Most of the housing across this service area dates to 1973 on the median, with a lot of it concentrated in that 1960s-70s band. Openers from that era, or even replacement units installed in the decades since, run drive gears and circuit boards that weren't built for the kind of severe cold this part of North Dakota gets every winter. Lubricant thickens, gear teeth that have already worn down from thirty-plus years of cycling get brittle, and logic boards in older openers don't always handle the swings between a heated garage and a sub-zero night well. On top of the opener's own age, a lot of these houses still carry original chain-drive units that were never upgraded, so you're asking a motor built decades ago to keep doing the same job in weather that stresses metal and electronics harder than a milder climate would. That combination - old opener, old hardware, severe cold - is the main reason opener calls cluster so heavily around this part of the state rather than being spread evenly year-round.