When will the leaves change its colors?

This map is by The Weather Channel. This is a showing of the normal peak periods for when the leaves are at the optimal autumn color.

If one is to analyze the map, there are many conclusions to gather from this. Among them, elevation being a major factor. The areas with the earliest peak dates are often in the highest elevations. This would make sense considering that the areas with the highest elevations tend to get colder earlier. Places further north have earlier peak dates, due to weather conditions.

Another thing to consider is the types of trees in an area. Obviously, the autumn foliage is going to be with deciduous trees, those that lose their leaves in autumn. Places with large numbers of evergreen trees may not see much autumn foliage. And many places do not have large numbers of trees at all.