| Tahun Data | : | 1999 |
| Nama Stasiun | : | TRMM-2296 |
| Lokasi Stasiun | : | Desa Ngadiwono, Kecamatan Tosari, Pasuruan, Provinsi Jawa Timur |
| Longitude | : | 112.875000 |
| Latitude | : | -7.875000 |
| Tanggal | Jan | Feb | Mar | Apr | Mei | Jun | Jul | Agu | Sep | Okt | Nov | Des |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 0.000 | 9.171 | 3.605 | 0.000 | 27.498 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 51.637 | 0.000 |
| 2 | 0.124 | 15.096 | 0.000 | 19.056 | 28.985 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 1.427 | 6.264 |
| 3 | 0.000 | 62.079 | 5.469 | 6.008 | 20.134 | 0.000 | 0.000 | 0.000 | 1.994 | 0.000 | 28.013 | 0.415 |
| 4 | 4.018 | 2.737 | 25.563 | 20.620 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 5.710 | 11.628 |
| 5 | 0.000 | 0.000 | 20.467 | 10.670 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 17.807 | 10.036 |
| 6 | 0.000 | 16.705 | 40.272 | 17.178 | 0.000 | 0.000 | 4.230 | 0.000 | 1.994 | 0.000 | 0.856 | 18.099 |
| 7 | 7.745 | 0.000 | 1.616 | 16.772 | 0.473 | 0.186 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 4.153 |
| 8 | 5.592 | 6.857 | 10.607 | 56.447 | 0.000 | 0.000 | 0.000 | 0.000 | 0.982 | 0.000 | 32.260 | 5.952 |
| 9 | 13.254 | 22.433 | 0.000 | 0.876 | 6.621 | 0.000 | 0.000 | 1.260 | 0.000 | 0.000 | 0.642 | 5.606 |
| 10 | 12.923 | 15.463 | 0.000 | 11.734 | 0.000 | 4.577 | 0.000 | 0.000 | 0.000 | 0.000 | 6.852 | 0.000 |
| 11 | 17.272 | 7.026 | 4.143 | 14.925 | 5.810 | 0.000 | 0.000 | 0.000 | 0.000 | 3.811 | 0.000 | 6.575 |
| 12 | 27.378 | 6.490 | 0.000 | 0.000 | 0.000 | 0.000 | 4.410 | 0.180 | 0.000 | 0.000 | 0.000 | 22.044 |
| 13 | 62.875 | 7.167 | 21.752 | 2.628 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.999 | 20.245 |
| 14 | 0.456 | 1.665 | 2.279 | 37.423 | 1.486 | 0.000 | 0.000 | 0.000 | 0.000 | 15.891 | 16.344 | 6.160 |
| 15 | 16.071 | 1.806 | 2.735 | 7.103 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 21.989 | 0.999 | 1.384 |
| 16 | 18.432 | 5.728 | 113.565 | 37.767 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 4.889 | 46.130 |
| 17 | 3.024 | 2.286 | 10.607 | 2.222 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 16.594 | 10.970 |
| 18 | 41.005 | 1.496 | 0.000 | 0.000 | 0.405 | 3.424 | 0.000 | 0.000 | 0.000 | 0.000 | 28.192 | 30.038 |
| 19 | 99.780 | 7.732 | 10.897 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.640 | 0.000 | 8.029 | 14.915 |
| 20 | 7.248 | 12.021 | 11.187 | 0.000 | 0.000 | 0.186 | 0.000 | 0.000 | 0.000 | 11.585 | 2.248 | 1.730 |
| 21 | 12.509 | 16.366 | 20.757 | 0.000 | 0.000 | 17.565 | 0.000 | 0.000 | 0.000 | 5.793 | 6.994 | 3.149 |
| 22 | 20.668 | 11.936 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.305 | 0.607 | 7.025 |
| 23 | 31.479 | 6.039 | 6.090 | 0.000 | 0.000 | 0.112 | 0.000 | 0.090 | 0.000 | 1.905 | 40.467 | 0.000 |
| 24 | 1.367 | 0.423 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.229 | 3.533 | 38.378 |
| 25 | 0.000 | 1.552 | 12.720 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 10.747 | 10.277 | 82.536 |
| 26 | 0.000 | 33.607 | 0.621 | 0.000 | 0.000 | 0.260 | 0.000 | 0.000 | 0.171 | 0.000 | 2.427 | 1.142 |
| 27 | 5.674 | 2.286 | 23.865 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.104 |
| 28 | 13.544 | 0.226 | 16.158 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 1.749 | 0.208 |
| 29 | 9.112 | - | 20.467 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 1.334 | 0.000 | 0.000 |
| 30 | 4.846 | - | 0.000 | 2.566 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 5.389 | 70.285 |
| 31 | 0.000 | - | 0.000 | - | 0.000 | - | 0.000 | 0.000 | - | 2.134 | - | 22.875 |
| Total | 436.40 | 276.39 | 385.44 | 264.00 | 91.41 | 26.31 | 8.64 | 1.53 | 5.78 | 75.72 | 294.94 | 448.05 |
| Hari Hujan | 24.00 | 26.00 | 22.00 | 16.00 | 8.00 | 7.00 | 2.00 | 3.00 | 5.00 | 11.00 | 25.00 | 27.00 |
| Max | 99.780 | 62.079 | 113.565 | 56.447 | 28.985 | 17.565 | 4.410 | 1.260 | 1.994 | 21.989 | 51.637 | 82.536 |
| Avg | 14.08 | 9.87 | 12.43 | 8.80 | 2.95 | 0.88 | 0.28 | 0.05 | 0.19 | 2.44 | 9.83 | 14.45 |
Berdasarkan data hujan TRMM di Grid TRMM-2296, yang terletak di Desa Ngadiwono, Kecamatan Tosari, Pasuruan, Provinsi Jawa Timur, curah hujan tahunan yang terjadi pada tahun 1999 adalah sebesar 2,314.61 mm. Dengan jumlah hari hujan tahunan adalah 176 hari (48.22%). Curah hujan harian maksimum tahunan yang tercatat adalah sebesar 113.57 mm yang terjadi pada tanggal 16 Maret 1999.
