January in La Crosse averages a daily high of -4.3°C with nights around -11.9°C. Expect roughly 9.4 wet days totalling 26.5mm. A hard month to visit for comfort alone.
Across the year, the best time to visit La Crosse is June–September.
Based on LA CROSSE WEATHER FORECAST OFFICE, WI US (4.5km), 1995–2024. 24 years of January data.