December in Clifton averages a daily high of 7.2°C with nights around -0.9°C. Expect roughly 11.9 wet days totalling 107.1mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Clifton is May–June.
Based on TETERBORO AIRPORT, NJ US (9.1km), 1995–2024. 30 years of December data.