Colorado's love of pot is its school system's greater gain.

Marijuana sales in Colorado reached a record high in January, and the sales brought in an excise tax of almost $2.35 million for public schools, The Denver Post reports.

Recreational marijuana sales were around $36.4 million, up from $14.69 million last January. And from December to January, the school tax sum increased by 21 percent, up from $1.97 million.

"This is really what we expected and hope to see: a shift in the underground market to a regulated market," legalization advocate Mason Tvert told the Post. "It's clearly generating significant revenue for the state."

Colorado dispensary owners told the Post that increased numbers of tourists have also helped sales. Meghan DeMaria