Mount Shasta Weather in December

Mount Shasta in December averages 6°C (43°F) during the day and -2°C (28°F) at night. This is the wettest month of the year, and part of the winter season.

Rainfall in Mount Shasta in December

Expect frequent, heavy rain this month, marking the peak rainfall period. A poncho will help protect you from getting soaked. Climate statistics over the past 30 years suggest around 16 days of snow/rain, with 195 mm (7.7 in) average for the month. Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.

Temperature in Mount Shasta in December

If you're visiting Mount Shasta in December, expect highs of 6°C (43°F) and overnight lows around -2°C (28°F). During December, you'll experience the winter season. Expect a cold feel throughout the day, not just in the mornings and evenings. Warm layers are essential. Nights drop below freezing to -2°C (28°F). An extra blanket is worth packing if you're unsure about the heating where you're staying. Since it's the coldest month of the year, you'll want to bundle up with extra layers and winter clothing.

December in Mount Shasta 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.