| Velachery (R) | ||
| Months | Day | Night |
| Standard Limit in Leq dB(A) | 55 | 45 |
| January | 77 | 76 |
| Febraury | 71 | 69 |
| March | 75 | 74 |
| April | 73 | 73 |
| May | 69 | 68 |
| June | 61 | 59 |
| July | 63 | 61 |
| August | 60 | 51 |
| September | 60 | 52 |
| October | 63 | 62 |
| November | 67 | 66 |
| December | 61 | 60 |
| All Values are measured in Leq dB(A) | ||
| I= Industrial, C= Commercial, R= Residential, S= Silence | ||