January in Cary averages a daily high of 10.8°C with nights around 0.2°C. Expect roughly 7.3 wet days totalling 90.7mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Cary is April–May.
Based on RALEIGH STATE UNIVERSITY, NC US (7.4km), 1995–2024. 29 years of January data.