A range chart displays data as a filled band between low and high values. The range spline area variant connects data points with smooth curves, producing a visually fluid representation of value ranges over time.
This range spline area chart shows monthly temperature dispersion in New York during 2010. The filled area spans from the lowest to the highest recorded temperature each month in °F. Smooth spline curves form both boundaries, and circle markers highlight the upper border points. Hovering a point reveals a tooltip with the month and both extreme temperature values.
Follow the step-by-step Range Chart Tutorial to learn how such charts are built. See the Range Chart documentation for all configuration options.