This area chart visualizes a week of temperature data in San Francisco, showing how temperatures fluctuate over time. The visualization uses an SVG rendered with D3 v5, employing `scaleTime`, `scaleLinear`, `area`, and `curveBasis` to create a smooth filled path. Data is loaded from a CSV file and parsed with timestamps and numeric temperature values. The chart includes axis labels, gridlines, and a title, with the area fill and stroke rendered in maroon.