Hi Karen........Yes, there is a correlation between weather and dry mouth; anyway I think there is. Winters are extremely hard on my oral cavity. I am from Minnesota where the winters are long, cold, dark, snowy and DRY! When walking my dog I wear one of those white surgical masks because being a mouth breather my oral cavity just gets too dry. The mask seems to help even though it is ugly, but hey, a girls gotta do what a girls gotta do......
If I don't cover my mouth I end up with dozens of mouth sores and cracked,dry bleeding lips much like what you have described. As it is I use a lot of Carmex on my lips to prevent the chapping and that helps some. Sleeping at night is difficult for me and that is with a humidifer going in my bedroom. I still suffer from the dryness in the air. Winter can be an awfully long season. Water is the one and only thing that gives me any relief. I have tried every OTC capsule, throat loungzen, and even tried the Biotene gum to see if that would help. Nothing works except the water......if ever anybody finds anything on the market to help with the dry mouth be sure and share it with us. Sincerely, Donna