Munford is a small town as these things go - about 2,320 households, not the sprawl you get closer to Bartlett. That matters for opener work because a smaller town means fewer houses built in any one wave, which means the openers failing this month tend to be clustered by age rather than scattered across decades.
Most homes here went up around 1994, squarely in that late-80s-through-90s window that covers the wider service area. That's the era of early chain-drive openers with mechanical limit switches and logic boards that weren't built to last 30 years of Tennessee summers. If your opener is original to the house, it's pushing three decades old, and the circuit board is the first thing to give out - not the motor.
The climate here is the same cold-moderate band as the rest of the area: real winter cold snaps, humid summers. That swing stresses the opener's electronics and the sensor wiring more than the motor itself, especially on units that have never been swapped. A 1994-era opener wasn't built with modern safety sensors at all, so if yours still doesn't have working photo-eyes, that's not a wiring fault - it's the age of the unit.