Rockville Weather in January

January in Rockville brings low temperatures, with highs of 5°C (41°F) and nights dropping to -4°C (25°F). Rainfall is on the higher side this month, averaging around 71 mm (2.8 in), so keep a rain jacket handy.

Rainfall in Rockville in January

Based on our climate data of the past 30 years, about 10 days of snow/rain are anticipated, with 71 mm (2.8 in) on average. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Rockville in January

If you're visiting Rockville in January, expect highs of 5°C (41°F) and overnight lows around -4°C (25°F). January marks the winter season. The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. With lows of -4°C (25°F), nights are freezing. Packing a spare blanket is worth considering if you're staying somewhere that might not be fully heated. Expect the coldest temperatures of the year this month. Make sure you have enough winter clothing to stay warm.

Sunshine in Rockville in January

With about 144 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. August typically offers the best weather for Rockville.