This visualization plots the weekly temperature of San Francisco over time, using a scatterplot with circles positioned by a time-scaled x-axis and a linear-scaled y-axis. The React app loads the data with the D3 `csv` and `scaleTime` utilities, while `AxisBottom` and `AxisLeft` render SVG grid lines and tick labels. The circles’ tooltips display the day of the week via a `timeFormat` function. Styling is applied through CSS classes on the SVG marks and axes.