How long does CloudWatch keep metric data by default?

Direct Answer (Verified)Reviewed by Sunny (Senior Cloud Engineer)

Correct Answer: 15 months (with varying retention based on granularity)

CloudWatch maintains metric history for 15 months, though data is aggregated over time (e.g., 1-second data is only kept for 3 hours)....

📋Part of AWS Certified Solutions Architect – Associate (SAA-C03) · AWS Certification Practice
Real Exam ScenarioAmazon CloudWatch

How long does CloudWatch keep metric data by default?

✓ Correct Answer & ExplanationAmazon CloudWatch

Correct Answer

15 months (with varying retention based on granularity)

Why This Answer Is Correct

CloudWatch maintains metric history for 15 months, though data is aggregated over time (e.g., 1-second data is only kept for 3 hours).

📚 What This Question Tests

This question evaluates your knowledge of Amazon CloudWatch — a core concept tested in AWS Certified Solutions Architect – Associate (SAA-C03). Understanding Amazon CloudWatch is essential for designing scalable, secure, and cost-effective cloud architectures. Mastery of this topic will help you answer scenario-based questions confidently on exam day.