Because this area sits in a mild band with only occasional freeze, the seasonal shift isn't dramatic, but it's real. Springs tighten slightly in cold air and loosen as temperatures climb back up, which changes how much effort the opener needs to lift the door - a door that closes smoothly in July can feel heavier in January without anything actually being broken.
Lubricant matters more in the cold months. A dry chain or a spring that hasn't been lubricated recently will bind up faster when temperatures drop, even briefly. Weatherstripping is the other piece - it does most of its hardening during the coldest stretch and then relaxes again once the weather warms, so the best time to replace it is right before the cold arrives, not after you've already noticed the draft.
With 54,040 owner-occupied houses in this area and most running on hardware from the 1980s and 90s, a lot of owners are dealing with this same seasonal creak at roughly the same time of year. It's worth a look-over before the coldest stretch rather than waiting for the morning the door won't budge.