Temperature in San Francisco Line Chart
This visualization displays a year of temperature and humidity data for San Francisco using two side-by-side line charts. The left chart plots temperature over time, while the right chart plots humidity, both using a shared time axis. The code uses D3 v5 with SVG rendering, employing `d3.scaleTime`, `d3.scaleLinear`, `d3.line`, and `d3.axisBottom`/`d3.axisLeft`. Data comes from the 2015 Sense Your City project, and both charts share the same timestamp domain.