The Frog and Toad Migration Moon waxes until it becomes completely full October 15. Rising in the evening and setting in the morning, the moon will be overhead around midnight. Full moon should strengthen the traditional mid-October cold front, increasing the chances for frost and even snow fluries. And this stage of the lunar orb may affect more than the weather. According to lunar lore, full moon is likely to cause problems for healthcare workers – making patients more difficult to deal with,