| Month: Jan 2009 | ||||
| Date | Rain acc | Rain mm | Comment | Mean 1960-1990 |
| 1 | 0 | 0 | 3.4 | |
| 2 | 0 | 0 | 6.7 | |
| 3 | 0 | 0 | 10.1 | |
| 4 | 0.2 | 0.2 | 13.4 | |
| 5 | 0.4 | 0.2 | 16.8 | |
| 6 | 0.4 | 0 | 20.1 | |
| 7 | 0.4 | 0 | 23.5 | |
| 8 | 0.4 | 0 | 26.8 | |
| 9 | 0.4 | 0 | 30.2 | |
| 10 | 0.6 | 0.2 | 33.5 | |
| 11 | 0.6 | 0 | 36.9 | |
| 12 | 4.8 | 4.2 | 40.3 | |
| 13 | 5.6 | 0.8 | 43.6 | |
| 14 | 7.4 | 1.8 | 47.0 | |
| 15 | 13 | 5.6 | 50.3 | |
| 16 | 15.4 | 2.4 | 53.7 | |
| 17 | 30.6 | 15.2 | 57.0 | |
| 18 | 33.5 | 2.9 | 60.4 | |
| 19 | 41.5 | 8 | 63.7 | |
| 20 | 42.8 | 1.3 | 67.1 | |
| 21 | 48.9 | 6.1 | 70.5 | |
| 22 | 58.7 | 9.8 | 73.8 | |
| 23 | 65.9 | 7.2 | 77.2 | |
| 24 | 67.2 | 1.3 | 80.5 | |
| 25 | 80.2 | 13 | 83.9 | |
| 26 | 81.2 | 1 | 87.2 | |
| 27 | 86.5 | 5.3 | 90.6 | |
| 28 | 92.8 | 5 | 93.9 | |
| 29 | 92.8 | 1.3 | 97.3 | |
| 30 | 92.8 | 100.6 | ||
| 31 | 92.8 | 104.0 | ||
| Means | ||||