| Average Precipitation mm (in) | 148.5 (5.85) | 102.8 (4) | 85.9 (3.4) | 31.8 (1.3) | 15.5 (0.6) | 2.7 (0.1) | 0.7 (0) | 1.1 (0) | 22.7 (0.9) | 28.9 (1.1) | 110.4 (4.3) | 163.7 (6.4) | | 714.7 (28.1) |
| Precipitation Litres/m² (Gallons/ft²) | 148.5 (3.64) | 102.8 (2.52) | 85.9 (2.11) | 31.8 (0.78) | 15.5 (0.38) | 2.7 (0.07) | 0.7 (0.02) | 1.1 (0.03) | 22.7 (0.56) | 28.9 (0.71) | 110.4 (2.71) | 163.7 (4.02) | | 714.7 (17.53) |
| Number of Wet Days (probability of rain on a day) | 14 (45%) | 11 (39%) | 10 (32%) | 6 (20%) | 5 (16%) | 1 (3%) | 0.5 (2%) | 0.5 (2%) | 1 (3%) | 6 (19%) | 9 (30%) | 14 (45%) | | 78 (21%) |