Washington Weather in December

December in Washington sees daytime temperatures around 8°C (46°F) and lows of 3°C (37°F) at night. With around 67 mm (2.6 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Washington in December

You can expect rain on roughly 17 days based on historical data, averaging 67 mm (2.6 in) for the month. Rain is frequent but mostly light this month, with brief showers more common than heavy downpours.

Temperature in Washington in December

Temperatures in Washington in December top out at 8°C (46°F) and drop to 3°C (37°F) overnight. December is a notable month of the winter season. Temperatures remain on the cold side all day. A proper warm jacket is worth having, not just for evenings. With lows around 3°C (37°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Washington in December

The area experiences limited sunny days, amounting to roughly 53 hours of sunshine. This makes it perfect for those who lean towards cooler, cloudier settings rather than intense sunlit days.

December in Washington 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.