Knightdale sits in a cold-moderate climate band, which means real temperature swings through the year rather than a flat warm or flat cold pattern. That matters for openers more than people expect. Nylon drive gears get brittle in cold snaps and are more likely to strip on a cold morning start than in July. Logic boards and capacitors also age faster with repeated thermal cycling - garages aren't insulated like the house, so the equipment inside takes the full swing.
The other local factor is simply the age curve of the housing stock. A huge share of openers in this area were installed when the houses were built in the mid-2000s, which means a large number of them are reaching board-and-gear failure age at roughly the same time. We're not seeing one-off failures from storm damage or misuse as much as we're seeing units that have simply aged out together.
We don't have weather-event data specific to Knightdale to point to beyond the climate band itself, so we won't claim a particular storm or season caused your failure - just that the age and the swings together wear these units down faster than a mild, steady climate would.