This radial chart displays monthly temperature anomalies for Massachusetts from 1895 onward, with a slider to select a specific year. Each point represents a month’s deviation from the historical average, colored along a blue-to-red diverging scale. The chart uses a D3 v7 radial line generator (`d3.lineRadial`) with a time scale for angles and a linear scale for radii, rendered as SVG. Data comes from a local CSV parsed with `d3.csv` and `d3.timeParse`.