Westmont Weather in December

In Westmont, December brings low daytime temperatures around 3°C (37°F), with nights cooling to -5°C (23°F). Expect quite a bit of snow/rainfall this month.

Rainfall in Westmont in December

Snow/rain is expected on roughly 16 days, totalling around 81 mm (3.2 in) for the month. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in Westmont in December

December in Westmont sees highs of 3°C (37°F) and lows of -5°C (23°F) overnight. Winter occurs in December. Staying warm is the main priority this month, especially during mornings and evenings. With overnight lows of -5°C (23°F), temperatures fall below freezing at night. An extra thick blanket can make a real difference if your accommodation runs cold. This month is known for its biting cold, so make sure to dress warmly. Proper preparation can help you stay cozy.

Sunshine in Westmont in December

The area experiences a moderate amount of sunshine, with approximately 107 hours of sunlight expected. This means a decent mix of sun and overcast.

Wind Speed in Westmont in December

December has wind speeds averaging 5 m/s (10 knots). You can expect gentle to moderate winds that move small trees and make flags wave steadily on typical days. Conditions typically range from light breezes to moderate winds.

December in Westmont has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.

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 Westmont's climate page.

Westmont Temperature in December

Min Temperature -5°C (23°F)  

Max Temperature 3°C (37°F)  

Chance of Rain 53%  

Precipitation 81 mm (3.2 in)  

Rainy days 16 days  

Humidity 76% *  

Windspeed 5 m/s (10 knots) *  

Sunshine 107 hours *  

Percentage Sunshine 37% *  

* Data from: Chicago, the United States of America (21 KM, 13 Miles).

What to Wear in Westmont 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. Prepare for significant rainfall with proper waterproof clothing and shoes. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Westmont in December

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

Swimming

5/10

Cycling

3/10

Walking

3/10

Camping

1/10

Outdoor sports

3/10

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 Westmont's climate page.

More climate data for Westmont

Temperature Rainfall Sunshine Humidity Wind Speed

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