WMO defines 'climate' as period of 3 decades, not sporadic events

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Via EPA.gov "Glossary of Climate Change terms"

"Climate

Climate in a narrow sense is usually defined as the "average weather," or more rigorously, as the statistical description in terms of the mean and variability of relevant quantities over a period of time ranging from months to thousands of years. The classical period is 3 decades, as defined by the World Meteorological Organization (WMO)."...

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