Chantilly Weather in December

Chantilly in December averages 9°C (48°F) during the day and -1°C (30°F) at night. This is part of the winter season, and quite a bit of snow/rainfall is expected this month.

Rainfall in Chantilly in December

Typically, you can expect about 11 days of snow/rain this month, with 98 mm (3.9 in) on average. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Chantilly in December

Daytime temperatures in Chantilly reach 9°C (48°F) in December, dropping to -1°C (30°F) at night. Experience the winter season in December. The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. At -1°C (30°F) overnight, frost and ice are likely outside. Indoors, consider packing an extra blanket if you're unsure about the heating.

Sunshine in Chantilly in December

You can expect a moderate amount of sunlight, with approximately 130 hours. This means a pleasant mix of sun and overcast.

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

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• January
• February
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For a detailed overview over the year and the best time to visit the United States of America, check out our Chantilly's climate page.

Chantilly Temperature in December

Min Temperature -1°C (30°F)  

Max Temperature 9°C (48°F)  

Chance of Rain 38%  

Precipitation 98 mm (3.9 in)  

Rainy days 11 days  

Humidity 64% *  

Sunshine 130 hours *  

Percentage Sunshine 45% *  

* Data from: Washington DC, the United States of America (34 KM, 21 Miles).

What to Wear in Chantilly in December

We recommend to layer up for chilly conditions in Chantilly in December. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Chantilly in December

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

Swimming

5/10

Cycling

4/10

Walking

4/10

Camping

1/10

Outdoor sports

4/10

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 the United States of America, check out our Chantilly's climate page.

More climate data for Chantilly

Temperature Rainfall Sunshine Humidity

See the full Chantilly climate overview or explore weather in the United States of America.