THEMA:

To display the rainfall over a longer period there are several possibilities.

For example a month:
I think, the best way to display, whats happen during the month, is to display the "resolution-summary" as a "bar" and the accumulation over the month as a plotted (rising) line. With NO Reset at the end of the day.

Like this here:

We can see, the bars with a resolution of 10 min and a accumulation plot over a period from 20 days




The same Period, but with 1day-bars




I think, the visualiszation in meteotemplate should be like above. Here is the actual plot:

OK, I see what you mean, yes I could look at that, your picture makes more sense, but it would have to be changed in the core files so during an update of the whole template (most likely v14 - see blog post What is coming)