I, too, would appreciate any thoughts as to what constitutes "other" factors listed in the third bar of the "Next Full Charge" screen displayed at key-off. I live in southern Florida where temperatures range from 70's in winter to low 90's in summer. My routes vary with 90% suburban streets with speed <50mph and the rest is highway driving (in hybrid mode). What perplexes me is that despite widely varying temps, route, style, climate control usage, etc., etc., the "Outside temp./other" metric is always a significant negative influence on my estimated range; it never changes. It's a big fat amber bar stretching far to the left, all of the time. Maybe this factor could be improved if only I knew what "other" entailed. The owners manual is less than helpful in this regard.
I have a 2017 FFE with ~45,000 miles and get 22-23 miles on a full charge at present. Charge exclusively on 110v. OEM tires.