Great feedback, thanks. This is why I always published complete monthly data as per the original post 
I agree with this and I’ve taken the dashboard down. It was intended as a POC, and as a result is very limited by the software used so it simply isn’t feasible to implement any of the suggestions as is. The plan was to develop further using a fully developed charting library (as that is where the bulk of the work is) using the same backend but I’ll save that for (much) later or perhaps someone can use this example and the above discussion to implement it in an existing solution.