Lynnwood, WA Noise Ordinances: Quiet Hours (2026)
Quiet hours in Lynnwood, WA, also called the noise ordinance, nighttime noise rules, or residential quiet time, define the hours during which excessive noise is prohibited.
Key Facts
- Quiet hours
- 10:00 p.m. to 7:00 a.m.
- Nighttime reduction
- 10 dBA lower, Class A property
- Yelling/shouting rule
- LMC 10.12.300(B)(7)
- Brief-spike allowance
- Up to 15 dBA for 90 seconds/hour
- Penalty
- Misdemeanor, LMC 10.12.800
Summary
Lynnwood, Washington enforces a 10:00 p.m. to 7:00 a.m. noise curfew: LMC 10.12.300(B)(7) bans yelling, shouting or singing that disturbs residents during those hours, and LMC 10.12.500(B)(1) automatically cuts the citywide maximum permissible noise level by 10 dBA overnight for residential (Class A) receiving property.
7. Yelling, shouting, hooting, whistling or singing, particularly between the hours of 10:00 p.m. and 7:00 a.m. or at any time and place so as to disturb the quiet, comfort and repose of any person in any hospital, rest home, sanitarium, dwelling, hotel, motel or other type of residence; ... 1. Between the hours of 10:00 p.m. and 7:00 a.m. the noise limitations of the foregoing table shall be reduced by 10 dBA for receiving property within Class A EDNAs;
Official source re-checked September 8, 2026: no newer edition of the code had been published (publisher’s edition: current through Ordinance 3512, passed May 26, 2026).
Full Breakdown
Lynnwood layers two mechanisms into its nighttime quiet hours. window: subsection (B)(7) bars yelling, shouting, hooting, whistling or singing, particularly during those hours, so as to disturb the quiet, comfort and repose of anyone in a hospital, rest home, dwelling, hotel, motel or other residence; (B)(5) restricts heavy-vehicle idling near residential zones to the same hours; and (B)(10) restricts outdoor power tools, saws and blowers to the same window. , the maximum permissible noise level in the chapter's table is reduced by 10 dBA for any receiving property within a Class A (residential) EDNA.
500(B)(2), which permits exceeding the applicable limit by 5 dBA for up to 15 minutes, 10 dBA for up to five minutes, or 15 dBA for up to one and one-half minutes in any hour. 700(B). 800.
Violations & Fines
Making noise that violates the 10:00 p.m. to 7:00 a.m. prohibitions in LMC 10.12.300(B), or exceeding the nighttime-reduced maximum permissible noise level in LMC 10.12.500(B)(1), is a misdemeanor under LMC 10.12.800, enforced by the Lynnwood Police Department or the development and business services department under LMC 10.12.700.
Frequently Asked Questions
What are Lynnwood's official quiet hours?
Is any nighttime noise allowed at all in Lynnwood?
What's the penalty for violating Lynnwood's quiet hours?
Sources & Official References
Other rules in Lynnwood
How Lynnwood compares: Cities with the Strictest Noise Ordinances·Compare Lynnwood to another location·View the Washington noise ordinances overview
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Quiet Hours in Nearby Cities
How other cities in Snohomish County handle quiet hours.