 | Average Precipitation mm (in) | 0 (0) | 0.5 (0) | 0.4 (0) | 1.4 (0.1) | 8.4 (0.3) | 22.5 (0.9) | 98.2 (3.9) | 110.6 (4.4) | 61.7 (2.4) | 14.5 (0.6) | 0.3 (0) | 0 (0) | | 318.5 (12.5) |
 | Precipitation Litres/m² (Gallons/ft²) | 0 (0) | 0.5 (0.01) | 0.4 (0.01) | 1.4 (0.03) | 8.4 (0.21) | 22.5 (0.55) | 98.2 (2.41) | 110.6 (2.71) | 61.7 (1.51) | 14.5 (0.36) | 0.3 (0.01) | 0 (0) | | 318.5 (7.81) |
 | Number of Wet Days (probability of rain on a day) | 0 (0%) | 0.5 (2%) | 0.5 (2%) | 1 (3%) | 2 (6%) | 5 (17%) | 11 (35%) | 13 (42%) | 7 (23%) | 3 (10%) | 0 (0%) | 0 (0%) | | 43 (12%) |
 | Percentage of Sunny (Cloudy) Daylight Hours | 92 (8) | 83 (17) | 83 (17) | 81 (19) | 77 (23) | 63 (37) | 58 (42) | 54 (46) | 67 (33) | 81 (19) | 90 (10) | 95 (5) | | 78 (22) |