| Tahun Data | : | 1998 |
| Nama Stasiun | : | TRMM-2260 |
| Lokasi Stasiun | : | Desa Bakalan, Kecamatan Polokarto, Sukoharjo, Provinsi Jawa Tengah |
| Longitude | : | 110.875000 |
| Latitude | : | -7.625000 |
| Tanggal | Jan | Feb | Mar | Apr | Mei | Jun | Jul | Agu | Sep | Okt | Nov | Des |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 0.000 | 0.000 | 14.683 | 28.231 | 5.433 | 3.667 | 0.000 | 1.009 | 0.000 | 0.383 | 9.520 | 0.562 |
| 2 | 0.793 | 2.501 | 9.987 | 1.715 | 7.606 | 0.000 | 0.000 | 4.170 | 0.000 | 0.000 | 30.088 | 0.000 |
| 3 | 0.000 | 12.795 | 2.503 | 0.534 | 0.730 | 27.541 | 0.000 | 8.632 | 0.000 | 0.000 | 30.268 | 4.294 |
| 4 | 0.450 | 24.518 | 4.748 | 0.000 | 3.368 | 2.060 | 0.000 | 1.594 | 0.000 | 0.000 | 48.254 | 1.371 |
| 5 | 1.587 | 58.843 | 11.328 | 0.900 | 1.661 | 26.902 | 10.557 | 0.000 | 0.000 | 0.000 | 6.197 | 0.000 |
| 6 | 5.858 | 14.354 | 3.871 | 14.340 | 7.621 | 0.762 | 12.813 | 0.000 | 0.000 | 67.449 | 1.864 | 5.418 |
| 7 | 11.161 | 49.848 | 2.503 | 44.061 | 0.000 | 0.000 | 7.066 | 0.000 | 0.000 | 5.050 | 0.135 | 0.000 |
| 8 | 0.000 | 0.747 | 14.502 | 0.000 | 31.975 | 0.000 | 0.426 | 0.000 | 1.078 | 0.000 | 3.593 | 0.000 |
| 9 | 15.419 | 5.033 | 10.915 | 13.356 | 0.000 | 0.618 | 0.000 | 0.000 | 0.000 | 11.106 | 0.674 | 1.214 |
| 10 | 0.000 | 2.955 | 11.922 | 35.598 | 0.000 | 2.328 | 0.000 | 0.000 | 0.000 | 0.000 | 1.819 | 0.000 |
| 11 | 0.000 | 13.704 | 8.903 | 46.254 | 15.801 | 0.000 | 13.132 | 0.000 | 0.000 | 1.125 | 0.000 | 0.000 |
| 12 | 0.000 | 0.000 | 41.572 | 2.025 | 0.000 | 0.906 | 0.000 | 0.000 | 0.000 | 4.260 | 0.472 | 0.000 |
| 13 | 0.000 | 0.000 | 5.445 | 9.307 | 0.000 | 0.185 | 0.000 | 0.000 | 0.000 | 13.787 | 0.000 | 0.000 |
| 14 | 14.031 | 4.579 | 29.185 | 11.163 | 0.000 | 8.837 | 0.000 | 0.000 | 0.000 | 1.460 | 9.318 | 13.398 |
| 15 | 0.000 | 12.275 | 15.793 | 14.087 | 0.248 | 46.430 | 0.000 | 0.000 | 1.460 | 11.752 | 8.286 | 14.365 |
| 16 | 26.924 | 0.000 | 3.948 | 1.743 | 0.000 | 0.000 | 0.128 | 0.000 | 0.000 | 18.550 | 21.691 | 21.536 |
| 17 | 0.529 | 52.218 | 0.284 | 0.000 | 1.940 | 0.165 | 0.000 | 0.000 | 0.000 | 0.335 | 2.739 | 12.004 |
| 18 | 0.965 | 13.899 | 23.895 | 14.087 | 0.000 | 6.406 | 0.000 | 0.000 | 0.000 | 14.241 | 23.936 | 48.062 |
| 19 | 4.761 | 29.292 | 23.844 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 16.300 | 4.042 | 24.008 |
| 20 | 3.557 | 46.438 | 0.000 | 0.000 | 0.000 | 2.575 | 0.000 | 9.375 | 0.000 | 5.266 | 0.000 | 22.660 |
| 21 | 1.296 | 25.492 | 0.000 | 1.406 | 0.000 | 15.985 | 0.000 | 0.000 | 6.050 | 6.726 | 1.751 | 11.869 |
| 22 | 0.000 | 35.007 | 25.598 | 7.704 | 0.000 | 0.247 | 3.533 | 0.000 | 0.000 | 2.753 | 0.067 | 10.745 |
| 23 | 0.145 | 1.819 | 11.277 | 5.005 | 0.000 | 10.361 | 10.089 | 1.806 | 0.000 | 13.476 | 0.000 | 0.000 |
| 24 | 1.256 | 2.988 | 3.613 | 12.288 | 0.000 | 0.000 | 5.513 | 0.000 | 7.649 | 0.215 | 0.000 | 5.687 |
| 25 | 23.208 | 19.907 | 2.426 | 13.412 | 0.000 | 0.000 | 0.000 | 0.611 | 2.677 | 8.138 | 0.000 | 8.160 |
| 26 | 1.045 | 32.117 | 23.302 | 29.861 | 0.109 | 10.217 | 12.196 | 0.000 | 16.133 | 9.335 | 0.539 | 11.217 |
| 27 | 3.570 | 13.737 | 9.806 | 1.743 | 0.000 | 0.742 | 18.240 | 2.523 | 4.381 | 10.244 | 4.873 | 9.329 |
| 28 | 1.640 | 18.088 | 0.490 | 19.936 | 0.000 | 0.000 | 18.943 | 0.000 | 0.452 | 24.677 | 24.744 | 8.160 |
| 29 | 11.981 | - | 1.161 | 11.163 | 0.000 | 4.717 | 1.596 | 0.000 | 0.000 | 20.656 | 0.000 | 9.239 |
| 30 | 1.243 | - | 7.071 | 6.186 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 10.172 | 23.689 | 18.096 |
| 31 | 12.272 | - | 35.895 | - | 0.000 | - | 3.533 | 0.000 | - | 20.249 | - | 4.001 |
| Total | 143.69 | 493.15 | 360.47 | 346.11 | 76.49 | 171.65 | 117.77 | 29.72 | 39.88 | 297.71 | 258.56 | 265.40 |
| Hari Hujan | 22.00 | 24.00 | 29.00 | 25.00 | 11.00 | 20.00 | 14.00 | 8.00 | 8.00 | 25.00 | 23.00 | 22.00 |
| Max | 26.924 | 58.843 | 41.572 | 46.254 | 31.975 | 46.430 | 18.943 | 9.375 | 16.133 | 67.449 | 48.254 | 48.062 |
| Avg | 4.64 | 17.61 | 11.63 | 11.54 | 2.47 | 5.72 | 3.80 | 0.96 | 1.33 | 9.60 | 8.62 | 8.56 |
Berdasarkan data hujan TRMM di Grid TRMM-2260, yang terletak di Desa Bakalan, Kecamatan Polokarto, Sukoharjo, Provinsi Jawa Tengah, curah hujan tahunan yang terjadi pada tahun 1998 adalah sebesar 2,600.59 mm. Dengan jumlah hari hujan tahunan adalah 231 hari (63.29%). Curah hujan harian maksimum tahunan yang tercatat adalah sebesar 67.45 mm yang terjadi pada tanggal 6 Oktober 1998.