Recreational marijuana sales in Colorado took a month-over-month dive in September for the first time since the drug was legalized. The Colorado Department of Revenue says retailers sold $31,626,965 in recreational marijuana in September – down 7.3 percent from August’s retail sales of $34,125,200. The sales of medical marijuana also dropped 2.9 percent in September to $31,626,965 from $33,370,431 in August, but those statistics aren’t as unusual. The medical marijuana market has seen random ups and downs since topping out at $36,040,335 in sales in February. Since January 1st, Colorado has brought in more than $52.4 million in taxes, licenses and fees for recreational and medical marijuana.