| ANNUAL RAINFALL - 1987 | |||||||||
| Sl. No. | Month | Pondicherry | Karaikal | Mahe | Yanam | ||||
| Days | Rainfall | Days | Rainfall | Days | Rainfall | Days | Rainfall | ||
| 1 | January | 1 | 6.20 | 1 | 22.90 | - | - | 1 | 24.60 |
| 2 | February | - | - | - | - | - | - | - | - |
| 3 | March | 1 | 45.00 | 1 | 32.90 | - | - | - | - |
| 4 | April | - | - | - | - | - | - | 1 | 49.00 |
| 5 | May | - | - | 2 | 41.60 | 5 | 45.00 | 1 | 32.00 |
| 6 | June | 6 | 64.40 | 4 | 23.60 | 23 | 601.00 | 3 | 56.20 |
| 7 | July | - | - | 2 | 18.70 | 18 | 226.00 | 8 | 93.00 |
| 8 | August | 4 | 35.80 | 6 | 81.90 | 22 | 383.00 | 10 | 144.20 |
| 9 | September | 7 | 165.40 | 6 | 43.10 | 7 | 182.00 | 7 | 124.80 |
| 10 | October | 14 | 252.80 | 13 | 444.90 | 14 | 279.00 | 10 | 329.20 |
| 11 | November | 4 | 208.20 | 8 | 227.80 | 10 | 155.00 | 9 | 188.70 |
| 12 | December | 10 | 378.20 | 10 | 441.30 | 6 | 106.00 | 2 | 45.60 |
| Total | 47 | 1156.00 | 53 | 1378.70 | 105 | 1977.00 | 52 | 1087.30 | |
| 1156 | 1379 | 1977 | 1087 | ||||||
| REGIONWISE RAINFALL PARTICULARS OF PONDICHERRY REGION FOR THE YEAR 1987-88 | |||||||||
| Sl. No. | Month/ | Pondicherry | Karaikal | Mahe | Yanam | ||||
| Season | Days | Rainfall | Days | Rainfall | Days | Rainfall | Days | Rainfall | |
| 1 | June | 6 | 64.4 | 4 | 23.6 | 23 | 601 | 3 | 56.2 |
| 2 | July | - | - | 2 | 18.7 | 18 | 226 | 8 | 93 |
| 3 | August | 4 | 35.8 | 6 | 81.9 | 22 | 383 | 10 | 144.2 |
| 4 | September | 7 | 165.4 | 6 | 43.1 | 7 | 182 | 7 | 124.8 |
| South West | 17 | 265.60 | 18 | 167.30 | 70 | 1392.00 | 28 | 418.20 | |
| Monsoon | |||||||||
| 5 | October | 14 | 252.8 | 13 | 444.9 | 14 | 279 | 10 | 329.2 |
| 6 | November | 4 | 208.2 | 8 | 227.8 | 10 | 155 | 9 | 188.7 |
| 7 | December | 10 | 378.2 | 10 | 441.3 | 6 | 106 | 2 | 45.6 |
| North East | 28 | 839.20 | 31 | 1114.00 | 30 | 540.00 | 21 | 563.50 | |
| Monsoon | |||||||||
| 8 | January | 1 | 32 | - | - | - | - | - | - |
| 9 | February | - | - | - | - | - | 2 | - | - |
| Winter | 1 | 32.00 | 0 | 0.00 | 0 | 2.00 | 0 | 0.00 | |
| Period | |||||||||
| 10 | March | 1 | 6.8 | 3 | 87.5 | - | 2 | - | - |
| 11 | April | 1 | 21 | 5 | 56.6 | 7 | 74 | 1 | 14.8 |
| 12 | May | 1 | 58 | - | 0.2 | 8 | 274 | 2 | 29.4 |
| Hot Weather | 3 | 85.80 | 8 | 144.30 | 15 | 350.00 | 3 | 44.20 | |
| Period | |||||||||
| Annual | 49 | 1222.60 | 57 | 1425.60 | 115 | 2284.00 | 52 | 1025.90 | |
| Total | |||||||||
| 1223 | 1426 | 2284 | 1026 | ||||||