Cite
 

Meaning of St. Swithin's Day

St. Swith•in's Day

Pronunciation: (swi'unz), [key]
  1. July 15, superstitiously regarded as a day that, should it rain or be fair, will be followed by 40 consecutive days of like weather.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.