Michiganders Spent $341 Million on Recreational Marijuana In 2020 Michiganders definitely took advantage of recreational marijuana during the pandemic and throughout 2020. The state reported a combined sales of $341 million in recreational marijuana sales for 2020 and that number is just a preview of what sales could be in the coming years. Marijuana was officially legal on December 1, 2019, but it was months before local governments approved the sale of recreational marijuana and then ever more time before the recreational shops had their permits approved. And now that the industry has a foothold in the state and more and more shops are opening up, expect 2021's total sales to show a significant increase.