| Average Precipitation mm (in) | 150.4 (5.92) | 112.8 (4.4) | 89.6 (3.5) | 51.3 (2) | 17 (0.7) | 7.2 (0.3) | 5 (0.2) | 9.1 (0.4) | 25.4 (1) | 146.5 (5.8) | 159.1 (6.3) | 169.9 (6.7) | | 943.3 (37.1) |
| Precipitation Litres/m² (Gallons/ft²) | 150.4 (3.69) | 112.8 (2.77) | 89.6 (2.2) | 51.3 (1.26) | 17 (0.42) | 7.2 (0.18) | 5 (0.12) | 9.1 (0.22) | 25.4 (0.62) | 146.5 (3.59) | 159.1 (3.9) | 169.9 (4.17) | | 943.3 (23.14) |
| Number of Wet Days (probability of rain on a day) | 13 (42%) | 10 (35%) | 10 (32%) | 6 (20%) | 3 (10%) | 2 (7%) | 0 (0%) | 1 (3%) | 3 (10%) | 8 (26%) | 11 (37%) | 15 (48%) | | 82 (23%) |