Rosemead Weather in December

December in Rosemead averages 20°C (68°F) during the day and 8°C (46°F) at night. It is the wettest month of the year, with 80 mm (3.1 in) of rainfall on average, so waterproof gear is a must.

Rainfall in Rosemead in December

As the month with the most rain, you'll want to have an umbrella with you to manage the frequent showers. Historically, the month has about 8 days of rain, averaging 80 mm (3.1 in) in total. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Rosemead in December

The temperature in Rosemead in December is excellent. Daytime highs reach 20°C (68°F), with nights dropping to 8°C (46°F). The month of December belongs to the winter season. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With lows around 8°C (46°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep. Typically, this month presents some of the milder temperatures of the year, yet it remains pleasantly warm.

Sunshine in Rosemead in December

The month enjoys around 220 hours of sunshine, creating mostly sunny days with good weather conditions.

If you're inclined towards comfortable temperatures and drier conditions, December is a good time to visit Rosemead.