December in Racine averages a daily high of 1.8°C with nights around -5.3°C. Expect roughly 9.7 wet days totalling 54.9mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Racine is June–September.
Based on RACINE WWTP, WI US (2.6km), 1995–2024. 30 years of December data.