| Tahun Data | : | 1998 |
| Nama Stasiun | : | TRMM-2323 |
| Lokasi Stasiun | : | Desa Mlati, Kecamatan Arjosari, Pacitan, Provinsi Jawa Timur |
| Longitude | : | 111.125000 |
| Latitude | : | -8.125000 |
| Tanggal | Jan | Feb | Mar | Apr | Mei | Jun | Jul | Agu | Sep | Okt | Nov | Des |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 0.000 | 0.000 | 7.484 | 8.076 | 7.371 | 0.280 | 7.749 | 0.911 | 0.000 | 0.977 | 12.996 | 23.778 |
| 2 | 0.000 | 0.221 | 5.213 | 0.425 | 22.827 | 0.224 | 0.000 | 0.000 | 0.000 | 0.000 | 17.349 | 1.949 |
| 3 | 0.000 | 8.354 | 1.087 | 6.659 | 7.599 | 2.422 | 0.000 | 0.000 | 0.000 | 0.000 | 7.618 | 3.628 |
| 4 | 0.000 | 18.078 | 1.279 | 2.692 | 0.789 | 7.100 | 0.000 | 0.000 | 0.000 | 0.000 | 44.472 | 0.570 |
| 5 | 0.000 | 9.238 | 7.868 | 0.496 | 2.048 | 4.882 | 11.282 | 2.703 | 0.000 | 0.000 | 32.522 | 0.000 |
| 6 | 7.331 | 15.426 | 0.000 | 14.275 | 0.000 | 0.000 | 11.453 | 0.000 | 0.000 | 1.344 | 0.377 | 11.094 |
| 7 | 0.000 | 1.945 | 2.047 | 8.430 | 0.425 | 0.000 | 21.566 | 2.126 | 0.000 | 3.518 | 1.632 | 1.709 |
| 8 | 0.000 | 0.840 | 6.749 | 0.000 | 1.229 | 0.000 | 4.729 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| 9 | 12.112 | 1.414 | 15.768 | 30.498 | 0.000 | 0.000 | 0.000 | 0.000 | 0.050 | 0.000 | 25.239 | 0.030 |
| 10 | 0.000 | 8.796 | 8.220 | 3.507 | 0.000 | 0.000 | 0.940 | 1.306 | 0.000 | 2.908 | 18.647 | 0.000 |
| 11 | 0.000 | 2.475 | 7.708 | 27.487 | 1.866 | 13.659 | 7.720 | 0.000 | 0.000 | 0.855 | 0.000 | 0.000 |
| 12 | 0.000 | 0.000 | 7.964 | 0.567 | 0.000 | 16.342 | 5.356 | 0.000 | 0.000 | 1.246 | 0.607 | 0.000 |
| 13 | 0.000 | 0.000 | 15.992 | 15.656 | 0.000 | 1.248 | 0.000 | 0.000 | 0.000 | 6.426 | 0.000 | 0.000 |
| 14 | 5.335 | 32.266 | 9.595 | 14.735 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 5.864 | 14.796 | 0.600 |
| 15 | 0.000 | 25.592 | 16.664 | 2.550 | 0.182 | 33.281 | 0.000 | 0.000 | 0.000 | 0.000 | 5.860 | 27.076 |
| 16 | 11.085 | 14.896 | 4.798 | 12.362 | 0.000 | 0.000 | 7.208 | 0.000 | 0.000 | 8.967 | 12.201 | 28.725 |
| 17 | 25.548 | 49.240 | 5.117 | 4.959 | 0.000 | 0.280 | 0.000 | 0.000 | 1.283 | 39.534 | 0.628 | 24.887 |
| 18 | 3.280 | 1.105 | 21.430 | 14.417 | 0.000 | 36.169 | 0.000 | 0.000 | 0.000 | 3.909 | 3.432 | 36.641 |
| 19 | 14.582 | 4.729 | 23.125 | 0.000 | 0.000 | 0.429 | 0.057 | 0.000 | 0.000 | 24.629 | 0.649 | 13.313 |
| 20 | 0.000 | 40.046 | 0.448 | 3.755 | 0.000 | 11.889 | 0.000 | 5.437 | 0.000 | 4.813 | 0.084 | 23.448 |
| 21 | 0.000 | 6.939 | 0.000 | 4.463 | 0.000 | 30.839 | 0.000 | 0.000 | 0.453 | 7.550 | 0.000 | 13.913 |
| 22 | 0.000 | 12.288 | 23.668 | 7.580 | 0.000 | 1.752 | 9.515 | 0.000 | 10.793 | 1.368 | 0.544 | 37.751 |
| 23 | 0.948 | 4.332 | 33.168 | 3.153 | 0.000 | 8.553 | 7.521 | 0.456 | 0.000 | 15.980 | 0.000 | 2.909 |
| 24 | 2.134 | 0.000 | 9.307 | 0.000 | 0.000 | 0.000 | 14.216 | 0.000 | 2.088 | 2.883 | 0.000 | 1.139 |
| 25 | 8.121 | 7.426 | 27.059 | 6.553 | 0.000 | 0.000 | 0.199 | 2.005 | 27.120 | 7.990 | 0.000 | 8.576 |
| 26 | 3.557 | 21.482 | 14.841 | 13.602 | 0.015 | 7.305 | 8.575 | 3.220 | 4.679 | 10.116 | 0.000 | 11.694 |
| 27 | 3.497 | 56.135 | 24.788 | 6.836 | 0.000 | 0.000 | 18.033 | 4.860 | 7.371 | 17.934 | 33.861 | 16.551 |
| 28 | 0.948 | 23.205 | 27.698 | 23.874 | 0.000 | 12.578 | 19.800 | 0.000 | 3.069 | 54.952 | 18.082 | 0.750 |
| 29 | 9.267 | - | 26.803 | 15.338 | 0.000 | 0.000 | 1.282 | 0.000 | 0.000 | 8.479 | 10.464 | 4.947 |
| 30 | 4.011 | - | 0.160 | 36.024 | 1.016 | 0.000 | 11.623 | 0.000 | 0.000 | 13.805 | 25.113 | 13.553 |
| 31 | 12.507 | - | 14.873 | - | 0.546 | - | 0.000 | 0.000 | - | 12.095 | - | 3.238 |
| Total | 124.26 | 366.47 | 370.92 | 288.97 | 45.91 | 189.23 | 168.82 | 23.02 | 56.91 | 258.14 | 287.17 | 312.47 |
| Hari Hujan | 16.00 | 24.00 | 29.00 | 27.00 | 12.00 | 18.00 | 19.00 | 9.00 | 9.00 | 24.00 | 22.00 | 25.00 |
| Max | 25.548 | 56.135 | 33.168 | 36.024 | 22.827 | 36.169 | 21.566 | 5.437 | 27.120 | 54.952 | 44.472 | 37.751 |
| Avg | 4.01 | 13.09 | 11.97 | 9.63 | 1.48 | 6.31 | 5.45 | 0.74 | 1.90 | 8.33 | 9.57 | 10.08 |
Berdasarkan data hujan TRMM di Grid TRMM-2323, yang terletak di Desa Mlati, Kecamatan Arjosari, Pacitan, Provinsi Jawa Timur, curah hujan tahunan yang terjadi pada tahun 1998 adalah sebesar 2,492.30 mm. Dengan jumlah hari hujan tahunan adalah 234 hari (64.11%). Curah hujan harian maksimum tahunan yang tercatat adalah sebesar 56.14 mm yang terjadi pada tanggal 27 Februari 1998.