December in Stratford averages a daily high of 6.5°C with nights around -1.1°C. Expect roughly 11.7 wet days totalling 103.8mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Stratford is June–September.
Based on IGOR I SIKORSKY MEMORIAL AIRPORT, CT US (2.3km), 1995–2024. 30 years of December data.