Colorado Climate Center
Colorado State University

Colorado Drought Status Briefing

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Drought Resources

Most Recent Colorado Modified Palmer Index

Click the map to access data for each region

".out" files are Palmer Index values with columns: Year, Month, Avg Temp, Avg Precip, Temp Departure, Precip Fraction, Palmer Index

".spi" files are Standardized Precipitation Indices with columns: Year, Month, 3 Month SPI, 6 Month SPI, 9 Month SPI, 12 Month SPI, 24 Month SPI, 48 Month SPI

New climatic division for Colorado chosen for calculation of local Palmer Index values. Names and additional divisional information are given in Table here.

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Colorado State University
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