The Pagan Book of Days for Friday, July 15th
Ides of July/Olympic New Year/Rowana/St. Swithin/Egyptian Day
The rowan tree goddess Rowana or Rauni, is patroness of the secret knowledge of the runes. The rowan is the tree of protection, and its wood, used in making defensive amulets, is especially effective if cut on this day. St. Swithin’s Day is a weather marker. If it rains this day, it is said to then it will rain for the next forty days.
Reference
The Pagan Book of Days
Nigel Pennick
Witches Of The Craft® 