ARCHIVE
US Drought Monitor
Weekly US Drought Monitor (USDM) data archived as GeoParquet files with detailed metadata, January 4, 2000 – present.
Open data
Data archives
Authoritative, versioned datasets that underpin the project's analyses and the federal disaster-relief programs they study. Every archive is openly licensed, fully documented, and accompanied by reproducible code.
The project maintains two kinds of archive: public sources that the team mirrors and republishes in analysis-ready formats (the US Drought Monitor, Secretarial and Presidential disaster designations, FSA farm payment files, and the legacy FSA county boundary geodatabase), and FOIA-sourced records the team obtained directly from USDA FSA (county-level Normal Grazing Periods, LFP eligibility determinations, the LFP county boundaries used for eligibility, and the current FSA county boundary geodatabase).
The USDM-based archives update each Thursday with the latest weekly release. The FOIA-sourced archives are refreshed when new FOIA responses are received. Each card below links to a detailed README, machine-readable downloads, and (where available) an interactive dashboard.
ARCHIVE
USDM Reported County Aggregations
Archive of weekly US Drought Monitor (USDM) data aggregated to county boundaries as reported by the USDM.
DERIVED DATA
USDM Census County Aggregations
Weekly US Drought Monitor (USDM) data aggregated to US Census county boundaries.
DERIVED DATA
USDM LFP County Aggregations
Weekly US Drought Monitor (USDM) data aggregated to the Livestock Forage Program county boundaries.
FOIA ARCHIVE
FSA Normal Grazing Periods
Official county-level normal grazing period definitions from the USDA Farm Service Agency, 2008–2026.
FOIA ARCHIVE
Livestock Forage Program Eligibility
Official county-level eligibility data for the Livestock Forage Program from the USDA Farm Service Agency, 2008–2025.
ARCHIVE
FSA Disasters Archive
Records of US Secretary of Agriculture disaster designations and Presidential Major Disaster declarations.
FOIA ARCHIVE
Livestock Forage Program Counties
The county boundary dataset used to determine LFP eligibility from the USDA Farm Service Agency (snapshot as of September 2025).
ARCHIVE
FSA_Counties_dd17 Boundary Dataset
An archive of the FSA_Counties_dd17 dataset, originally distributed by the USDA Farm Service Agency.
FOIA ARCHIVE
FSA_Counties_dd22 Boundary Dataset
An archive of the FSA_Counties_dd22 dataset, obtained from the USDA Farm Service Agency via a FOIA request.
ARCHIVE
FSA Farm Payment Files, 2004–2024
Official farm payment files from the USDA Farm Service Agency, 2004–2024, available in Parquet format.