| ANNUAL RAINFALL - 1991 | |||||||||
| Sl. No. | Month | Pondicherry | Karaikal | Mahe | Yanam | ||||
| Days | Rainfall | Days | Rainfall | Days | Rainfall | Days | Rainfall | ||
| 1 | January | 2 | 57.80 | 2 | 13.20 | - | - | 1 | 11.20 |
| 2 | February | 1 | 7.80 | - | - | - | - | - | - |
| 3 | March | - | - | - | - | - | - | - | - |
| 4 | April | - | - | - | 2.00 | 5 | 84.00 | - | - |
| 5 | May | - | - | - | - | 10 | 90.00 | - | - |
| 6 | June | 6 | 131.10 | 8 | 299.50 | 28 | 1248.00 | 11 | 227.00 |
| 7 | July | 4 | 36.80 | 3 | 36.60 | 28 | 1047.00 | 6 | 283.90 |
| 8 | August | 7 | 103.80 | 4 | 37.60 | 22 | 394.00 | 8 | 196.60 |
| 9 | September | 6 | 161.20 | 4 | 114.50 | 3 | 76.00 | 6 | 186.00 |
| 10 | October | 11 | 411.80 | 11 | 340.10 | 10 | 201.00 | 10 | 333.60 |
| 11 | November | 14 | 299.00 | 14 | 864.10 | 2 | 68.00 | 10 | 394.70 |
| 12 | December | 2 | 20.00 | 5 | 66.30 | - | - | 1 | 9.40 |
| Total | 53 | 1229.30 | 51 | 1773.90 | 108 | 3208.00 | 53 | 1642.40 | |
| 1229 | 1774 | 3208 | 1642 | ||||||
| REGIONWISE RAINFALL PARTICULARS OF PONDICHERRY REGION FOR THE YEAR 1991-92 | |||||||||
| Sl. No. | Month/ | Pondicherry | Karaikal | Mahe | Yanam | ||||
| Season | Days | Rainfall | Days | Rainfall | Days | Rainfall | Days | Rainfall | |
| 1 | June | 6 | 131.1 | 8 | 299.5 | 28 | 1248 | 11 | 227 |
| 2 | July | 4 | 36.8 | 3 | 36.6 | 28 | 1047 | 6 | 283.9 |
| 3 | August | 7 | 103.8 | 4 | 37.6 | 22 | 394 | 8 | 196.6 |
| 4 | September | 6 | 161.2 | 4 | 114.5 | 3 | 76 | 6 | 186 |
| South West | 23 | 432.90 | 19 | 488.20 | 81 | 2765.00 | 31 | 893.50 | |
| Monsoon | |||||||||
| 5 | October | 11 | 411.8 | 11 | 340.1 | 10 | 201 | 10 | 333.6 |
| 6 | November | 14 | 299 | 14 | 864.1 | 2 | 68 | 10 | 394.7 |
| 7 | December | 2 | 20 | 5 | 66.3 | - | - | 1 | 9.4 |
| North East | 27 | 730.80 | 30 | 1270.50 | 12 | 269.00 | 21 | 737.70 | |
| Monsoon | |||||||||
| 8 | January | 1 | 5.8 | 1 | 4.1 | - | - | - | - |
| 9 | February | - | - | - | - | - | - | - | - |
| Winter | 1 | 5.80 | 1 | 4.10 | 0 | 0.00 | 0 | 0.00 | |
| Period | |||||||||
| 10 | March | - | - | - | - | - | - | - | - |
| 11 | April | - | - | 1 | 9.1 | 3 | 55 | - | - |
| 12 | May | 1 | 20 | 1 | 16.4 | 5 | 140 | 2 | 82 |
| Hot Weather | 1 | 20.00 | 2 | 25.50 | 8 | 195.00 | 2 | 82.00 | |
| Period | |||||||||
| Annual | 52 | 1189.50 | 52 | 1788.30 | 101 | 3229.00 | 54 | 1713.20 | |
| Total | |||||||||
| 1190 | 1788 | 3229 | 1713 | ||||||