I barely got to attend town feast, because for one I didn’t know their exact dates. Most of the time, dates of town feasts change depending on the Sundays of the year or to some, they just stick to a specific date that no matter what, rain or shone, they celebrate this once a year town celebration.
Feasts back in the old days were celebrated to give thanks to their patron with a grandeur celebration with lotsa, lotsa food everywhere.