| Tahun Data | : | 1999 |
| Nama Stasiun | : | TRMM-0339 |
| Lokasi Stasiun | : | Desa Kelurahan Pardomuan, Kecamatan Angkola Selatan, Tapanuli Selatan, Provinsi Sumatera Utara |
| Longitude | : | 99.125000 |
| Latitude | : | 1.125000 |
| Tanggal | Jan | Feb | Mar | Apr | Mei | Jun | Jul | Agu | Sep | Okt | Nov | Des |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 42.674 | 0.000 | 9.768 | 0.000 | 2.511 | 0.000 | 0.000 | 0.000 | 2.868 | 5.034 | 4.918 | 0.000 |
| 2 | 10.191 | 0.000 | 0.000 | 4.258 | 0.000 | 0.000 | 4.007 | 0.000 | 8.091 | 24.820 | 0.000 | 0.876 |
| 3 | 6.497 | 5.820 | 16.718 | 0.000 | 11.334 | 0.000 | 0.000 | 28.185 | 30.416 | 1.296 | 0.000 | 53.123 |
| 4 | 25.661 | 0.000 | 0.000 | 9.429 | 14.811 | 0.408 | 6.884 | 10.698 | 56.042 | 43.609 | 3.290 | 0.000 |
| 5 | 0.000 | 37.939 | 13.559 | 22.280 | 7.491 | 2.805 | 0.000 | 4.497 | 0.000 | 0.000 | 0.000 | 55.752 |
| 6 | 0.000 | 6.883 | 0.000 | 6.007 | 0.644 | 0.000 | 9.453 | 23.799 | 0.000 | 66.485 | 2.866 | 2.230 |
| 7 | 0.447 | 14.657 | 0.000 | 24.713 | 11.355 | 1.352 | 0.000 | 2.374 | 0.000 | 0.997 | 0.000 | 15.372 |
| 8 | 1.381 | 8.200 | 13.364 | 0.000 | 1.245 | 23.717 | 11.610 | 0.000 | 13.720 | 5.582 | 0.000 | 0.000 |
| 9 | 2.923 | 7.307 | 6.852 | 6.691 | 4.229 | 7.370 | 10.532 | 0.223 | 0.000 | 2.293 | 0.000 | 3.265 |
| 10 | 0.000 | 15.295 | 16.620 | 0.000 | 9.037 | 0.179 | 2.466 | 0.307 | 1.705 | 1.545 | 4.458 | 0.000 |
| 11 | 38.451 | 0.000 | 0.000 | 1.065 | 1.760 | 2.448 | 3.853 | 19.134 | 3.572 | 13.506 | 18.080 | 0.000 |
| 12 | 3.045 | 5.013 | 17.106 | 0.000 | 1.803 | 0.230 | 0.000 | 8.492 | 0.000 | 6.778 | 31.348 | 4.142 |
| 13 | 15.145 | 51.279 | 9.865 | 0.000 | 0.000 | 3.545 | 22.553 | 3.911 | 0.000 | 13.755 | 9.871 | 11.549 |
| 14 | 18.190 | 1.912 | 15.843 | 6.996 | 1.245 | 7.855 | 15.566 | 0.168 | 24.219 | 91.653 | 27.633 | 0.000 |
| 15 | 24.809 | 4.291 | 0.486 | 0.000 | 29.579 | 1.964 | 0.000 | 3.101 | 10.635 | 46.798 | 6.086 | 0.000 |
| 16 | 0.000 | 61.391 | 2.430 | 0.228 | 8.393 | 13.134 | 0.000 | 1.844 | 5.710 | 13.257 | 0.177 | 8.442 |
| 17 | 1.787 | 7.647 | 22.306 | 32.317 | 0.000 | 0.000 | 28.255 | 0.000 | 14.153 | 0.000 | 0.000 | 52.406 |
| 18 | 2.599 | 10.069 | 1.264 | 0.000 | 4.851 | 15.633 | 0.000 | 0.000 | 0.000 | 1.346 | 2.689 | 25.964 |
