While public school teacher salaries are not exactly a Higher Education topic, it's not too hard to see the connection.
This is NCES Data from the 2013 Digest of Education Statistics, showing teacher salaries over time by state. The view defaults to Constant (inflation adjusted) dollars and 2013, but you can choose any year and nominal (not adjusted for inflation) dollars if you'd like. The map color codes for the year selected so you can see the range, and the bar chart shows the state-by-state breakout; the weighted US average on is shown on the bar chart in blue.
See the NCES table for notes about interpreting the data.
Note: My Tableau coding skills are still not what I'd like them to be; if anyone wants to download this and help me create parameters to allow the viewer to compare states by percent change over any two years selected, I'd be grateful.