I currently am using a line chart with chart.js, and have a label set that looks like this [\"January 2015\", \"February 2015\", \"March 2015\", \"April 2015\", \"May
[\"January 2015\", \"February 2015\", \"March 2015\", \"April 2015\", \"May
At Chart Options, under xAxes you can specify the maxTickLimit property to whatever you like:
xAxes: [{ ticks: { autoSkip:true, maxTicksLimit:3 } }]
Fiddle : https://jsfiddle.net/p63z7zys/1/