Illinois patients legally purchased $2.9 million worth of medical marijuana products in July.
State officials with the medical cannabis pilot program released the figures Wednesday. June sales had been $2.57 million.
Sales have climbed steadily since purchasing began Nov. 9.
Illinois now has nearly 8,891 qualified medical marijuana patients and 40 registered dispensaries.
July's figures bring the total retail sales of marijuana in Illinois to $16.3 million.