| Tahun Data | : | 2003 |
| Nama Stasiun | : | TRMM-0405 |
| Lokasi Stasiun | : | Desa Koto Nopan, Kecamatan Rao Utara, Pasaman, Provinsi Sumatera Barat |
| Longitude | : | 99.875000 |
| Latitude | : | 0.875000 |
| Tanggal | Jan | Feb | Mar | Apr | Mei | Jun | Jul | Agu | Sep | Okt | Nov | Des |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 0.000 | 7.462 | 0.000 | 1.974 | 15.137 | 0.000 | 0.000 | 0.000 | 6.966 | 8.033 | 39.124 | 21.258 |
| 2 | 21.955 | 19.181 | 2.290 | 7.444 | 18.224 | 0.000 | 7.867 | 34.169 | 5.189 | 16.434 | 72.462 | 5.700 |
| 3 | 21.529 | 11.444 | 8.554 | 9.280 | 7.285 | 0.000 | 15.859 | 3.651 | 0.000 | 0.000 | 13.232 | 52.509 |
| 4 | 9.414 | 0.000 | 0.000 | 23.026 | 25.978 | 0.000 | 7.950 | 0.000 | 32.272 | 26.374 | 21.653 | 27.294 |
| 5 | 0.000 | 2.930 | 0.000 | 0.000 | 11.063 | 0.000 | 0.000 | 6.958 | 0.000 | 44.862 | 10.139 | 2.079 |
| 6 | 0.000 | 0.000 | 0.000 | 13.608 | 3.482 | 0.000 | 2.743 | 14.122 | 36.750 | 29.272 | 44.394 | 7.578 |
| 7 | 45.437 | 0.000 | 0.000 | 7.098 | 1.111 | 1.882 | 4.274 | 0.000 | 1.315 | 11.995 | 2.034 | 0.000 |
| 8 | 24.655 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 10.693 | 0.000 | 14.572 | 38.039 | 33.625 | 12.507 |
| 9 | 25.507 | 0.183 | 6.455 | 2.978 | 30.300 | 0.000 | 0.543 | 0.000 | 0.000 | 93.539 | 0.000 | 23.472 |
| 10 | 26.360 | 0.000 | 15.041 | 2.078 | 0.000 | 0.000 | 3.982 | 15.844 | 0.000 | 5.392 | 28.126 | 11.400 |
| 11 | 22.026 | 21.149 | 20.511 | 13.781 | 0.395 | 2.258 | 17.836 | 60.966 | 51.144 | 0.000 | 40.499 | 21.258 |
| 12 | 43.022 | 3.204 | 11.098 | 13.746 | 0.914 | 5.990 | 4.831 | 32.722 | 0.000 | 0.000 | 3.122 | 24.880 |
| 13 | 0.000 | 1.968 | 1.717 | 59.694 | 10.174 | 1.819 | 0.000 | 0.000 | 32.556 | 7.557 | 0.000 | 13.178 |
| 14 | 33.110 | 1.648 | 1.431 | 13.816 | 9.557 | 6.429 | 15.232 | 91.759 | 4.265 | 0.000 | 0.000 | 0.235 |
| 15 | 2.771 | 35.798 | 22.991 | 33.864 | 3.778 | 6.648 | 2.256 | 25.213 | 8.423 | 19.038 | 41.788 | 18.442 |
| 16 | 0.000 | 9.293 | 15.613 | 31.994 | 0.000 | 1.819 | 0.000 | 9.575 | 0.000 | 0.000 | 11.227 | 12.842 |
| 17 | 1.847 | 14.695 | 11.289 | 18.802 | 0.000 | 8.687 | 13.784 | 6.889 | 4.869 | 3.962 | 2.005 | 9.623 |
| 18 | 22.026 | 19.684 | 44.773 | 16.205 | 0.000 | 0.000 | 0.000 | 0.000 | 14.572 | 0.000 | 16.870 | 12.608 |
| 19 | 18.615 | 2.472 | 1.590 | 37.603 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 1.403 | 1.911 |
| 20 | 10.160 | 3.937 | 58.002 | 29.951 | 0.000 | 10.255 | 0.000 | 0.000 | 12.120 | 0.000 | 8.363 | 0.000 |
| 21 | 6.430 | 9.659 | 14.946 | 14.266 | 0.000 | 8.812 | 0.000 | 0.000 | 10.094 | 0.000 | 7.905 | 0.000 |
| 22 | 5.009 | 0.000 | 0.000 | 9.972 | 0.000 | 0.000 | 1.309 | 4.271 | 6.007 | 0.000 | 28.326 | 0.000 |
| 23 | 8.491 | 0.000 | 16.440 | 5.886 | 0.000 | 7.370 | 0.752 | 18.324 | 0.000 | 0.073 | 52.643 | 0.000 |
| 24 | 26.644 | 7.370 | 1.431 | 3.186 | 0.000 | 1.286 | 0.000 | 0.000 | 43.041 | 38.516 | 8.793 | 0.000 |
| 25 | 40.499 | 1.556 | 18.062 | 0.000 | 0.000 | 3.826 | 0.000 | 0.000 | 0.000 | 34.481 | 15.208 | 0.000 |
| 26 | 35.774 | 0.000 | 9.667 | 13.088 | 0.000 | 22.140 | 0.446 | 0.000 | 5.011 | 15.040 | 39.095 | 19.984 |
| 27 | 24.157 | 23.209 | 36.951 | 2.874 | 0.000 | 25.496 | 1.559 | 36.029 | 3.590 | 1.431 | 2.807 | 8.181 |
| 28 | 0.000 | 0.000 | 9.444 | 3.740 | 0.000 | 46.820 | 5.876 | 24.111 | 23.920 | 30.006 | 11.628 | 0.000 |
| 29 | 0.000 | - | 1.399 | 4.328 | 0.000 | 1.850 | 4.957 | 35.409 | 7.855 | 0.000 | 26.550 | 0.000 |
| 30 | 3.766 | - | 5.247 | 8.310 | 0.000 | 27.659 | 0.000 | 0.000 | 4.656 | 2.898 | 3.408 | 0.000 |
| 31 | 24.228 | - | 16.949 | - | 0.543 | - | 0.000 | 0.000 | - | 9.647 | - | 0.000 |
| Total | 503.43 | 196.84 | 351.89 | 402.59 | 137.94 | 191.05 | 122.75 | 420.01 | 329.19 | 436.59 | 586.43 | 306.94 |
| Hari Hujan | 24.00 | 19.00 | 24.00 | 27.00 | 14.00 | 18.00 | 19.00 | 16.00 | 21.00 | 20.00 | 27.00 | 20.00 |
| Max | 45.437 | 35.798 | 58.002 | 59.694 | 30.300 | 46.820 | 17.836 | 91.759 | 51.144 | 93.539 | 72.462 | 52.509 |
| Avg | 16.24 | 7.03 | 11.35 | 13.42 | 4.45 | 6.37 | 3.96 | 13.55 | 10.97 | 14.08 | 19.55 | 9.90 |
Berdasarkan data hujan TRMM di Grid TRMM-0405, yang terletak di Desa Koto Nopan, Kecamatan Rao Utara, Pasaman, Provinsi Sumatera Barat, curah hujan tahunan yang terjadi pada tahun 2003 adalah sebesar 3,985.65 mm. Dengan jumlah hari hujan tahunan adalah 249 hari (68.22%). Curah hujan harian maksimum tahunan yang tercatat adalah sebesar 93.54 mm yang terjadi pada tanggal 9 Oktober 2003.
