We had the first frost of autumn this morning in south-central Oklahoma, U.S.A. (-1°C). If our winter this year is near to average the chance of snow as shown in Birna's post above isn't likely until January.
The white ash trees are bare, the mockernut hickories (Carya tomentosa) and winged elms (Ulmus alata) nearly so. The white oak family members retain full foliage that on a few trees is just beginning to turn golden brown. We turned to a non-native species to get a bit of autumn colour: the snapshot below is of a Chinese pistache (Pistacia chinensis) that is thriving at our location.
Bob
edited for typo