This line chart visualizes hourly temperature readings in San Francisco over a week, with time on the x-axis and temperature on the y-axis. The chart uses React to render SVG elements, leveraging d3-scale functions like `scaleTime` and `scaleLinear` for axes, and d3-shape’s `line()` with `curveNatural` to draw the smooth temperature curve. Data is loaded as CSV via d3.csv from a GitHub gist, with axis labels and ticks styled in a minimalist theme.