%  

Precipitation 68 mm (2.7 in)  

Rainy days 14 days  

Humidity 72% *  

Sunshine 88 hours *  

Percentage Sunshine 31% *  

* Data from: Mississauga, Canada (65 KM, 40 Miles).

What to Wear in Alliston in December

Cold weather calls for smart layering in December. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Rain gear is recommended, you can expect wet weather on multiple days. Sunglasses aren't essential this month, though you might want them for the occasional bright moment.

What To Do in Alliston in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

4/10

Cycling

2/10

Walking

2/10

Camping

1/10

Outdoor sports

2/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Canada, check out our Alliston's climate page.

More climate data for Alliston

Temperature Rainfall Sunshine Humidity

See the full Alliston climate overview or explore weather in Canada.