This area chart visualizes one week of temperature data in San Francisco, sourced from Data Canvas - Sense Your City. The chart displays temperature in degrees Celsius over time, with a maroon-filled area beneath a line path. The code uses D3 v5's `area` generator with `curveBasis` for smooth rendering, alongside `scaleTime`, `scaleLinear`, `axisLeft`, and `axisBottom` for axes. SVG output is styled with CSS, including large tick labels and an axis label rotated -90 degrees. Data is loaded as CSV and parsed into timestamps and numeric temperatures before rendering.