March in Cranston averages a daily high of 9°C with nights around -0.8°C. Expect roughly 11.2 wet days totalling 124.6mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Cranston is May–September.
Based on RHODE ISLAND T.F. GREEN INTERNATIONAL AIRPORT, RI US (6.4km), 1995–2024. 30 years of March data.