I save Fall for November so we will do squirrels, leaves falling, getting ready for winter, birds flying south, putting out the bird feeders, emptying the toys from the sandbox to store for the winter. Along with squirrrels and trees we usually talk about other forest animals.
I generally start my christmas unit with the US thanksgiving. We would watch the parade which ends with santa claus. Then when he is done at that parade he goes back to the north pole to get ready. He dropped off some look alike elves to go to shopping malls etc to get ideas from kids and parents to relay back to him. Christmas runs last week of Nov and first two of Dec. Then kids start to go on holidays, block leave (military), my kids used to come from University and life gets busy so we start to take it slower cause the kids are overwhelmed, exhausted from family events nights and weekends and appreciate the down time.