| ANNUAL RAINFALL - 1980 | |||||||||
| Sl. No. | Month | Pondicherry | Karaikal | Mahe | Yanam | ||||
| Days | Rainfall | Days | Rainfall | Days | Rainfall | Days | Rainfall | ||
| 1 | January | - | - | - | - | - | - | - | - |
| 2 | February | - | - | 1 | 4.20 | - | - | - | - |
| 3 | March | - | - | - | - | - | - | - | - |
| 4 | April | - | 0.50 | 1 | 5.20 | 8 | 158.40 | - | - |
| 5 | May | 2 | 7.20 | 1 | 32.00 | 6 | 47.30 | - | - |
| 6 | June | 1 | 13.20 | 3 | 45.10 | 28 | 1322.10 | 14 | 304.70 |
| 7 | July | 8 | 124.60 | 5 | 68.00 | 29 | 849.40 | 6 | 85.20 |
| 8 | August | 5 | 72.60 | 1 | 28.00 | 27 | 724.50 | 10 | 173.30 |
| 9 | September | 3 | 91.80 | 6 | 49.30 | 10 | 126.40 | 5 | 66.40 |
| 10 | October | 6 | 137.70 | 7 | 174.50 | 6 | 183.10 | 4 | 296.10 |
| 11 | November | 11 | 281.80 | 13 | 320.00 | 6 | 69.20 | 3 | 301.40 |
| 12 | December | 3 | 69.50 | 6 | 131.00 | 1 | 12.00 | - | - |
| Total | 39 | 798.90 | 44 | 857.30 | 121 | 3492.40 | 42 | 1227.10 | |
| 799 | 857 | 3492 | 1227 | ||||||
| REGIONWISE RAINFALL PARTICULARS OF PONDICHERRY REGION FOR THE YEAR 1980-81 | |||||||||
| Sl. No. | Month/ | Pondicherry | Karaikal | Mahe | Yanam | ||||
| Season | Days | Rainfall | Days | Rainfall | Days | Rainfall | Days | Rainfall | |
| 1 | June | 1 | 13.2 | 3 | 45.1 | 28 | 1322.1 | 14 | 304.7 |
| 2 | July | 8 | 124.6 | 5 | 68 | 29 | 849.4 | 6 | 85.2 |
| 3 | August | 5 | 72.6 | 1 | 28 | 27 | 724.5 | 10 | 173.3 |
| 4 | September | 3 | 91.8 | 6 | 49.3 | 10 | 126.4 | 5 | 66.4 |
| South West | 17 | 302.20 | 15 | 190.40 | 94 | 3022.40 | 35 | 629.60 | |
| Monsoon | |||||||||
| 5 | October | 6 | 137.7 | 7 | 174.5 | 6 | 183.1 | 4 | 296.1 |
| 6 | November | 11 | 281.8 | 13 | 320 | 6 | 69.2 | 3 | 301.4 |
| 7 | December | 3 | 69.5 | 6 | 131 | 1 | 12 | - | - |
| North East | 20 | 489.00 | 26 | 625.50 | 13 | 264.30 | 7 | 597.50 | |
| Monsoon | |||||||||
| 8 | January | 1 | 4.6 | 4 | 69 | - | - | 4 | 63 |
| 9 | February | - | - | - | - | - | - | - | - |
| Winter | 1 | 4.60 | 4 | 69.00 | 0 | 0.00 | 4 | 63.00 | |
| Period | |||||||||
| 10 | March | - | - | - | - | 1 | 4 | - | - |
| 11 | April | - | - | - | - | - | - | 1 | 18.4 |
| 12 | May | 2 | 120.4 | 1 | 39.5 | 7 | 192.5 | 2 | 29.1 |
| Hot Weather | 2 | 120.40 | 1 | 39.50 | 8 | 196.50 | 3 | 47.50 | |
| Period | |||||||||
| Annual | 40 | 916.20 | 46 | 924.40 | 115 | 3483.20 | 49 | 1337.60 | |
| Total | |||||||||
| 916 | 924 | 3483 | 1338 | ||||||