| Tahun Data | : | 1999 |
| Nama Stasiun | : | TRMM-2326 |
| Lokasi Stasiun | : | Desa Ngranti, Kecamatan Boyolangu, Tulungagung, Provinsi Jawa Timur |
| Longitude | : | 111.875000 |
| Latitude | : | -8.125000 |
| Tanggal | Jan | Feb | Mar | Apr | Mei | Jun | Jul | Agu | Sep | Okt | Nov | Des |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 0.000 | 1.270 | 0.124 | 0.000 | 15.031 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 24.945 | 0.000 |
| 2 | 1.475 | 18.837 | 0.000 | 7.908 | 9.144 | 0.000 | 0.360 | 0.000 | 0.000 | 0.000 | 2.722 | 0.000 |
| 3 | 0.201 | 8.188 | 10.667 | 13.963 | 0.000 | 35.711 | 0.000 | 0.000 | 0.000 | 0.000 | 29.060 | 29.703 |
| 4 | 7.608 | 0.829 | 11.697 | 16.924 | 0.000 | 0.000 | 5.130 | 0.000 | 0.000 | 0.000 | 4.843 | 2.705 |
| 5 | 0.000 | 0.000 | 21.499 | 3.018 | 0.000 | 0.000 | 0.270 | 0.048 | 0.000 | 0.000 | 6.236 | 0.078 |
| 6 | 5.262 | 9.535 | 23.270 | 7.621 | 0.000 | 1.657 | 0.000 | 0.000 | 0.000 | 0.000 | 1.963 | 12.276 |
| 7 | 0.000 | 0.000 | 20.222 | 17.955 | 0.814 | 0.305 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 2.575 |
| 8 | 1.676 | 2.176 | 14.909 | 45.576 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 2.596 | 4.448 |
| 9 | 12.032 | 8.188 | 39.044 | 26.627 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 5.826 |
| 10 | 42.264 | 12.022 | 0.618 | 3.114 | 0.000 | 0.000 | 0.000 | 17.618 | 0.000 | 0.000 | 1.709 | 6.320 |
| 11 | 7.474 | 2.228 | 24.629 | 8.252 | 0.898 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 4.083 |
| 12 | 4.893 | 10.546 | 23.311 | 3.133 | 0.084 | 0.000 | 0.000 | 0.000 | 0.000 | 0.777 | 12.124 | 13.941 |
| 13 | 1.173 | 28.139 | 15.897 | 11.595 | 8.496 | 0.000 | 0.000 | 0.000 | 0.000 | 4.868 | 25.198 | 34.150 |
| 14 | 12.803 | 0.725 | 7.166 | 18.891 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 16.935 | 7.408 | 3.589 |
| 15 | 23.596 | 4.146 | 2.677 | 5.425 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 1.391 | 37.576 | 0.000 |
| 16 | 17.328 | 0.777 | 11.079 | 26.188 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.164 | 18.930 | 13.811 |
| 17 | 4.927 | 2.306 | 30.354 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 5.065 | 5.670 |
| 18 | 19.104 | 0.052 | 3.130 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 6.173 | 9.129 |
| 19 | 31.841 | 13.111 | 15.280 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.475 | 2.523 |
| 20 | 2.346 | 14.536 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 22.253 | 4.812 | 1.639 |
| 21 | 0.737 | 3.550 | 36.531 | 0.134 | 0.000 | 0.872 | 0.000 | 0.000 | 0.000 | 0.000 | 19.627 | 3.043 |
| 22 | 4.625 | 0.803 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 24.597 | 0.364 |
| 23 | 20.680 | 8.058 | 2.595 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 20.767 | 0.286 |
| 24 | 2.279 | 2.021 | 9.102 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 4.495 | 8.765 |
| 25 | 10.759 | 9.587 | 8.319 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 3.436 | 2.912 | 10.404 |
| 26 | 0.268 | 31.455 | 0.000 | 0.000 | 0.000 | 0.131 | 0.000 | 0.000 | 0.630 | 13.458 | 0.000 | 7.777 |
| 27 | 1.810 | 7.618 | 1.524 | 0.611 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 21.516 | 0.475 | 7.179 |
| 28 | 9.318 | 0.959 | 3.295 | 0.019 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 9.449 | 0.000 | 0.000 |
| 29 | 7.608 | - | 3.212 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 2.004 | 0.000 | 7.023 |
| 30 | 8.949 | - | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 22.416 | 0.000 | 20.469 |
| 31 | 5.195 | - | 0.000 | - | 0.000 | - | 0.000 | 0.000 | - | 4.991 | - | 53.267 |
| Total | 268.23 | 201.66 | 340.15 | 216.95 | 34.47 | 38.68 | 5.76 | 17.67 | 0.63 | 123.66 | 264.71 | 271.04 |
| Hari Hujan | 28.00 | 26.00 | 25.00 | 18.00 | 6.00 | 5.00 | 3.00 | 2.00 | 1.00 | 13.00 | 23.00 | 27.00 |
| Max | 42.264 | 31.455 | 39.044 | 45.576 | 15.031 | 35.711 | 5.130 | 17.618 | 0.630 | 22.416 | 37.576 | 53.267 |
| Avg | 8.65 | 7.20 | 10.97 | 7.23 | 1.11 | 1.29 | 0.19 | 0.57 | 0.02 | 3.99 | 8.82 | 8.74 |
Berdasarkan data hujan TRMM di Grid TRMM-2326, yang terletak di Desa Ngranti, Kecamatan Boyolangu, Tulungagung, Provinsi Jawa Timur, curah hujan tahunan yang terjadi pada tahun 1999 adalah sebesar 1,783.61 mm. Dengan jumlah hari hujan tahunan adalah 177 hari (48.49%). Curah hujan harian maksimum tahunan yang tercatat adalah sebesar 53.27 mm yang terjadi pada tanggal 31 Desember 1999.
