Lehi, UT Noise Ordinances: Quiet Hours (2026)
Quiet hours in Lehi, UT, also called the noise ordinance, nighttime noise rules, or residential quiet time, define the hours during which excessive noise is prohibited.
Key Facts
- Day window
- 7:00 a.m. to 10:00 p.m.
- Night window
- 10:00 p.m. to 7:00 a.m.
- Residential night dBA (continuous)
- 55 dBA
- Residential day dBA (continuous)
- 65 dBA
- Penalty
- Class C misdemeanor
Summary
Lehi's noise code splits every day into a daytime window, 7:00 a.m. to 10:00 p.m., and a night window, 10:00 p.m. to 7:00 a.m. Every decibel table in the noise chapter drops sharply for the night window, effectively creating the city's noise curfew.
DAY: From seven o’clock (7:00) A.M. to ten o’clock (10:00) P.M. ... NIGHT: ... From ten o’clock (10:00) P.M. to seven o’clock (7:00) A.M.
Full Breakdown
M. Those two clock windows are the backbone of the city's entire noise chapter: every dBA table in § 5-3-6 lists a lower ceiling for 'Night' than for 'Day' in every zone. , and the narrower 'continuous noises' table drops from 65 dBA to 55 dBA over the same window. The definitions section also distinguishes an 'intermittent noise' (an on-cycle of 10 percent or less lasting up to six minutes, like a passing car) from an 'impulse noise' (an on-cycle of 10 percent or less lasting up to two seconds, like a gunshot), because each carries its own night-versus-day table.
A noise source measured across more than one zone is judged against whichever zone's limit is most restrictive, so a residence bordering a commercial parcel gets the benefit of the tighter residential night ceiling. This definitions section traces to the 1984 Code and was carried forward through the chapter's February 2026 amendment.
Violations & Fines
Sound that exceeds the applicable night-window dBA limit is a class C misdemeanor under § 5-3-8, subject to the penalty schedule in § 1-4-1, with every additional day of violation charged separately. The responsible party can be the person making the noise, a business operating the equipment, or a property owner who allows it to continue, per § 5-3-7A.
Frequently Asked Questions
What hours count as 'night' under Lehi's noise ordinance?
Are Lehi's noise limits actually lower at night?
Does Lehi's quiet-hours rule apply the same way in every zone?
Sources & Official References
Other rules in Lehi
How Lehi compares: Cities with the Strictest Noise Ordinances·Compare Lehi to another location·View the Utah noise ordinances overview
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Quiet Hours in Nearby Cities
How other cities in Utah County handle quiet hours.