【How-to】When do shamrock shakes come out

While McDonald’s has not shared an exact date for when the Shamrock Shake will be saying goodbye (until next year), we know that most seasonal menu items are around for 4-6 weeks. The shake arrived on Feb. 15, 2021, so this means, if it follows the 4-6 weeks rule, that it will be gone by next week, March 22.