March in Pittsburgh averages a daily high of 11°C with nights around -0.6°C. Expect roughly 11.3 wet days totalling 75.3mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Pittsburgh is May–June.
Based on EMSWORTH L D OHIO RIVER, PA US (10.6km), 1995–2024. 29 years of March data.