This visualization displays San Francisco temperature data as a line chart over time, using a time-scaled x-axis and linear y-axis with gridlines. The SVG is rendered via D3 v5, using `d3.csv`, `d3.scaleTime`, `d3.scaleLinear`, `d3.axisLeft`, `d3.axisBottom`, and `d3.line` with a basis curve. Data comes from a GitHub-hosted CSV file, and the chart includes labeled axes, a title, and styled tick lines.