January in Gastonia averages a daily high of 11.6°C with nights around -0.3°C. Expect roughly 9.5 wet days totalling 100.5mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Gastonia is April–May.
Based on GASTONIA, NC US (4km), 1995–2024. 27 years of January data.