PDSI (Palmer Drought Severity Index) Record from 760 A.D.–Present⁶:
Study Page:
ftp://ftp.ncdc.noaa.gov/pub/data/paleo/drought/NAmericanDroughtAtlas.v2/readme-NADAv2-2008.txt
Data Page:
ftp://ftp.ncdc.noaa.gov/pub/data/paleo/drought/NAmericanDroughtAtlas.v2/NADAv2a.txt
The data can be easily read by copying and pasting them into an Excel file. The rows are years and the columns are data points. The point closest to Canaveral National Seashore is 250.