This is highly variable. When I lived in rural Alabama, power outages sometimes would happen after strong thunderstorms but that was about it. More recently I lived in downtown Atlanta and power outages were pretty much a monthly occurrence. This was just down the street from the power company's headquarters and next to tourist attractions like the World of Coca-Cola and CNN. It still amazes me how fragile the power grid is in the central business district of a major city. How rural Alabama keeps power on better than the middle of a metro of nearly six million is a mystery.

Maybe you're right. I'm trying to find hard facts on this, but it looks like not much data is submitted:

https://www.eia.gov/todayinenergy/detail.php?id=27892

I've experienced quite a number when I've been there, and it's possible that I've been very unlucky.

I know in New Jersey people often lose power after big storms knock trees over power lines. Everyone has a generator. I once lacked power for a week.