That gap in ACT scores between Utah and the nation tightened this year as thousands of new test-takers drove down performance across the country, according to data released Wednesday by ACT. Utahâs graduating seniors earned an average score of 20.2 â on a 36-point scale â compared with the U.S. average of 20.8. The stateâs composite score is unchanged from 2015, while the national average ticked down from a score of 21 last year on the college readiness exam. Deputy State Superintendent Rich N... <iframe src="http://www.sltrib.com/csp/mediapool/sites/sltrib/pages/garss.csp" height="1" width="1" > </frame>