| Precipitation period | +0 month | +1 month | +2 month | +3 month | +4 month | +5 month | +6 month |
| Oct. | −0.16 | 0.42 | 0.22 | 0.07 | 0.32 | 0.53 | 0.19 |
| Nov. | 0.01 | −0.25 | −0.22 | −0.03 | 0.47 | 0.23 | −0.26 |
| Dec. | 0.45 | 0.38 | 0.47 | 0.05 | 0.55 | 0.48 | 0.27 |
| Jan. | 0.05 | 0.19 | −0.36 | −0.03 | 0.06 | 0.75 | 0.32 |
| Feb. | 0.62 | −0.08 | 0.71 | 0.50 | 0.50 | 0.23 | 0.39 |
| Mar. | −0.08 | 0.39 | 0.54 | 0.55 | 0.14 | 0.73 | 0.09 |
| Apr. | 0.34 | 0.32 | −0.20 | −0.24 | −0.02 | 0.54 | 0.02 |
| May. | 0.22 | 0.70 | 0.62 | 0.21 | −0.41 | 0.53 | −0.36 |
| Jun. | 0.04 | 0.19 | −0.06 | 0.52 | 0.41 | 0.08 | 0.09 |
| Jul. | 0.17 | 0.50 | 0.59 | 0.38 | 0.36 | 0.12 | 0.31 |
| Aug. | −0.51 | 0.52 | −0.11 | 0.17 | 0.18 | 0.26 | 0.41 |
| Sep. | 0.07 | 0.53 | 0.36 | 0.61 | 0.55 | 0.37 | −0.14 |