怎么样读？

Has anyone grown up pronouncing 蹲 (dūn, as in squat) like zhūn?

I used to think that zhūn was a weird peculiarity of mine (picked it up from my mum, I think), but Shan just told me that her mum pronounces it like that too. Also, 锅 (guō, as in pot) like wō. I'm guessing it's dialect influence of some sort?