Can I exclude the bottom row from a Filter in Google Sheets?

I have a spreadsheet in Google Sheets, there is a header and 13 rows containing data.

There is then a row containing the average of the cells above.

I'd like to be able to sort the various columns in order of size, unfortunately whenever I try to do this the "Averages" row is sorted along with them.

Is there any way to exclude the bottom row from the filter?