I think I have the idea and time period for what I want to do! We have a pretty big temperature range here in Illinois so there will be quite a range of colors. I'm not so sure about them and how many I will need, but having the design plan I can work on that part next.
I've seen so many really wonderful projects on this concept and would would love to see a collection of work by our talented board members, so please post your pictures. Or is it an idea or bucket list item in the back of your mind somewhere? If so, join in with the comments.
Also, I'm sure I can find it but does anyone have a good link to historical weather by location? With just highs and lows it should be easy to find, and I can parse data and download if needed