My hens are somewhere around 36 weeks old. I have 11 of them, before fall arrived I was getting between 6-8 eggs a day. Now I'm getting 1-3. They have not started to molt yet either. Could something be wrong? They look healthy and behave as they always have.
Shorter days, colder days, and the possibility that they are going through a 'mild' molt will all contribute to a reduction in laying. This is the time of year when that is considered normal. Have you checked them thoroughly to see signs of molting that might not be easily visible.