Compare Outdoor Temperature & Indoor

Yes, but I'm using a Lovelace Dashboard in Home Assistant (devices exported to it via the community Hubitat component), so probably more work than you might want just for that. :slight_smile:

Screenshot: temperature history graph in Home Assistant

For a Hubitat-only option, you might want to HubiGraphs. I have never used it but it looks like it should be able to do something similar:

I've also seen people log things to InfluxDB and visualize with Grafana (or a similar solution for either of these pieces), but Home Assistant was actually less work in my experience, though I already had a setup from before I moved to Hubitat, so probably not the best judge. Keep in mind that all of these solutions involve community code and are not fully built-in.

If you don't care for history or only want a couple pieces of history (e.g., temperature an hour or two ago), Hubitat Dashboard plus a couple virtual devices or Rule Machine variables for the historical data might be all you need--but it would just be text, not charted. However, in that case, all the pieces are built-in.

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