Select specific day over last X years?

I have a database with one entry per day. Is there a way to display a specific day over the last, say, three years?

For example: show a graph with the values of April 24, 2015-2017 next to each other.

There is no way to do this currently

I thought about it again: what about giving those days a speficic tag in InfluxDB and then use templating to select just this tag, zoom out heavily and then the graph just shows these days?

This might not be exactly what you want but have you looked at Time Shifting and Series overrides? It is definitely possible to show these values in different panels with time shifts. Unfortunately InfluxDB has no support for time shift functions yet but maybe in the near future.

https://localhost:3000/t/advanced-graphing-part2-visualize-timeshift/365

http://play.grafana.org/dashboard/db/time-range-override?orgId=1

Thanks, will try that out!