 | Average Precipitation mm (in) | 0 (0) | 0.2 (0) | 6.9 (0.3) | 19.9 (0.8) | 86.1 (3.4) | 103.4 (4.1) | 146.8 (5.8) | 163.4 (6.4) | 124.4 (4.9) | 75.6 (3) | 4.9 (0.2) | 0 (0) | | 731.6 (28.8) |
 | Precipitation Litres/m² (Gallons/ft²) | 0 (0) | 0.2 (0) | 6.9 (0.17) | 19.9 (0.49) | 86.1 (2.11) | 103.4 (2.54) | 146.8 (3.6) | 163.4 (4.01) | 124.4 (3.05) | 75.6 (1.85) | 4.9 (0.12) | 0 (0) | | 731.6 (17.94) |
 | Number of Wet Days (probability of rain on a day) | 0 (0%) | 0 (0%) | 1 (3%) | 4 (13%) | 9 (29%) | 10 (33%) | 16 (52%) | 17 (55%) | 13 (43%) | 8 (26%) | 1 (3%) | 0 (0%) | | 79 (21%) |
 | Percentage of Sunny (Cloudy) Daylight Hours | 86 (14) | 72 (28) | 75 (25) | 64 (36) | 63 (37) | 40 (60) | 40 (60) | 44 (56) | 47 (53) | 62 (38) | 80 (20) | 86 (14) | | 64 (36) |