National Ice Cream Day, as well as National Ice Cream Month (I'm not kidding), are "official" holidays designated by then-President Ronald Reagan following a joint resolution from Congress. That July 1984, is hereby proclaimed as "National Ice Cream Month", and July 15, 1984, as "National Ice Cream Day", and the President is authorized and requested to issue a proclamation calling upon the people of the United States to observe ice cream month and ice cream day with appropriate ceremonies and activities. California leads the nation in ice cream production and yes, they also generally exempt "milk and milk products, including ice cream, ice milk and ice cream and ice milk novelties, sherbets, imitation ice cream, and imitation ice milk, dried milk products, sugar of milk, milkshakes, malted milks, and any other similar type beverages composed at least in part of milk or a milk product and requiring the use of milk or a milk product in their preparation." Plain ol' ice cream is the most popular category of frozen desserts: U.S. ice cream companies made more than 898 million gallons of regular ice cream in 2015. My/Mo Mochi Ice Cream is partnering with UNIQLO for an in-store pop up in honor of National Ice Cream Day.

Source: Forbes July 21, 2019 15:50 UTC