SCOM Reporting - How To get Performance counters by Day instead of Hour

To get Performance counters by Day instead of Hour:

SELECT FullName, InstanceName, DateTime, AverageValue, MaxValue, MinValue
FROM OperationsManagerDW.dbo.vManagedEntity,
OperationsManagerDW.dbo.vPerformanceRule,
OperationsManagerDW.dbo.vPerformanceRuleInstance,
OperationsManagerDW.Perf.vPerfDaily
WHERE vPerfDaily.ManagedEntityRowId = vManagedEntity.ManagedEntityRowId
AND vPerfDaily.PerformanceRuleInstanceRowId = vPerformanceRuleInstance.PerformanceRuleInstanceRowId
AND vPerformanceRuleInstance.RuleRowId = vPerformanceRule.RuleRowId
AND vPerformanceRule.ObjectName = 'Processor'
AND vPerformanceRule.CounterName = '% Processor Time'
AND DateTime > '2013-06-01'
AND DateTime < '2013-07-01'
ORDER BY FullName, InstanceName, DateTime