Histogram x-values for buckets

I made a histogram of temperature data and grafana put the values in buckets. Really cool.
When I hoover over the buckets grafana gives me the counts in the bucket.
But now I would like to know the exact corresponing x-Value. In the hover tooltip the x-Value is not includet and using the scale from the x-Axis is not exact enough.
Did i miss a setting?

  • How can I get the exact X-values for the buckets?

Grafana: 6.0.0

Thanks a lot!
Greetings Andreas