Data used to estimate monthly water budgets at Panola Mountain Research Watershed, Panola Mountain State Park, Stockbridge, Ga. for water years 1986-2015. Data include: (1) hourly air temperature and solar radiation data used to calculate potential evapotranspiration using the Priestly-Taylor equation; (2) unit-value streamwater stage and streamflow; (3) unit-value base flow determined from a hydrography separation using the Eckhardt filter, (4) daily water budgets components, and; (5) edit code descriptions for streamwater stage and precipitation data for items 2 and 4.