Stone Mountain Weather in December

In Stone Mountain, December brings moderate daytime temperatures around 14°C (57°F), with nights cooling to 3°C (37°F). It is the wettest month of the year, so expect more rainfall than usual.

Rainfall in Stone Mountain in December

With frequent rain showers this month, having an umbrella on hand will keep you dry. You can typically expect 11 days of rain this month, averaging around 149 mm (5.9 in). 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 Stone Mountain in December

If you're visiting Stone Mountain in December, expect highs of 14°C (57°F) and overnight lows around 3°C (37°F). December is typically considered a winter month. Even when the weather is stable, mornings and evenings can still feel distinctly cool. With overnight lows of 3°C (37°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Stone Mountain in December

The month brings about 164 hours of sunlight, offering a comfortable mix of sun and overcast.

If your ideal day consists of dry skies and pleasant temperatures, April, May and October typically offer the best circumstances for Stone Mountain.