Janesville Weather in January

January in Janesville sees daytime temperatures around -2°C (28°F) and lows of -11°C (12°F) at night. As the driest month of the year.

Rainfall in Janesville in January

With the lowest rainfall figures of the year, conditions are ideal for exploring the outdoors, even if the temperatures require a jacket. Looking at the last 30 years, the data shows about 10 days with snow, averaging 36 mm (1.4 in) for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in Janesville in January

January in Janesville brings very low temperatures, with highs of -2°C (28°F) and nights around -11°C (12°F). January is known for being in the winter season. Expect a distinctly cold feel throughout the day, not just overnight. With lows of -11°C (12°F), nights are freezing. Packing a spare blanket is worth considering if you're staying somewhere that might not be fully heated. Expect the coldest temperatures of the year this month. Make sure you have enough winter clothing to stay warm.

Sunshine in Janesville in January

The area experiences a moderate amount of sunshine, with approximately 145 hours of sunlight expected. This means a decent mix of sun and overcast.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, July and September typically offer the best weather for Janesville.