This is a solemnity on March 19th ,but In order to accommodate the parish tradition of having a St. Joseph's Altar, it may be necessary to celebrate this feast on its vigil or else as a Votive Mass on the nearest practicable date to the 19th.

This falls during Lent

The Liturgical color is white (or gold)

The Proper of the mass is at DWM pg. 704

Preface is the Preface of Saint Joseph (DWM pg. 614)

Traditional St. Joseph's Altar following Mass