| Tahun Data | : | 2004 |
| Nama Stasiun | : | TRMM-1343 |
| Lokasi Stasiun | : | Desa Saumanganya, Kecamatan Pagai Utara, Kepulauan Mentawai, Provinsi Sumatera Barat |
| Longitude | : | 100.125000 |
| Latitude | : | -2.625000 |
| Tanggal | Jan | Feb | Mar | Apr | Mei | Jun | Jul | Agu | Sep | Okt | Nov | Des |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 15.183 | 16.278 | 0.000 | 0.000 | 0.238 | 14.659 | 41.115 | 40.591 | 2.351 | 21.428 | 3.134 | 0.000 |
| 2 | 2.709 | 0.959 | 43.577 | 61.800 | 8.744 | 0.148 | 4.509 | 0.000 | 12.709 | 30.849 | 23.957 | 0.578 |
| 3 | 5.120 | 0.000 | 13.547 | 17.696 | 13.562 | 0.000 | 0.000 | 0.000 | 6.608 | 7.668 | 8.558 | 9.038 |
| 4 | 7.294 | 0.000 | 2.038 | 7.815 | 2.231 | 0.000 | 32.744 | 0.000 | 0.000 | 0.000 | 6.569 | 0.000 |
| 5 | 14.171 | 13.759 | 0.360 | 0.000 | 52.107 | 0.000 | 94.755 | 0.000 | 0.923 | 7.757 | 4.430 | 24.952 |
| 6 | 2.352 | 9.982 | 34.496 | 1.048 | 5.740 | 57.984 | 14.648 | 0.000 | 0.476 | 0.000 | 0.000 | 7.394 |
| 7 | 1.697 | 0.000 | 38.751 | 12.965 | 0.000 | 0.000 | 36.045 | 1.745 | 6.012 | 0.000 | 3.375 | 0.152 |
| 8 | 4.138 | 3.058 | 2.517 | 12.965 | 0.000 | 0.000 | 0.000 | 7.191 | 19.079 | 1.486 | 0.000 | 7.881 |
| 9 | 6.609 | 0.000 | 1.439 | 2.904 | 0.000 | 1.513 | 4.333 | 2.858 | 15.924 | 2.675 | 1.416 | 0.943 |
| 10 | 0.000 | 1.169 | 5.035 | 24.912 | 0.000 | 0.356 | 27.115 | 0.000 | 0.000 | 4.280 | 9.703 | 8.825 |
| 11 | 0.208 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 43.188 | 9.956 | 17.388 | 14.971 |
| 12 | 16.403 | 4.796 | 4.496 | 2.755 | 20.284 | 0.000 | 0.000 | 0.000 | 0.000 | 26.005 | 67.230 | 24.830 |
| 13 | 0.149 | 0.000 | 1.648 | 13.713 | 0.000 | 0.000 | 14.471 | 2.046 | 12.293 | 4.458 | 16.664 | 24.404 |
| 14 | 15.332 | 0.000 | 5.035 | 13.025 | 0.000 | 0.000 | 27.734 | 0.000 | 0.000 | 0.000 | 9.251 | 15.641 |
| 15 | 1.637 | 0.000 | 47.053 | 2.725 | 5.472 | 0.000 | 7.928 | 0.000 | 2.351 | 1.456 | 6.147 | 0.000 |
| 16 | 6.222 | 1.019 | 5.365 | 13.713 | 0.000 | 0.000 | 29.208 | 0.000 | 2.560 | 3.923 | 3.707 | 0.000 |
| 17 | 20.690 | 3.627 | 23.557 | 15.091 | 0.000 | 0.000 | 1.474 | 0.000 | 25.270 | 68.653 | 70.033 | 8.216 |
| 18 | 30.782 | 0.000 | 1.499 | 1.168 | 0.000 | 0.000 | 0.000 | 4.182 | 25.121 | 10.640 | 6.810 | 32.985 |
| 19 | 2.590 | 11.032 | 1.319 | 0.958 | 0.000 | 9.348 | 0.000 | 0.000 | 0.000 | 3.774 | 7.564 | 66.427 |
| 20 | 18.904 | 0.000 | 1.379 | 4.491 | 0.000 | 4.451 | 0.766 | 8.184 | 15.269 | 19.645 | 25.464 | 0.000 |
| 21 | 0.000 | 13.280 | 8.661 | 6.587 | 6.603 | 0.000 | 0.000 | 0.241 | 0.000 | 34.891 | 1.025 | 0.030 |
| 22 | 62.696 | 8.124 | 0.000 | 1.916 | 50.292 | 2.938 | 0.000 | 8.004 | 66.285 | 69.841 | 1.838 | 18.227 |
| 23 | 0.000 | 0.000 | 0.000 | 35.541 | 28.789 | 0.000 | 7.899 | 6.770 | 35.896 | 1.872 | 14.585 | 0.669 |
| 24 | 4.108 | 17.836 | 0.000 | 3.413 | 14.543 | 0.000 | 2.063 | 46.609 | 10.447 | 0.000 | 13.952 | 13.693 |
| 25 | 0.000 | 24.611 | 0.000 | 84.765 | 41.489 | 3.739 | 0.000 | 9.268 | 18.811 | 21.071 | 1.778 | 33.655 |
| 26 | 44.268 | 8.064 | 0.000 | 12.067 | 83.067 | 1.543 | 9.756 | 0.000 | 24.020 | 0.000 | 6.630 | 0.000 |
| 27 | 3.781 | 32.165 | 0.000 | 2.635 | 0.000 | 12.107 | 3.389 | 0.000 | 7.798 | 12.928 | 0.000 | 22.092 |
| 28 | 7.204 | 0.000 | 0.060 | 45.661 | 12.194 | 0.000 | 21.604 | 20.461 | 20.448 | 11.264 | 7.082 | 0.943 |
| 29 | 8.484 | 24.578 | 0.000 | 0.000 | 7.316 | 0.000 | 0.000 | 26.118 | 12.799 | 45.323 | 4.249 | 30.490 |
| 30 | 5.240 | - | 0.000 | 0.000 | 0.000 | 29.120 | 1.768 | 25.004 | 3.929 | 8.856 | 5.751 | 10.742 |
| 31 | 61.917 | - | 3.892 | - | 9.348 | - | 18.131 | 45.405 | - | 43.510 | - | 30.109 |
| Total | 369.89 | 194.34 | 245.72 | 402.33 | 362.02 | 137.91 | 401.46 | 254.68 | 390.57 | 474.21 | 348.29 | 407.89 |
| Hari Hujan | 27.00 | 17.00 | 21.00 | 25.00 | 17.00 | 12.00 | 21.00 | 16.00 | 24.00 | 25.00 | 27.00 | 25.00 |
| Max | 62.696 | 32.165 | 47.053 | 84.765 | 83.067 | 57.984 | 94.755 | 46.609 | 66.285 | 69.841 | 70.033 | 66.427 |
| Avg | 11.93 | 6.70 | 7.93 | 13.41 | 11.68 | 4.60 | 12.95 | 8.22 | 13.02 | 15.30 | 11.61 | 13.16 |
Berdasarkan data hujan TRMM di Grid TRMM-1343, yang terletak di Desa Saumanganya, Kecamatan Pagai Utara, Kepulauan Mentawai, Provinsi Sumatera Barat, curah hujan tahunan yang terjadi pada tahun 2004 adalah sebesar 3,989.29 mm. Dengan jumlah hari hujan tahunan adalah 257 hari (70.41%). Curah hujan harian maksimum tahunan yang tercatat adalah sebesar 94.76 mm yang terjadi pada tanggal 5 Juli 2004.
