This line chart displays temperature readings in San Francisco over time, using a smooth curve to connect daily data points. The visualization includes labeled axes for time and temperature, with a title and grid lines for readability. Built with D3 v5, the code uses `scaleTime`, `scaleLinear`, `line` with `curveBasis`, and `axisBottom`/`axisLeft` to render an SVG. The data is loaded via `csv` from a remote dataset, with timestamps parsed as dates and temperatures converted to numbers for plotting.