issue_comments: 909335676

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https://github.com/pydata/xarray/pull/5731#issuecomment-909335676 https://api.github.com/repos/pydata/xarray/issues/5731 909335676 IC_kwDOAMm_X842M1x8 2448579 2021-08-31T15:19:57Z 2021-08-31T15:19:57Z MEMBER

Ouch here's the problem: da_a has dtype int if it has no NaNs. this dtype could change but need not change after the masking.

Importantly skipna=False by default for int dtypes (since they can't represent NaNs).

The fix is to specify skipna=True explicitly in the .mean calls.

Alternatively we could stick an .astype(float) in _get_valid_values

 
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