March 23

Established on March 23, 1950, this day celebrates the creation of the WMO as a specialized agency of the United Nations. Each year, the WMO selects a theme—such as climate change, water resource management or disaster risk reduction—to focus global attention on key meteorological challenges. Events include scientific conferences, public exhibitions, school programs and social media campaigns. National meteorological services showcase advances in forecasting technology, data analysis and early warning systems. The observance underscores the vital role of meteorology and hydrology in safeguarding lives, property and the environment across the globe.