The backpack Edee is wearing during her long walk late in the film (not being too specific as it would be a spoiler) switches from one with side pockets and a bedroll at the bottom to a military-style pack with MOLLE straps and no bedroll and back again. She wore the latter pack in several earlier scenes.
During the first snow storm, Edee goes outside for firewood or some supplies. She is fully attired in snow gear including ski goggles. Immediately after she collapses inside the door, the goggles have come off her face as she is lying on the floor.
When Edee fetches water by the river, she jumps in to go after one of the jugs she lost hold of. When she gets back to her cabin, she is completely dry.
Winter is followed by Autumn in the movie. In reality Autumn occurs before winter and Spring follows winter.