This line chart displays one week of temperature in degrees Celsius in San Francisco, using data from Data Canvas - Sense Your City. It plots temperature against time, with timestamps parsed as JavaScript Date objects and temperature values converted to numbers. The visualization renders as an SVG using d3.v4’s selection, scaleTime, scaleLinear, axisLeft, axisBottom, line, and curveBasis functions, with axis labels and a title. The line path is styled with a maroon stroke, and the data is loaded asynchronously via d3.csv.