This chart visualizes a week of temperature data in San Francisco, using a smoothed area chart to show temperature fluctuations over time. The visualization loads data from a CSV file containing timestamps and temperature readings, then renders them as an SVG using D3 v5’s `area` and `curveBasis` functions to create a flowing, filled line. Axes are generated with `axisBottom` and `axisLeft`, with gridlines and custom tick styling applied via CSS. The data is mapped using `scaleTime` for the x-axis and `scaleLinear` for the y-axis, with the area filled in maroon.