The only motor within hearing distance was a quaint old Rototiller owned by a local farmer.When the wind was right, its irregular burping noise would come to their ears faintly, like an uneasy spirit.
They positioned windows to draw on prevailing breezes and dotted clever features like transom windows above interior doors, which could be cranked open to let stuffy air escape while the door stayed shut for privacy.
El Nino sees warm water, collected over several years in the western Pacific, flow back eastwards when winds that normally blow westwards weaken, or sometimes the other way round.
Snow of course, changes when actors or nature interacts with it, so the visual effects team often serves as a guardian of continuity, fixing footsteps or compensating for changing winds.