Annual Release Window and Official Dates
The Shamrock Shake is a seasonal mint-flavored milkshake sold by McDonald's, typically launching in late February and remaining available through March or early April. The exact start date varies by country and individual restaurant, but the product is part of a coordinated national or regional promotional calendar managed by McDonald's corporate and its licensed operators. The shake is tied to the proximity of St. Patrick's Day, which falls on March 17, and McDonald's uses this date as a marketing anchor for the product launch. For current availability windows, the company's official site provides regional rollout details here.
McDonald's does not publish a single global start date for the Shamrock Shake; instead, it releases the product in phases based on local market strategy and franchisee agreements. In the United States, the shake usually appears on menus in the last week of February, with full national availability often achieved by the first week of March. The seasonal window is short, typically lasting four to six weeks, after which the product is removed from the menu until the following year. This compressed availability is a deliberate scarcity tactic that drives foot traffic and social media engagement during the launch period.
Pricing, Nutrition, and Menu Positioning
The Shamrock Shake is priced as a premium seasonal item, typically costing between $4 and $6 USD in the United States, depending on the size and location. The product is positioned as a limited-time offer, which allows McDonald's to charge a slight premium over standard menu items while still maintaining a high sell-through rate. Nutritional information varies by size, with a small Shamrock Shake containing approximately 530 calories, 17 grams of fat, and 73 grams of sugar. The shake is available in small, medium, and large sizes, and it is classified as a dessert or beverage item on the McDonald's menu.
Nutritional Breakdown and Allergen Information
The shake contains milk, sugar, cream, and artificial and natural flavors, with green food coloring added for its signature mint appearance. It is not vegan or dairy-free, and it contains common allergens including milk and soy. Nutritional data is published on the McDonald's website and can be accessed by consumers using the nutrition calculator here. The product is also listed in the USDA FoodData Central database when aggregated with other McDonald's items, providing third-party verification of its caloric and macronutrient content.
Availability, Retail Channels, and Corporate Structure
The Shamrock Shake is primarily sold at McDonald's restaurants in the United States, Canada, and select international markets, but it is not available through grocery retail channels. The product is manufactured and distributed through McDonald's supply chain, which includes regional dairy and flavoring partners. Franchisees are responsible for stocking the shake during the seasonal window, and availability may vary based on local supply agreements and store-level inventory decisions. For corporate information on McDonald's seasonal product strategy, the company's investor relations page provides financial context here.
McDonald's is a publicly traded company listed on the New York Stock Exchange under the ticker symbol MCD, and its seasonal products like the Shamrock Shake contribute to short-term revenue spikes in the first quarter. The company's 10-K annual filing with the SEC provides detailed segment reporting on revenue by geographic region and product category, including limited-time offers. The shake's limited availability is a key driver of its cultural and commercial relevance, and it consistently ranks among the most anticipated seasonal fast-food items in consumer surveys. For official financial disclosures, the SEC filing can be accessed