December in Blaine averages a daily high of -1.6°C with nights around -9.7°C. Expect roughly 4.8 wet days totalling 18.1mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Blaine is May–June.
Based on MINNEAPOLIS CRYSTAL AIRPORT, MN US (14.3km), 1995–2024. 28 years of December data.