This visualization shows a week of temperature readings in San Francisco, plotted as a smooth line chart with time on the x-axis and temperature in Celsius on the y-axis. The data comes from the Data Canvas - Sense your city dataset. Using D3 v5, the code employs `scaleTime`, `scaleLinear`, `axisBottom`, and `axisLeft` to construct the axes, while a line generator with `curveBasis` creates the curved path. Grid lines and axis labels are styled via SVG elements, with the chart rendered entirely in SVG.