Reston Weather in December

With daytime temperatures of 9°C (48°F) and nighttime lows of -1°C (30°F), December in Reston brings low temperatures during the day. Do keep in mind that quite a bit of snow/rainfall is typical. Around 96 mm (3.8 in) falls on average.

Rainfall in Reston in December

Historically, approximately 11 days this month are expected to have snow/rain, averaging 96 mm (3.8 in). The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Reston in December

Daytime temperatures in Reston reach 9°C (48°F) in December, dropping to -1°C (30°F) at night. During December, the winter season is in full swing. Cold conditions persist throughout the day, so warm clothing is important from the moment you head outside. With overnight lows of -1°C (30°F), temperatures fall below freezing at night. An extra thick blanket can make a real difference if your accommodation runs cold.

Sunshine in Reston in December

The area enjoys a balanced 130 hours of sunlight, ensuring it's neither too overcast nor too sunny.

December in Reston 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 Reston's climate page.

Reston Temperature in December

Min Temperature -1°C (30°F)  

Max Temperature 9°C (48°F)  

Chance of Rain 37%  

Precipitation 96 mm (3.8 in)  

Rainy days 11 days  

Humidity 64% *  

Sunshine 130 hours *  

Percentage Sunshine 45% *  

* Data from: Washington DC, the United States of America (30 KM, 18 Miles).

What to Wear in Reston in December

Dress warmly and in layers for your trip to Reston in December. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. Expect heavy rainfall, so bring good rain protection and waterproof bags. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Reston 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 Reston's climate page.

More climate data for Reston

Temperature Rainfall Sunshine Humidity

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