Amazon CloudWatch Metric Insights available in AWS GovCloud (US) Regions

Metrics Insights is a fast, flexible, SQL-based query engine which enables developers, operators and systems engineers to identify trends and patterns across operational metrics in real time. With Metrics Insights, operators can gain better visibility on their infrastructure and large scale application performance with flexible querying, on-the-fly metric aggregations and dynamic alarms that monitor fast moving environments.

Source:: Amazon AWS