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Federal
Standardized Precipitation Index, 1895-2016
U.S. Department of Health & Human Services —
This dataset provides data at the county level for the contiguous United States. It includes monthly Standardized Precipitation Index (SPI) data from 1895-2016... -
Federal
United States Drought Monitor, 2000-2016
U.S. Department of Health & Human Services —
This dataset provides data at the county level for the contiguous United States. It includes weekly United States Drought Monitor (USDM) data from 2000-2016 provided...