December in Lansing averages a daily high of 2.2°C with nights around -4.8°C. Expect roughly 13.9 wet days totalling 49.8mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Lansing is May–September.
Based on LANSING CAPITAL CITY AIRPORT, MI US (6km), 1995–2024. 30 years of December data.