Capezio Ballet Shoes Feast Day of St. Vitus, June 15

The saint's feast day is also the subject of a popular weather rhyme: "If St. Vitus' Day be rainy weather, it shall rain for thirty days together". This rhyme often appears in such publications as almanacs; its origin is uncertain.

Sounds about1/3 right (so far)...

 St. Vitus has a lot of patronages. For: actors, dancers, dogs, over-sleepers, comedians. Against: snake bites, storms, epilepsy, and of course, St. Vitus Dance (Sydenham's chorea).