This visualization displays a time series of San Francisco temperature data, plotting temperature against a time axis as a smooth natural-curve line. The chart employs a time scale on the x-axis and a linear scale on the y-axis, with clear axis labels and tick marks. Built using React and D3 v5 with SVG rendering, the line is generated using `d3.line` with `curveNatural`. The data comes from a CSV file containing weekly temperature readings from the city.