As of late 2024, the average price for an ounce of cannabis flower varies widely depending on the state. Here are some notable examples: California: Approximately $74 per ounce, Michigan: Around $83.71 per ounce, Colorado: Roughly $150 per ounce, Illinois: About $257 per ounce, New Jersey: Over $300 per ounce, Connecticut: Similar to New Jersey, with prices exceeding $300.