Wildwood 

All the cycling clothing companies are telling me (in their ads) to cover my knees.
It is a philosophy I have adhered to for many years.

But at what temperature do you switch to knickers or knee covers with your shorts?

Desert lifestyles need not brag, but it gets cold at altitude locations - I froze at times in Las Vegas and hills/mts outside Los Angeles.

I just took delivery of a lightweight pair of knickers that work in the 57°-63° overcast Puget Sound autumn days.

Every body deserves to be comfortable in a chill.
Because, it's not always about th bike.