In my family (from Eccles on the west of Manchester) it was only lucky to say it on 1st of March whereas my wife (from Oldham on the east of Manchester) has the mistaken impression that it is lucky to say it on the 1st of any month which is obviously arrant superstition.

My son in law tells me that around the Isle of Portland it is unlucky to say the word rabbit. So much so that they produced local versions of the advert for the Wallace and Grommit film Curse of the Were Rabbit