December in Schaumburg averages a daily high of 1.4°C with nights around -6.7°C. Expect roughly 10.8 wet days totalling 56.6mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Schaumburg is June–September.
Based on BARRINGTON 3 SW, IL US (11.3km), 1995–2024. 26 years of December data.