jQuery 3.2.1, HTML, CSS, JavaScript
This illustrates high ozone days for the 2017 ozone season (April - September) The problem is with the values. April 1 should display 40. The values are offset by 1 day. September 30, as a result, has no value.
An example of a Google Dual-Y Line Chart.
An example of a Google Sankey Chart.
An example of a Google Geo Chart.
jQuery (edge), HTML, CSS, JavaScript
jQuery 1.8.3, HTML, CSS, JavaScript
jQuery 1.11.0, HTML, CSS, JavaScript
No-Library (pure JS), HTML, CSS, JavaScript
An example of a Google Gantt Chart.
Validation
jQuery 2.1.3, HTML, CSS, JavaScript