Perris, CA Noise Levels
Perris, CA: what the federal noise map shows
Perris, CA reads 47.5 dB(A) on BTS's 24-hour average, inside HUD's "Acceptable" noise zone, 65 dB(A) day-night average or below under 24 CFR 51.104, the federal government's own line for building housing with no extra sound attenuation required. Road traffic drives that number here, not the other two sources. That's the reading at Perris's Census-defined center point, not any one street, BTS's map is a live raster, not a per-address service.
Perris's noise, by source
Each of the three transportation modes gets its own model from BTS; the combined figure above is what they add up to.
What this means for a house here
Upgraded windows, door seals and STC-rated glazing meaningfully cut broadband, near-continuous road noise.
Where Perris ranks
Among the 3,622 US places in this dataset with any measurable transportation noise, Perris ranks 1,864, loudest first. About 83,032 people live there, making it the 445th largest place in this dataset.
Your street may differ from Perris's reading
For a single house or lot in Perris rather than the town-wide figure above, BTS's own map is the same free source, queried directly.
More on how this number was built
For exactly which federal dataset feeds Perris's figure, see the methodology guide. Since road traffic is what's driving this reading, the guide to what actually cuts each kind of noise covers the fix that fits.