This visualization shows a week of temperature readings in San Francisco as a smooth area chart, with time on the x-axis and temperature on the y-axis. The data is loaded from a CSV file, with timestamps parsed as dates and temperatures as numbers. Built with D3 v5, the code uses `scaleTime`, `scaleLinear`, `area`, and `curveBasis` to generate the filled path, alongside `axisLeft` and `axisBottom` for labeled axes with gridlines. The SVG output includes a maroon area, axis labels, and a title, all styled via external CSS.