Emergency repair in Millcreek, Utah

The station serving Millcreek (Salt Lake City Intl AP, 15 km out) averages 17.4 freeze–thaw days in December, 18.0 in January and 16.7 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 Millcreek spring work is cheap and schedulable — the same job in January competes with everyone else's frozen morning.

Pay for tonight when the Millcreek garage cannot be secured — a door stuck open is an open house — or when the door hangs crooked or off-track overhead, or when a trapped car is truly needed before morning. On that last one, pull the red release first: disconnected, many doors lift by hand and the emergency evaporates.

The morning slot covers the rest at $50–150 less. A broken spring behind a closed door is going nowhere; a dead opener with the release pulled is a door you can operate by hand; dents wait indefinitely. In Millcreek winters, add the frozen-down door to this list: warm water frees the seal, and driving the opener against ice is how bottom sections get bent.

For context around Millcreek: Holladay runs 89.4 freeze–thaw cycles and 5–7 years of spring life; Murray runs 85.9 freeze–thaw cycles and 5–7 years of spring life; and South Salt Lake runs 83.2 freeze–thaw cycles and 5–7 years of spring life.

Against that backdrop, Millcreek holds 88.2 cycles at 4,397 ft with a 1965 median build year — the specific inputs behind every figure above.