| Tahun Data | : | 1998 |
| Nama Stasiun | : | TRMM-1199 |
| Lokasi Stasiun | : | Desa Saureinu, Kecamatan Sipora Selatan, Kepulauan Mentawai, Provinsi Sumatera Barat |
| Longitude | : | 99.625000 |
| Latitude | : | -2.125000 |
| Tanggal | Jan | Feb | Mar | Apr | Mei | Jun | Jul | Agu | Sep | Okt | Nov | Des |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 3.727 | 22.009 | 0.000 | 4.203 | 0.000 | 34.682 | 0.000 | 0.000 | 0.000 | 0.520 | 9.926 | 8.384 |
| 2 | 0.606 | 7.472 | 0.000 | 10.981 | 20.628 | 15.896 | 0.000 | 0.000 | 21.951 | 1.315 | 17.643 | 20.443 |
| 3 | 36.722 | 0.220 | 2.172 | 39.989 | 30.971 | 1.291 | 0.000 | 26.457 | 21.397 | 0.245 | 8.020 | 1.154 |
| 4 | 0.697 | 9.168 | 7.973 | 7.193 | 3.319 | 56.851 | 0.000 | 9.478 | 0.185 | 3.976 | 19.943 | 8.262 |
| 5 | 0.000 | 13.280 | 15.827 | 22.880 | 4.060 | 0.738 | 0.000 | 10.953 | 10.960 | 9.696 | 2.875 | 21.475 |
| 6 | 9.393 | 7.064 | 54.652 | 30.310 | 22.110 | 0.000 | 0.000 | 4.959 | 23.860 | 3.823 | 2.542 | 7.958 |
| 7 | 2.303 | 1.538 | 17.107 | 0.799 | 0.000 | 6.334 | 6.550 | 11.016 | 27.955 | 0.000 | 0.000 | 4.921 |
| 8 | 0.000 | 0.000 | 8.479 | 6.334 | 7.972 | 0.000 | 0.797 | 21.624 | 0.246 | 0.000 | 0.000 | 0.122 |
| 9 | 2.515 | 0.000 | 8.687 | 10.123 | 0.593 | 1.568 | 5.045 | 13.809 | 0.000 | 0.000 | 0.000 | 32.988 |
| 10 | 2.030 | 0.000 | 1.428 | 66.391 | 5.394 | 33.299 | 18.028 | 1.632 | 0.031 | 1.927 | 32.866 | 13.213 |
| 11 | 1.151 | 0.220 | 0.000 | 5.920 | 61.112 | 0.000 | 0.059 | 5.806 | 6.835 | 4.588 | 14.012 | 35.053 |
| 12 | 3.030 | 0.000 | 0.000 | 59.287 | 5.157 | 1.968 | 1.859 | 12.052 | 0.585 | 17.404 | 1.513 | 7.017 |
| 13 | 27.814 | 0.000 | 16.750 | 19.003 | 25.725 | 0.092 | 0.000 | 14.499 | 0.000 | 34.899 | 17.704 | 1.397 |
| 14 | 31.087 | 21.286 | 12.257 | 5.535 | 21.961 | 1.076 | 2.124 | 33.424 | 12.777 | 3.334 | 2.058 | 40.703 |
| 15 | 16.452 | 11.899 | 3.481 | 1.066 | 0.000 | 0.000 | 5.311 | 17.355 | 0.000 | 7.463 | 18.521 | 2.886 |
| 16 | 34.147 | 0.000 | 0.803 | 0.000 | 3.290 | 8.455 | 23.486 | 0.879 | 9.944 | 0.000 | 28.538 | 1.185 |
| 17 | 8.272 | 8.351 | 7.319 | 3.463 | 12.033 | 0.369 | 165.966 | 45.570 | 13.608 | 1.958 | 3.026 | 14.641 |
| 18 | 1.030 | 19.968 | 11.127 | 4.913 | 0.000 | 4.735 | 124.452 | 9.133 | 21.212 | 13.580 | 19.066 | 6.045 |
| 19 | 12.604 | 0.565 | 20.082 | 43.777 | 0.000 | 4.366 | 46.500 | 4.770 | 2.494 | 3.976 | 0.545 | 4.678 |
| 20 | 17.392 | 0.000 | 14.756 | 1.480 | 0.000 | 10.146 | 31.836 | 0.000 | 1.478 | 12.479 | 0.000 | 4.587 |
| 21 | 0.000 | 0.000 | 0.000 | 3.670 | 0.000 | 18.018 | 31.688 | 2.260 | 7.512 | 16.089 | 2.179 | 3.918 |
| 22 | 0.000 | 0.000 | 5.028 | 5.328 | 0.000 | 10.761 | 0.502 | 6.371 | 38.022 | 0.000 | 10.229 | 12.363 |
| 23 | 0.000 | 1.444 | 60.186 | 28.060 | 0.000 | 0.000 | 0.207 | 1.820 | 7.450 | 54.108 | 0.000 | 12.909 |
| 24 | 5.696 | 0.565 | 5.444 | 17.227 | 5.305 | 0.000 | 1.534 | 5.053 | 12.746 | 2.661 | 2.936 | 22.721 |
| 25 | 0.000 | 0.000 | 6.129 | 0.000 | 0.000 | 8.886 | 80.785 | 17.104 | 67.177 | 9.360 | 0.000 | 13.001 |
| 26 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.061 | 4.632 | 21.718 | 10.714 | 65.822 | 3.238 | 27.672 |
| 27 | 0.000 | 6.625 | 1.666 | 8.821 | 0.000 | 0.000 | 0.000 | 0.000 | 5.234 | 12.877 | 13.830 | 0.000 |
| 28 | 0.000 | 0.000 | 21.629 | 4.203 | 7.913 | 0.000 | 0.000 | 5.461 | 0.000 | 0.000 | 0.000 | 4.465 |
| 29 | 7.757 | - | 1.071 | 77.876 | 0.059 | 0.000 | 69.927 | 24.260 | 8.528 | 0.000 | 20.306 | 0.395 |
| 30 | 3.181 | - | 54.712 | 13.704 | 0.000 | 1.076 | 6.934 | 16.257 | 2.309 | 29.271 | 11.863 | 11.117 |
| 31 | 0.000 | - | 14.786 | - | 10.106 | - | 7.730 | 0.188 | - | 17.924 | - | 29.077 |
| Total | 227.61 | 131.67 | 373.55 | 502.54 | 247.71 | 220.67 | 635.95 | 343.91 | 335.21 | 329.30 | 263.38 | 374.75 |
| Hari Hujan | 21.00 | 16.00 | 25.00 | 27.00 | 18.00 | 21.00 | 22.00 | 27.00 | 25.00 | 24.00 | 23.00 | 30.00 |
| Max | 36.722 | 22.009 | 60.186 | 77.876 | 61.112 | 56.851 | 165.966 | 45.570 | 67.177 | 65.822 | 32.866 | 40.703 |
| Avg | 7.34 | 4.70 | 12.05 | 16.75 | 7.99 | 7.36 | 20.51 | 11.09 | 11.17 | 10.62 | 8.78 | 12.09 |
Berdasarkan data hujan TRMM di Grid TRMM-1199, yang terletak di Desa Saureinu, Kecamatan Sipora Selatan, Kepulauan Mentawai, Provinsi Sumatera Barat, curah hujan tahunan yang terjadi pada tahun 1998 adalah sebesar 3,986.24 mm. Dengan jumlah hari hujan tahunan adalah 279 hari (76.44%). Curah hujan harian maksimum tahunan yang tercatat adalah sebesar 165.97 mm yang terjadi pada tanggal 17 Juli 1998.
