perhumid climate

perhumid climate

[¦pər′hyü·məd ′klī·mət] (climatology) As defined by C. W. Thornthwaite in his climatic classification, a type of climate which has humidity index values of +100 and above; this is his wettest type of climate (designated A), and compares closely to the “wet climate” which heads his 1931 grouping of humidity provinces.