World Meteorological Day 2009

Weather, climate and the air we breathe

23 March 2009

Each year, on 23 March, the World Meteorological Organization, its 188 Members and the worldwide meteorological community celebrate World Meteorological Day around a chosen theme. This Day commemorates the entry into force, on that date in 1950, of the WMO Convention creating the Organization. Subsequently, in 1951, WMO was designated a specialized agency of the United Nations System.

This year, the theme is “Weather, climate and the air we breathe”.