Weather in Janesville in December
Janesville, United States averages a high of 0.9°C (33.6°F) and low of -6.3°C (20.7°F) in December, with 8 rain days and 5.2 hours of daily sunshine. Travel score: 42.9/100 (Mixed). The best time to visit Janesville is July.
High
1°C34°F
Low
-6°C21°F
🌧️
8
rain days
☀️
5.2
hrs/day sunshine
💧
75%
humidity
43— Mixed
December in Janesville is cold and mostly dry — bring heavy winter clothing.
What are the average temperatures in Janesville?
How much does it rain in Janesville in December?
Janesville receives an average of 50.2mm of rainfall across 8 rainy days in December. The annual total is 871.2mm.
What should I pack for Janesville in December?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Heavy winter coat
Cold weather with highs around 1°C
🩳
Thermal base layers
Stay warm in freezing temperatures
🧤
Warm gloves
Cold nights around -6°C
🧣
Warm scarf
Protect against cold winds
Traveling to United States in December?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31