Idaho foliage in 2025

The season as it actually happened, from daily ERA5 weather observations.

Peak hit around October 5

First strong color ~September 21 · past peak ~October 14 · bare by ~October 26

Color starts: September 21Peak: October 5Bare: October 26AugustDecember

Derived from 43 weather anchors · spread across the region ±6 days (higher elevations run earlier).