Despite some drought relief out west (see U.S. Drought Monitor , still drought but generally less severe) Lake Mead has made little improvement. The graph here is from the data on the Lake Mead at Hoover Dam, End of Month Elevation (feet) page by the Bureau of Reclamation.
The Sept Lake Mead post and the July Lake Mead post, which has a link to the R code for the graph.
