How Long Do Power Outages Typically Last? What Our Data Shows

Across 3046 US counties and 2014-2025 of recorded outage events, the national average outage lasts 3.0 hours — most outages are resolved well within a day, but that average hides enormous variation by county and by storm.

Grade F counties (the bottom 20% nationally) see meaningfully longer and more frequent outages than this national average — search your own county on our homepage to see its specific average duration and reliability grade rather than relying on the national figure alone.

The worst individual outages on record run far longer than any average — some multi-day, storm-driven events in our worst-counties data stretch past 100 hours. See "Which US Counties Lose Power Most Often?" for specifics.