Members

WMO has 187 Member States and 6 Member Territories
- composed of 20 Member States with capitals in the Region, 5 Member States with capital outside the Region and 2 Member Territories.
Member States / Territories Date joined
Region IV: North America, Central America, Caribbean
16 November 1988
Region IV: North America, Central America, Caribbean
29 November 1973
Region IV: North America, Central America, Caribbean
22 March 1967
Region IV: North America, Central America, Caribbean
25 May 1982
Region IV: North America, Central America, Caribbean
24 September 1953
Region IV: North America, Central America, Caribbean
28 July 1950
Region III: South America
5 January 1962
Region IV: North America, Central America, Caribbean
16 December 1960
Region IV: North America, Central America, Caribbean
4 March 1952
Region IV: North America, Central America, Caribbean
12 September 1951
Region IV: North America, Central America, Caribbean
21 February 1980
Region IV: North America, Central America, Caribbean
15 September 1949
Region IV: North America, Central America, Caribbean
27 May 1955
Region VI: Europe
5 December 1949
Region IV: North America, Central America, Caribbean
21 March 1952
Region IV: North America, Central America, Caribbean
14 August 1951
Region IV: North America, Central America, Caribbean
10 October 1960
Region IV: North America, Central America, Caribbean
29 May 1963
Region IV: North America, Central America, Caribbean
27 May 1949
Region VI: Europe
12 September 1951
Region IV: North America, Central America, Caribbean
27 February 1959
Region IV: North America, Central America, Caribbean
12 September 1967
Region IV: North America, Central America, Caribbean
2 March 1981
Region IV: North America, Central America, Caribbean
1 February 1963
14 December 1948