Richland Weather in December

December in Richland typically sees daytime highs of 16°C (61°F) and nighttime lows of 4°C (39°F). Rainfall is also possible this month, so it's worth packing an umbrella. It falls within the winter season.

Rainfall in Richland in December

The climate data from previous years indicates about 10 days of rain, averaging 138 mm (5.4 in) for the month. 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 Richland in December

December in Richland brings moderate temperatures, with highs of 16°C (61°F) and nights around 4°C (39°F). The winter season is characteristic of December. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With lows around 4°C (39°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Richland in December

The city usually sees around 152 hours of sunlight, indicating a moderately sunny period.

For Richland itself, May and October generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.