This visualization shows a week of temperature data in San Francisco, using a line chart with a filled area beneath the curve. The x-axis represents time, and the y-axis shows temperature, with clear labels for both axes and an overall title. Built with D3 v5, the code uses `csv()` for data loading, `scaleTime()` and `scaleLinear()` for scales, and `areaGenerator` from the `area()` API to define the filled path. Grid lines and tick labels are styled via SVG, while the data comes from an external CSV file.