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/7062#issuecomment-1254063029,https://api.github.com/repos/pydata/xarray/issues/7062,1254063029,IC_kwDOAMm_X85Kv3u1,39069044,2022-09-21T18:15:46Z,2022-09-21T18:15:46Z,CONTRIBUTOR,"Without `bottleneck`, I guess both options from the MVCE above get routed through `_mean`:
```python
>>> xr.set_options(use_bottleneck=False)
>>> da = xr.DataArray([1,2,3], coords={'x':[1,2,3]}).astype('float32')
>>> da.rolling(x=3, min_periods=1).mean().dtype
dtype('float64')
>>> da.chunk({'x':1}).rolling(x=3, min_periods=1).mean().dtype
dtype('float64')
```

And after #7063:
```python
>>> xr.set_options(use_bottleneck=False)
>>> da = xr.DataArray([1,2,3], coords={'x':[1,2,3]}).astype('float32')
>>> da.rolling(x=3, min_periods=1).mean().dtype
dtype('float32')
>>> da.chunk({'x':1}).rolling(x=3, min_periods=1).mean().dtype
dtype('float32')
```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,1381294181