December in Conroe averages a daily high of 17.7°C with nights around 6.6°C. Expect roughly 8.7 wet days totalling 107.2mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Conroe is February–April.
Based on CONROE, TX US (3.3km), 1995–2024. 30 years of December data.