html_url,issue_url,id,node_id,user,created_at,updated_at,author_association,body,reactions,performed_via_github_app,issue
https://github.com/pydata/xarray/issues/4575#issuecomment-726921555,https://api.github.com/repos/pydata/xarray/issues/4575,726921555,MDEyOklzc3VlQ29tbWVudDcyNjkyMTU1NQ==,31640292,2020-11-13T17:57:48Z,2020-11-13T17:57:48Z,CONTRIBUTOR,"> 
> Yes, I think you could change
> 
> https://github.com/pydata/xarray/blob/b76a13f042571d01ca07461f13125a030f7297ea/xarray/core/formatting.py#L144
> 
> to `np.issubdtype(x, np.floating)` so it formats all floats.

This seems simple enough and fixes the main issue I was facing. I may look into the more extensible changes later if I have time, they would still be nice to have.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,741200389
https://github.com/pydata/xarray/issues/4575#issuecomment-726635243,https://api.github.com/repos/pydata/xarray/issues/4575,726635243,MDEyOklzc3VlQ29tbWVudDcyNjYzNTI0Mw==,10194086,2020-11-13T08:55:20Z,2020-11-13T08:55:20Z,MEMBER,"Yes, I think you could change
https://github.com/pydata/xarray/blob/b76a13f042571d01ca07461f13125a030f7297ea/xarray/core/formatting.py#L144
to ```np.issubdtype(x, np.floating)``` so it formats all floats.

The other seems a bit more complicated: `set_title` has a `template`
https://github.com/pydata/xarray/blob/b76a13f042571d01ca07461f13125a030f7297ea/xarray/plot/facetgrid.py#L461
but it uses `format_item` to format the numbers first
https://github.com/pydata/xarray/blob/b76a13f042571d01ca07461f13125a030f7297ea/xarray/plot/facetgrid.py#L26
you could probably add a `float_format=""{:.4}""` keyword argument to this function and `set_titles`.

We'd be happy to take a PR.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,741200389