Morgantown sits in a severe cold climate band, and that matters for two parts specifically: springs and grease. Steel loses some flexibility as temperatures drop, so a spring that's already near the end of its life is more likely to snap on a cold morning than a mild afternoon - the metal's under the same tension with less give. Standard petroleum-based lubricant on rollers and hinges also thickens in cold weather, which adds resistance right when the spring can least afford it.
Combine that with the age of the housing stock - much of it dating to the 1980s and 90s, with some homes going back to 1938 - and you've got a lot of original hardware that was installed before anyone thought about a 30-plus year service life. A spring system installed in 1987 wasn't designed to last to today; it was designed to last about a decade, maybe two if you got lucky with lubrication and low use.
The pattern we see: openers strain and springs fail more in the first hard cold stretch of the year than any other time, because that's when marginal hardware finally gets pushed past what's left of its tolerance.