Emergency repair in Clinton, Utah

The station serving Clinton (Ogden Hinckley AP, 7 km out) averages 17.3 freeze–thaw days in December, 17.8 in January and 17.3 in February — January is the peak. Each of those days is a morning cold enough to embrittle a fatigued spring and an afternoon warm enough to reload it.

What to do with the numbers: autumn is when Clinton spring work is cheap and schedulable — the same job in January competes with everyone else's frozen morning.

Three situations justify the night rate: an open door that will not close (security, not convenience), a door hanging wrong above head height (hazard), and a vehicle genuinely required before dawn — though the release cord frees more trapped cars in Clinton than technicians do.

Tomorrow, and $50–150 cheaper: the door is closed with a broken spring (it is not deteriorating), the opener died but the release works, anything cosmetic. And the Clinton winter special — a door frozen to the slab — is a warm-water job, not an emergency call-out: never force it with the opener.

Drive fifteen minutes and the inputs change — Roy runs 84.2 freeze–thaw cycles and 5–7 years of spring life; Clearfield runs 85.1 freeze–thaw cycles and 5–7 years of spring life; and Syracuse runs 85.8 freeze–thaw cycles and 5–7 years of spring life.

This page runs on Clinton's numbers (85 freeze–thaw cycles, 1996 median build, 4,331 ft of elevation) — close to the neighbours', never identical, which is exactly the point of measuring per city.