The patrons of Riofreddo are Saint George, celebrated on the Saturday after 23 April, and the Madonna dei Fiorentini, celebrated on the Sunday after 23 April and on the first Sunday of September.
The town's typical dish is sagnozzi, a peasant-origin pasta included in the list of Traditional Agri-food Products (PAT) of the Lazio Region; its territory holds the Castello Colonna-Del Drago, the Portale di Santa Caterina and the Oratorio della Santissima Annunziata.