Possible bug(?) in xarray.groupby('time.month') operations

[Aidan (Aidan Heerdegen, ACCESS-NRI Release Team Lead)]

Just a heads-up @hrsdawson, this has been tagged as outofscope for ACCESS-NRI support because it is not a product or release we are responsible for. That doesn’t stop anyone from the team, or indeed anyone else, suggesting possible remedies, and thanks for pointing out there may be an issue affecting others.

If it does look like a bug it would be good to craft a minimal complete reproducible example (this can also be useful for your own debugging). See here for some tips:

How to create a minimal complete reproducible example

About Creating a minimal complete reproducible example (MCRE) of a code issue. (Also known as a minimal reproducible example (MRE), minimal working example (MWE), minimal verifiable example (MVE) and minimal complete verifiable example (MCVE)) Who is this for? Anyone who is asking for help with a coding issue. Why bother creating an MCRE? It makes it easier for anyone who is trying to assist. It is in your best interests to do this as it makes it more likely people will help you. It…

Good luck!