Quiet hours in Buffalo, MN — also called the noise ordinance, nighttime noise rules, or residential quiet time — define the hours during which excessive noise is prohibited.
Minnesota's MPCA noise rule (MN Rules 7030.0040) caps residential sound at 60 dBA by day and 50 dBA (L50) overnight. Wright County cities like Buffalo and Monticello add 10 p.m. to 7 a.m. quiet hours; the county handles township nuisance noise.
Two layers govern noise across Wright County. Statewide, the MPCA standard in MN Rules 7030.0040 sets numeric limits at any receiving property: for residential land (NAC-1), L50 60 dBA and L10 65 dBA daytime, dropping to 50 and 55 dBA from 10 p.m. to 7 a.m. On top of that, home-rule cities including Buffalo, Monticello, St. Michael, and Annandale set clock-hour quiet periods, generally 10 p.m. to 7 a.m., in their nuisance codes. In unincorporated townships, Wright County enforces its own nuisance ordinance and MN Stat. 561.01. Police non-emergency lines take complaints; MPCA handles industrial sources.
City noise-ordinance violations are misdemeanors or petty misdemeanors, with fines commonly $100 to $700 and escalating penalties for repeats. Industrial exceedances of the MPCA limits draw MPCA enforcement.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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Side-by-side rule comparisons with other cities in Wright County.
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