This line chart displays one week of temperature data in San Francisco, with time on the x-axis and degrees Celsius on the y-axis. The visualization uses D3 v5’s `scaleTime`, `scaleLinear`, `axisBottom`, `axisLeft`, and `line` with a `curveBasis` curve to render the smooth path. Data is loaded via `csv` from a GitHub gist, with timestamps parsed as dates and temperatures as numbers. The SVG rendering includes styled axis labels, gridlines, and a title, all defined in an external stylesheet.