This is known as a range area chart and Kendo UI doesn't currently support it. I can't think of an easy workaround to implement it either.
Please, file a request for this feature on our UserVoice portal
if you have minute.
This will help us gauge the overall interest and prioritize.
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Feedback Portal
and vote to affect the priority of the items