USGS HCDN

USGS Hydro-Climate Data Network: streamflow data set for the study of climate variations
Time: [Oct 1873,Sep 1988]; monthly

• County (unitless)
• daily
  Time: [1 Oct 1873,1 Sep 1988]; daily
  stream flow (cf/s) [ time ]
• District (unitless)
• drainage area (unitless)
• HUC (ids)
• latitude (degree_north)
• longitude (degree_east)
• monthly
  Time: [Oct 1873,Sep 1988]; monthly
  stream flow (cf/s) [ time ]
• Name (unitless)
• Non-contributing drainage area (unitless)
• National Geodetic Vertical Datun of 1929 (m)
• region (ids)
• State (unitless)