Glen Ellyn Weather in December

Glen Ellyn in December sees low daytime temperatures of 3°C (37°F) and nighttime lows of -6°C (21°F). Rainfall is fairly high this month at around 82 mm (3.2 in), so pack a rain jacket to stay dry.

Rainfall in Glen Ellyn in December

This month experiences about 13 days of snow/rain according to historical data, averaging 82 mm (3.2 in). A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Glen Ellyn in December

In December, Glen Ellyn sees low temperatures, with highs of 3°C (37°F). Nights drop to around -6°C (21°F). Winter occurs in December. It stays very cold throughout much of the day, so warm winter clothing is essential. With lows of -6°C (21°F), nights are freezing. Packing a spare blanket is worth considering if you're staying somewhere that might not be fully heated. This month is known for its biting cold, so make sure to dress warmly. Proper preparation can help you stay cozy.

Sunshine in Glen Ellyn in December

The month brings about 107 hours of sunlight, offering a comfortable mix of sun and overcast.

Wind Speed in Glen Ellyn in December

Average wind conditions reach 5 m/s (10 knots) in December. This creates lively weather with fresh winds that make small trees sway noticeably. Remember this is an average: some days are less windy while others have particularly active windy conditions.

If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Glen Ellyn. Our weather planner can help you explore destinations with more pleasant weather conditions.