Climatological standard normals

From Glossary of Meteorology



climatological standard normals

Averages of climatological data calculated for the following consecutive 30-yr periods, established by international agreement: 1 January 1901 to 31 December 1930; 1 January 1931 to 31 December 1960; 1 January 1961 to 31 December 1990; 1 January 1991 to 31 December 2020; etc.


See normal.


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