This interactive line chart depicts daily temperature fluctuations in San Francisco, with time plotted on the x-axis and temperature on the y-axis. The visualization uses D3 v5's `scaleTime` and `scaleLinear` for axis scaling, along with `line` and `curveBasis` to render a smooth, steel-blue path. The SVG is generated programmatically, and the data is loaded from a CSV file containing timestamp and temperature values. Grid lines and labeled axes, created via `axisBottom` and `axisLeft`, provide context for reading the trend.