| ANNUAL RAINFALL - 1997 | |||||||||
| Sl. No. | Month | Pondicherry | Karaikal | Mahe | Yanam | ||||
| Days | Rainfall | Days | Rainfall | Days | Rainfall | Days | Rainfall | ||
| 1 | January | 2 | 12.60 | 3 | 39.00 | 1 | 27.00 | 2 | 14.80 |
| 2 | February | - | - | - | - | - | - | - | - |
| 3 | March | - | - | - | - | 1 | 13.00 | 1 | 12.00 |
| 4 | April | 1 | 19.50 | 2 | 47.90 | - | - | 4 | 21.60 |
| 5 | May | 1 | 8.30 | 1 | 6.20 | 4 | 108.00 | - | - |
| 6 | June | 2 | 51.50 | 1 | 45.50 | 19 | 971.02 | 5 | 61.00 |
| 7 | July | 7 | 142.10 | 2 | 46.90 | 30 | 1455.00 | 11 | 140.20 |
| 8 | August | 7 | 265.00 | 5 | 55.40 | 22 | 714.00 | 4 | 47.20 |
| 9 | September | 4 | 97.30 | 8 | 102.20 | 13 | 232.00 | 14 | 597.40 |
| 10 | October | 15 | 352.50 | 17 | 324.20 | 9 | 153.00 | 5 | 154.90 |
| 11 | November | 19 | 704.20 | 18 | 877.50 | 12 | 273.00 | 7 | 107.40 |
| 12 | December | 12 | 464.60 | 14 | 541.10 | 3 | 18.00 | 3 | 96.20 |
| Total | 70 | 2117.60 | 71 | 2085.90 | 114 | 3964.02 | 56 | 1252.70 | |
| 2118 | 2086 | 3964 | 1253 | ||||||
| REGIONWISE RAINFALL PARTICULARS OF PONDICHERRY REGION FOR THE YEAR 1997-98 | |||||||||
| Sl. No. | Month/ | Pondicherry | Karaikal | Mahe | Yanam | ||||
| Season | Days | Rainfall | Days | Rainfall | Days | Rainfall | Days | Rainfall | |
| 1 | June | 2 | 51.5 | 1 | 45.5 | 19 | 971.02 | 5 | 61 |
| 2 | July | 7 | 142.1 | 2 | 46.9 | 30 | 1455 | 11 | 140.2 |
| 3 | August | 7 | 265 | 5 | 55.4 | 22 | 714 | 4 | 47.2 |
| 4 | September | 4 | 97.3 | 8 | 102.2 | 13 | 232 | 14 | 597.4 |
| South West | 20 | 555.90 | 16 | 250.00 | 84 | 3372.02 | 34 | 845.80 | |
| Monsoon | |||||||||
| 5 | October | 15 | 352.5 | 17 | 324.2 | 9 | 153 | 5 | 154.9 |
| 6 | November | 19 | 704.2 | 18 | 877.5 | 12 | 273 | 7 | 107.4 |
| 7 | December | 12 | 464.6 | 14 | 541.1 | 3 | 18 | 3 | 96.2 |
| North East | 46 | 1521.30 | 49 | 1742.80 | 24 | 444.00 | 15 | 358.50 | |
| Monsoon | |||||||||
| 8 | January | - | - | 1 | 7.7 | - | - | 3 | 66.8 |
| 9 | February | - | - | 1 | 4.2 | - | - | 1 | 26.4 |
| Winter | 0 | 0.00 | 2 | 11.90 | 0 | 0.00 | 4 | 93.20 | |
| Period | |||||||||
| 10 | March | - | - | - | - | - | - | - | - |
| 11 | April | - | - | - | - | - | - | 1 | 15.6 |
| 12 | May | 3 | 135.2 | 4 | 153.4 | 7 | 236 | 1 | 34 |
| Hot Weather | 3 | 135.20 | 4 | 153.40 | 7 | 236.00 | 2 | 49.60 | |
| Period | |||||||||
| Annual | 69 | 2212.40 | 71 | 2158.10 | 115 | 4052.02 | 55 | 1347.10 | |
| Total | |||||||||
| 2212 | 2158 | 4052 | 1347 | ||||||