Northern Hemisphere Hoodie Hoo Day When is Hoodie Hoo Day? February 20 in the Northern Hemisphere, August 22 in the Southern Heisphere Northern Hemisphere Hoodie-Hoo Day is today, a February 20 holiday. On this cold winter day, people go out at noon, wave their hands over their heads, and chant “Hoodie-Hoo”. … Continue reading Other Hoodie-Hoo Day