Meanings
proper noun
- A regional index using precipitation and temperature data to study moisture supply and demand.
Synonyms: Palmer index, PDSI
Synonyms & antonyms
proper nounA regional index using precipitation and temperature data to study moisture supply and demand.
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Also see
Origin
Developed by meteorologist Wayne Palmer.
Full word history & related roots →Cite this entry
APA
Palmer drought index. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/Palmer%20drought%20index
MLA
“Palmer drought index.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Palmer%20drought%20index. Accessed November 5, 2026.
Chicago
WatkinsX Dictionary, s.v. “Palmer drought index,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/Palmer%20drought%20index.
Source: Palmer drought index on Wiktionary, CC BY-SA 4.0.