Strangely enough, it's been in the upper sixties for three weeks!
I'm taking my time on the coop as I'll get my chicks in late April. I started with a $10 heavy duty wooden swingset off of Craigslist and have gotten nearly everything free except hardware. I even got all of my wire for free! I've spent less than $45 thus far and only need to put in the floor and sides. I watch CL like a chicken hawk and swoop in on supplies whenever I can.