Grass Valley Weather in January

January in Grass Valley brings moderate temperatures, with highs of 12°C (54°F) and nights dropping to 2°C (36°F). Rainfall is on the higher side this month, averaging around 160 mm (6.3 in), so keep a rain jacket handy.

Rainfall in Grass Valley in January

Past climate data indicates that roughly 11 days will see rain, totalling around 160 mm (6.3 in) for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Grass Valley in January

Daytime temperatures in Grass Valley reach 12°C (54°F) in January, dropping to 2°C (36°F) at night. Experience the winter season in January. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With lows around 2°C (36°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, September and October typically offer the best weather for Grass Valley.