Montclair, CA Noise Levels
Is Montclair, CA noisy?
Montclair, CA reads 52.5 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. This describes Montclair as a whole, not a specific block, the underlying BTS map resolves to about 38 meters per pixel, sampled at the town's own center point.
Montclair'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 Montclair ranks
Among the 3,622 US places in this dataset with any measurable transportation noise, Montclair ranks 877, loudest first. Population is about 37,650, 1,107th largest of the 12,137 places covered here.
Your street may differ from Montclair's reading
This page describes Montclair as a whole. If one specific address is what matters, BTS publishes the same underlying map for free.
Behind Montclair's reading
The methodology guide shows exactly how Montclair's reading was built from BTS's tile data. Since road traffic is what's driving this reading, the guide to what actually cuts each kind of noise covers the fix that fits.