Cecilia Brusatori shows how you can sort properly by month using Power BI:
Are your visualizations sorting the month field alphabetically? Don’t worry, I’ve been there when I started with Power BI.
If your model has a Dimension Date Table, first congrats, you’re on the right path in what respects to data model, second, you want to use the Month Name from that table, but you noticed that the visualizations don’t sort this column in the way we all wanted, from Jan to Dec.
Click through to see how.