AC & heating repair in New Harmony, UT: we connect you with top-rated local HVAC pros, checked by our team — their proposals come straight to your Homeshi account. Free for property owners.
In New Harmony, July highs average about 92°F and January lows about 28°F.
In Washington County, July highs average about 92°F and January lows about 28°F, with roughly 15 inches of rain a year.
Over the last 10 years the National Weather Service recorded flash floods, damaging thunderstorm winds and floods in Washington County, with hail up to 1 inches across. After a storm, a quick roof and gutter check catches damage before it turns into a leak.
The typical home in Washington County was built around 2004, about 22 years ago, and 11% were built before 1980.
Washington County has had 12 federal disaster declarations in the last 25 years, most often for wildfires; the latest was Forsyth Fire (2025).
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Book the AC tune-up in spring and the heating check in fall, before the first real heat or cold — repair slots fill fast in a heat wave.
Central AC units usually last 12–15 years and furnaces 15–20; past that, a repair often costs more than it saves.
If the system is over 12–15 years old or needs a major part (compressor, heat exchanger), ask for both prices — the pro sends them on Homeshi so you can compare.
These are Washington County figures — more about homes in St. George.
Kanarraville · Toquerville · Leeds · La Verkin · Cedar City · Virgin · Hurricane · Enoch