Galena Weather in December
Galena in December sees very low daytime temperatures of 1°C (34°F) and nighttime lows of -8°C (18°F). Rainfall is fairly high this month at around 68 mm (2.7 in), so pack a rain jacket to stay dry.
Rainfall in Galena in December
Past climate data indicates that roughly 12 days will see snow/rain, totalling around 68 mm (2.7 in) for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Galena in December
In December, Galena sees very low temperatures, with highs of 1°C (34°F). Nights drop to around -8°C (18°F). The month of December belongs to the winter season. Time outdoors is usually more comfortable with proper winter clothing and protection from wind. With lows of -8°C (18°F), nights are freezing. Packing a spare blanket is worth considering if you're staying somewhere that might not be fully heated. With temperatures this low, you'll need to dress warmly. Staying prepared is crucial to avoid the discomfort of the cold.
Sunshine in Galena in December
The area enjoys a balanced 107 hours of sunlight, ensuring it's neither too overcast nor too sunny.If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Galena. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Galena's climate page.
Galena Temperature in December
Min Temperature
-8°C (18°F)
Max Temperature
1°C (34°F)
Chance of Rain
40%
Precipitation
68 mm (2.7 in)
Rainy days
12 days
Sunshine
107 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Galena typically stay consistent throughout December, with daily highs averaging around 1°C (34°F). Nights are very cold, with lows typically ranging from -10°C (14°F) to -5°C (23°F).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather for Galena in December
Browse day-by-day weather records for Galena spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Galena historical weather extremes in December
The extremes listed below come from historical weather data collected in Galena from 1976 through 2025.
- The warmest day in December was on December 4, 1998, with a maximum of 19°C (66°F).
- The wettest day in December Galena was on December 13, 2015 with 47 mm (1.9 in) of precipitation.
Best Places in the United States of America in December
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in December →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Galena in December
Cold weather calls for smart layering in December. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Rain gear is recommended, you can expect wet weather on multiple days. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Galena in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Galena's climate page.
See the full Galena climate overview or explore weather in the United States of America.
