April in Germantown averages a daily high of 17.9°C with nights around 6.3°C. Expect roughly 11.1 wet days totalling 89.5mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Germantown is August–October.
Based on DAMASCUS 3 SSW, MD US (10.8km), 1995–2024. 29 years of April data.