Photo Gallery: First day of Winter brings cold spell to the area

A tree on Lynnhaven Lane wears a sweater as temperatures drop on the first day of Winter in La Cañada Flintridge on Thursday, Dec. 21, 2017.

(Raul Roa / Staff Photographer)

Dec. 21, 2017 2:39 PM PT

Photo Gallery: First day of Winter brings cold spell to the area

A hiker walks past a large array of roots on the Zwitzer Falls Trail in the Angeles National Forest north of La Cañada Flintridge on the first day of Winter, Thursday, Dec. 21, 2017.

(Raul Roa / Staff Photographer)

The leaves of a Sycamore turns colors on the Zwitzer Falls Trail in the Angeles National Forest north of La Cañada Flintridge on the first day of Winter, Thursday, Dec. 21, 2017.

(Raul Roa / Staff Photographer)

A hiker from Hancock Park shows her cargo on the Zwitzer Falls Trail in the Angeles National Forest north of La Cañada Flintridge on the first day of Winter, Thursday, Dec. 21, 2017.

(Raul Roa / Staff Photographer)

Sycamore leaves and others pile up as winds kick up on the Zwitzer Falls Trail in the Angeles National Forest north of La Cañada Flintridge on the first day of Winter, Thursday, Dec. 21, 2017. (Raul Roa / Staff Photographer)

The low sunlight rakes across leaves and rocks on the Zwitzer Falls Trail in the Angeles National Forest north of La Cañada Flintridge on the first day of Winter, Thursday, Dec. 21, 2017. (Raul Roa / Staff Photographer)