Reston Weather in December

The climate in Reston during December can be summarized as cool and a little damp.

December is in the winter in Reston and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cold 8°C (46°F), whilst at night -3°C (27°F) is normal.

On average December is the 5th driest month of the year in Reston with around 84mm 3.3 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 4.7 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Reston in December 2024.