| Tahun Data | : | 1999 |
| Nama Stasiun | : | TRMM-2264 |
| Lokasi Stasiun | : | Desa Sonopatik, Kecamatan Berbek, Nganjuk, Provinsi Jawa Timur |
| Longitude | : | 111.875000 |
| Latitude | : | -7.625000 |
| Tanggal | Jan | Feb | Mar | Apr | Mei | Jun | Jul | Agu | Sep | Okt | Nov | Des |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 5.108 | 0.691 | 22.584 | 0.505 | 6.521 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 49.339 | 0.000 |
| 2 | 0.000 | 43.907 | 0.000 | 15.552 | 3.923 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 3.210 | 9.821 |
| 3 | 6.284 | 8.945 | 0.439 | 63.935 | 4.516 | 0.167 | 0.000 | 0.000 | 0.000 | 0.000 | 29.074 | 14.118 |
| 4 | 16.250 | 0.000 | 31.405 | 98.736 | 0.240 | 0.000 | 21.240 | 0.000 | 0.000 | 0.000 | 0.771 | 3.048 |
| 5 | 0.000 | 2.577 | 30.051 | 16.122 | 7.618 | 0.000 | 0.900 | 0.000 | 0.000 | 0.000 | 3.853 | 2.328 |
| 6 | 0.000 | 10.411 | 15.483 | 13.565 | 0.000 | 0.250 | 0.540 | 0.000 | 0.000 | 0.000 | 3.647 | 14.626 |
| 7 | 25.088 | 1.026 | 6.076 | 9.804 | 1.085 | 0.167 | 0.000 | 0.000 | 0.000 | 0.000 | 0.668 | 6.244 |
| 8 | 30.546 | 1.655 | 17.423 | 1.547 | 1.463 | 0.000 | 0.000 | 0.413 | 0.000 | 0.000 | 11.969 | 24.554 |
| 9 | 4.732 | 6.222 | 0.146 | 22.131 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.242 | 0.000 | 16.722 |
| 10 | 13.921 | 4.211 | 23.389 | 3.632 | 0.000 | 0.583 | 0.000 | 4.950 | 0.000 | 0.000 | 30.384 | 5.249 |
| 11 | 0.000 | 4.923 | 2.196 | 4.527 | 1.665 | 0.000 | 1.890 | 0.000 | 0.000 | 13.282 | 0.539 | 2.688 |
| 12 | 2.329 | 5.488 | 20.973 | 14.021 | 0.240 | 0.000 | 0.000 | 0.000 | 0.000 | 3.933 | 0.000 | 11.790 |
| 13 | 12.844 | 0.000 | 29.977 | 5.455 | 12.084 | 0.000 | 0.000 | 0.000 | 0.000 | 5.658 | 8.090 | 7.281 |
| 14 | 2.604 | 0.000 | 3.294 | 67.501 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 22.496 | 9.426 | 0.000 |
| 15 | 3.856 | 19.147 | 25.439 | 7.963 | 0.177 | 0.000 | 0.000 | 0.000 | 0.000 | 14.845 | 15.975 | 1.355 |
| 16 | 9.164 | 31.066 | 29.831 | 19.754 | 0.000 | 1.958 | 0.000 | 0.000 | 0.000 | 0.081 | 45.563 | 14.118 |
| 17 | 12.894 | 13.009 | 11.274 | 0.000 | 0.000 | 0.000 | 0.810 | 0.000 | 0.360 | 0.000 | 14.845 | 0.000 |
| 18 | 21.858 | 17.722 | 0.622 | 0.000 | 0.000 | 0.000 | 2.160 | 0.000 | 0.000 | 0.000 | 5.573 | 4.255 |
| 19 | 9.615 | 9.971 | 24.597 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 5.342 | 10.435 |
| 20 | 0.826 | 10.788 | 0.622 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 15.330 | 13.921 | 17.336 |
| 21 | 11.017 | 8.212 | 12.189 | 0.000 | 0.000 | 0.583 | 0.000 | 0.000 | 0.000 | 0.000 | 14.871 | 21.463 |
| 22 | 3.605 | 0.587 | 0.000 | 0.000 | 0.000 | 19.958 | 0.000 | 0.000 | 0.000 | 0.000 | 10.762 | 14.013 |
| 23 | 14.772 | 32.574 | 15.300 | 0.000 | 0.000 | 0.000 | 0.000 | 0.354 | 0.000 | 0.000 | 10.042 | 9.821 |
| 24 | 21.282 | 0.000 | 26.610 | 0.000 | 0.000 | 0.000 | 0.000 | 4.066 | 0.000 | 0.000 | 22.756 | 6.011 |
| 25 | 13.621 | 49.102 | 2.379 | 0.000 | 0.000 | 0.000 | 4.680 | 0.177 | 0.000 | 3.044 | 5.907 | 2.688 |
| 26 | 0.501 | 25.410 | 13.726 | 1.645 | 0.000 | 1.875 | 0.000 | 0.000 | 0.000 | 0.835 | 0.000 | 3.048 |
| 27 | 31.072 | 4.483 | 14.861 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 21.257 | 11.686 | 0.000 |
| 28 | 35.679 | 4.923 | 5.600 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 11.261 | 0.000 | 0.000 |
| 29 | 10.791 | - | 5.051 | 1.173 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 1.212 | 0.000 | 14.986 |
| 30 | 14.822 | - | 12.225 | 0.326 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 13.929 | 0.000 | 55.140 |
| 31 | 4.131 | - | 0.000 | - | 0.000 | - | 0.000 | 0.000 | - | 15.599 | - | 37.825 |
| Total | 339.21 | 317.05 | 403.76 | 367.89 | 39.53 | 25.54 | 32.22 | 9.96 | 0.36 | 143.00 | 328.21 | 330.96 |
| Hari Hujan | 27.00 | 24.00 | 28.00 | 19.00 | 11.00 | 8.00 | 7.00 | 5.00 | 1.00 | 15.00 | 24.00 | 26.00 |
| Max | 35.679 | 49.102 | 31.405 | 98.736 | 12.084 | 19.958 | 21.240 | 4.950 | 0.360 | 22.496 | 49.339 | 55.140 |
| Avg | 10.94 | 11.32 | 13.02 | 12.26 | 1.28 | 0.85 | 1.04 | 0.32 | 0.01 | 4.61 | 10.94 | 10.68 |
Berdasarkan data hujan TRMM di Grid TRMM-2264, yang terletak di Desa Sonopatik, Kecamatan Berbek, Nganjuk, Provinsi Jawa Timur, curah hujan tahunan yang terjadi pada tahun 1999 adalah sebesar 2,337.71 mm. Dengan jumlah hari hujan tahunan adalah 195 hari (53.42%). Curah hujan harian maksimum tahunan yang tercatat adalah sebesar 98.74 mm yang terjadi pada tanggal 4 April 1999.