| 19 | 0.000 | 5.396 | 10.157 | 0.000 | 6.160 | 0.000 | 0.000 | 12.766 | 36.153 | 40.618 | 11.181 | 0.000 |
| 20 | 45.760 | 0.000 | 0.000 | 5.095 | 0.000 | 0.510 | 0.000 | 26.006 | 17.292 | 4.834 | 34.497 | 29.230 |
| 21 | 4.669 | 0.000 | 10.789 | 0.000 | 0.000 | 0.434 | 0.000 | 28.855 | 2.977 | 3.588 | 4.918 | 0.000 |
| 22 | 4.020 | 0.000 | 2.187 | 5.095 | 1.116 | 13.287 | 0.000 | 0.000 | 0.000 | 1.047 | 1.734 | 8.203 |
| 23 | 13.358 | 1.020 | 5.929 | 0.000 | 4.186 | 0.051 | 0.000 | 11.173 | 29.929 | 1.196 | 0.177 | 9.478 |
| 24 | 0.000 | 18.353 | 0.000 | 2.433 | 5.624 | 13.593 | 1.849 | 9.274 | 2.977 | 0.000 | 26.536 | 0.000 |
| 25 | 7.755 | 48.390 | 0.000 | 0.000 | 0.365 | 1.326 | 0.000 | 30.140 | 18.374 | 1.844 | 10.013 | 0.000 |
| 26 | 0.000 | 12.023 | 4.325 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 18.049 | 5.233 | 11.570 | 0.000 |
| 27 | 0.000 | 0.000 | 42.717 | 0.608 | 0.000 | 0.000 | 0.000 | 1.006 | 75.850 | 56.517 | 6.121 | 0.000 |
| 28 | 0.000 | 0.127 | 0.000 | 0.000 | 0.000 | 2.882 | 0.000 | 23.017 | 17.779 | 50.138 | 13.410 | 0.000 |
| 29 | 0.000 | - | 4.714 | 0.000 | 0.000 | 7.880 | 0.000 | 0.000 | 28.278 | 0.947 | 4.918 | 0.000 |
| 30 | 0.000 | - | 0.000 | 0.228 | 0.000 | 0.026 | 2.055 | 0.000 | 3.031 | 0.000 | 66.476 | 0.000 |
| 31 | 0.000 | - | 5.200 | - | 0.000 | - | 0.000 | 9.665 | - | 0.000 | - | 6.531 |
| Total | 269.36 | 323.01 | 232.20 | 127.44 | 127.74 | 120.63 | 119.08 | 258.64 | 421.82 | 504.72 | 302.97 | 286.56 |
| Hari Hujan | 19.00 | 20.00 | 21.00 | 15.00 | 20.00 | 22.00 | 12.00 | 22.00 | 22.00 | 26.00 | 23.00 | 15.00 |
| Max | 45.760 | 61.391 | 42.717 | 32.317 | 29.579 | 23.717 | 28.255 | 30.140 | 75.850 | 91.653 | 66.476 | 55.752 |
| Avg | 8.69 | 11.54 | 7.49 | 4.25 | 4.12 | 4.02 | 3.84 | 8.34 | 14.06 | 16.28 | 10.10 | 9.24 |
Berdasarkan data hujan TRMM di Grid TRMM-0339, yang terletak di Desa Kelurahan Pardomuan, Kecamatan Angkola Selatan, Tapanuli Selatan, Provinsi Sumatera Utara, curah hujan tahunan yang terjadi pada tahun 1999 adalah sebesar 3,094.17 mm. Dengan jumlah hari hujan tahunan adalah 237 hari (64.93%). Curah hujan harian maksimum tahunan yang tercatat adalah sebesar 91.65 mm yang terjadi pada tanggal 14 Oktober 1999.
