This responsive line chart visualizes averaged temperature and relative humidity data from HMP155A sensors, with dew point values derived from these readings. The chart presents the time series alongside its supporting text. Built with d3.v7, the visualization uses `d3.selectAll` and `d3.join` to render an SVG area, with `d3.scaleTime` and `d3.scaleLinear` mapping the axes. Averages are computed from the CSV data using the Papa Parse library, which handles file parsing and dynamic typing before the data is passed to the plot. Source text originates from Campbell Scientific documentation.