Well, I don't know what the temperature in CO is like at the moment, but I've done my cladding a few days ago at the underground parking where it was like +5C/+10C and it worked quite well. Took more than an hour to cure, but worked nonetheless.
I opted for the grey SRN dye in hopes it would match my Kaiser VX. It's not the exact match of course, but I do like the look. I'll snap a few photos when I take it out on a snow.
Thanks again Kat! My cladding looked simply horrible with faded spots all over before.