Federal data released this week found there was no change in monthly marijuana use in nearly every U.S. state compared to last year. The only significant changes were in Rhode Island, Ohio and Hawaii, where monthly marijuana use fell year over year.
The latest state-level data, which asks participants if they used marijuana in the past month, is particularly useful, as it covers the first year of legal recreational marijuana in Colorado and Washington. While the rate of monthly teen marijuana use did tick upward in those states, the change wasn’t statistically significant, according to the Substance Abuse and Mental Health Services Administration (SAMHSA), which released the data.
In Colorado, 12.6 percent of 12- to 17-year-olds used marijuana monthly in the combined years 2013 and 2014, up slightly from 11.2 percent in 2012-2013. (SAMHSA combines years for state-level estimates to increase the sample size.) Similarly, in Washington, the monthly teen marijuana use rate was 10.1 percent in 2013-2014, compared with 9.8 percent in 2012-2013.