March in Johnson City averages a daily high of 15.4°C with nights around 1.9°C. Expect roughly 12.8 wet days totalling 93.1mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Johnson City is April–May.
Based on ELIZABETHTON, TN US (10.4km), 1995–2024. 28 years of March data.