Hi George,
The availability of Historical data in CCPulse is dependant on available Historical data in the Data Mart database. CCPulse utilizes a DAP connection to the Data Mart DB to pull Historical data.
If you open the Help in CCPulse and search for Creating Historical Views you'll find a full set of instructions on this topic. You'll also see that you can create a Historical view based on Hourly data.
Hope this helps.
Best regards,
Mike