| Tahun Data | : | 1998 |
| Nama Stasiun | : | TRMM-0340 |
| Lokasi Stasiun | : | Desa Sayur Matinggi, Kecamatan Sayur Matinggi, Tapanuli Selatan, Provinsi Sumatera Utara |
| Longitude | : | 99.375000 |
| Latitude | : | 1.125000 |
| Tanggal | Jan | Feb | Mar | Apr | Mei | Jun | Jul | Agu | Sep | Okt | Nov | Des |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 9.695 | 0.000 | 0.000 | 6.956 | 0.000 | 16.715 | 0.000 | 15.069 | 5.199 | 0.645 | 30.645 | 0.000 |
| 2 | 17.597 | 11.054 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 4.404 | 3.972 | 0.000 | 0.000 | 52.174 |
| 3 | 10.165 | 1.747 | 0.000 | 13.946 | 0.000 | 0.335 | 0.000 | 8.722 | 11.518 | 0.000 | 1.258 | 0.000 |
| 4 | 12.087 | 23.317 | 4.431 | 0.000 | 0.000 | 10.172 | 1.176 | 15.587 | 0.000 | 41.866 | 26.505 | 38.332 |
| 5 | 6.150 | 11.995 | 0.000 | 0.000 | 2.331 | 1.828 | 21.936 | 6.606 | 31.700 | 2.697 | 0.934 | 75.852 |
| 6 | 0.000 | 0.000 | 0.000 | 8.637 | 7.870 | 0.000 | 3.577 | 28.885 | 7.385 | 0.000 | 27.114 | 28.546 |
| 7 | 0.000 | 0.538 | 0.911 | 40.226 | 4.904 | 2.330 | 0.000 | 0.000 | 26.021 | 31.077 | 0.000 | 44.365 |
| 8 | 3.887 | 0.000 | 1.685 | 0.000 | 13.227 | 0.851 | 0.000 | 30.137 | 3.546 | 0.000 | 0.000 | 0.000 |
| 9 | 4.058 | 0.000 | 8.984 | 0.000 | 0.938 | 0.000 | 0.000 | 8.722 | 0.000 | 0.000 | 0.000 | 2.383 |
| 10 | 12.600 | 0.000 | 0.639 | 0.000 | 0.696 | 0.000 | 3.452 | 0.000 | 0.000 | 32.953 | 4.303 | 16.174 |
| 11 | 0.000 | 0.000 | 0.000 | 35.958 | 10.140 | 0.000 | 8.754 | 0.000 | 10.371 | 0.000 | 0.000 | 56.129 |
| 12 | 7.731 | 0.000 | 4.349 | 2.218 | 47.340 | 0.405 | 8.129 | 12.219 | 16.636 | 3.870 | 0.000 | 17.746 |
| 13 | 2.050 | 0.000 | 4.268 | 0.000 | 5.388 | 0.000 | 0.000 | 0.000 | 1.120 | 10.613 | 0.000 | 1.014 |
| 14 | 0.000 | 0.000 | 1.712 | 1.479 | 4.147 | 0.000 | 2.701 | 4.879 | 25.381 | 0.352 | 2.598 | 0.000 |
| 15 | 0.000 | 41.628 | 5.450 | 0.000 | 0.000 | 0.000 | 10.455 | 29.533 | 12.317 | 0.000 | 9.254 | 4.563 |
| 16 | 109.852 | 0.000 | 2.066 | 4.167 | 5.630 | 0.349 | 10.305 | 3.152 | 0.267 | 0.000 | 0.000 | 3.346 |
| 17 | 12.130 | 0.302 | 0.544 | 0.470 | 0.000 | 0.000 | 11.731 | 17.961 | 0.000 | 1.466 | 1.786 | 4.360 |
| 18 | 0.000 | 13.507 | 1.006 | 2.756 | 7.204 | 0.000 | 18.384 | 136.050 | 1.120 | 1.583 | 1.502 | 2.282 |
| 19 | 0.000 | 0.000 | 0.775 | 0.000 | 0.000 | 0.167 | 8.279 | 0.216 | 0.000 | 0.000 | 6.860 | 16.783 |
| 20 | 0.000 | 6.048 | 6.225 | 0.000 | 0.000 | 0.935 | 4.852 | 14.464 | 0.000 | 0.000 | 0.000 | 0.000 |
| 21 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 4.352 | 0.000 | 15.437 | 17.708 | 1.664 | 0.000 |
| 22 | 0.000 | 49.255 | 18.062 | 0.000 | 0.000 | 0.000 | 0.000 | 14.551 | 11.064 | 0.000 | 2.476 | 20.839 |
| 23 | 0.000 | 3.225 | 0.598 | 1.311 | 3.511 | 1.702 | 1.876 | 3.497 | 13.944 | 18.998 | 0.000 | 4.614 |
| 24 | 12.856 | 0.000 | 0.000 | 14.484 | 3.420 | 0.907 | 40.545 | 18.393 | 0.000 | 15.832 | 0.000 | 14.349 |
| 25 | 0.000 | 0.000 | 0.000 | 1.479 | 0.000 | 0.000 | 16.733 | 30.785 | 1.120 | 14.893 | 0.000 | 66.878 |
| 26 | 0.000 | 6.048 | 0.000 | 0.000 | 0.000 | 0.167 | 0.000 | 12.694 | 0.000 | 17.884 | 0.000 | 0.000 |
| 27 | 0.000 | 0.000 | 2.745 | 0.000 | 2.361 | 0.000 | 1.151 | 0.000 | 0.000 | 1.642 | 0.000 | 38.991 |
| 28 | 24.687 | 0.000 | 3.805 | 19.794 | 0.000 | 0.000 | 4.102 | 27.590 | 0.000 | 5.864 | 0.000 | 27.481 |
| 29 | 0.726 | - | 0.000 | 0.000 | 0.000 | 0.837 | 8.504 | 15.544 | 0.000 | 12.255 | 51.793 | 0.000 |
| 30 | 0.000 | - | 9.038 | 0.000 | 0.000 | 0.000 | 0.225 | 0.734 | 0.176 | 16.887 | 59.594 | 31.233 |
| 31 | 0.000 | - | 3.275 | - | 0.000 | - | 1.770 | 7.383 | - | 2.697 | - | 5.375 |
| Total | 246.27 | 168.66 | 80.57 | 153.88 | 119.11 | 37.70 | 192.99 | 467.78 | 198.29 | 251.78 | 228.29 | 573.81 |
| Hari Hujan | 15.00 | 12.00 | 20.00 | 14.00 | 15.00 | 14.00 | 22.00 | 25.00 | 19.00 | 20.00 | 15.00 | 23.00 |
| Max | 109.852 | 49.255 | 18.062 | 40.226 | 47.340 | 16.715 | 40.545 | 136.050 | 31.700 | 41.866 | 59.594 | 75.852 |
| Avg | 7.94 | 6.02 | 2.60 | 5.13 | 3.84 | 1.26 | 6.23 | 15.09 | 6.61 | 8.12 | 7.61 | 18.51 |
Berdasarkan data hujan TRMM di Grid TRMM-0340, yang terletak di Desa Sayur Matinggi, Kecamatan Sayur Matinggi, Tapanuli Selatan, Provinsi Sumatera Utara, curah hujan tahunan yang terjadi pada tahun 1998 adalah sebesar 2,719.13 mm. Dengan jumlah hari hujan tahunan adalah 214 hari (58.63%). Curah hujan harian maksimum tahunan yang tercatat adalah sebesar 136.05 mm yang terjadi pada tanggal 18 Agustus 1998.
