Delaware Weather in December

December in Delaware averages 5°C (41°F) during the day and -3°C (27°F) at night. Quite a bit of snow/rainfall is typical this month, with around 98 mm (3.9 in) on average. An umbrella is a good idea.

Rainfall in Delaware in December

Expect around 14 days of snow/rain based on historical data, with 98 mm (3.9 in) average. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Delaware in December

In December, Delaware gets low temperatures, with highs of 5°C (41°F). Nights cool to around -3°C (27°F). December is typically considered a winter month. Expect a distinctly cold feel throughout the day, not just overnight. At -3°C (27°F) overnight, frost and ice are likely outside. Indoors, consider packing an extra blanket if you're unsure about the heating. It's a notably cold month; make sure to wear layers to stay warm. It's wiser to gear up in advance than to be caught off-guard, trembling in the cold.

Sunshine in Delaware in December

The month is characterized by fewer sunny days, with roughly 84 hours hours of sunshine. Ideal for those who prefer a cooler, cloudier climate.

December in Delaware can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.