When:
March 23, 2023 all-day
2023-03-23T00:00:00-04:00
2023-03-24T00:00:00-04:00
Where:
Worldwide event
Cost:
Free
Contact:
United Nations - World Meteorological Organization

The 2023 theme and webpage have not been posted (1 Sept 2022)

The World Meteorological Organisation (WMO), an organization of the United Nations, was created on 23 March 1950 to replace the International Meteorological Organization. It began operations in 1951 to coordinate member nation in the fields of meteorology, operational hydrology, and Earth sciences for the security of their population. The first World Meteorological Day was held on 23 March 1961.[5][6] Wikipedia entry