| Average Precipitation mm (in) | 12.7 (0.5) | 15.5 (0.6) | 24.4 (1) | 25.1 (1) | 63 (2.5) | 94 (3.7) | 66.5 (2.6) | 81.8 (3.2) | 50.5 (2) | 34.8 (1.4) | 17.5 (0.7) | 10.9 (0.4) | | 496.7 (19.6) |
| Precipitation Litres/m² (Gallons/ft²) | 12.7 (0.31) | 15.5 (0.38) | 24.4 (0.6) | 25.1 (0.62) | 63 (1.55) | 94 (2.31) | 66.5 (1.63) | 81.8 (2.01) | 50.5 (1.24) | 34.8 (0.85) | 17.5 (0.43) | 10.9 (0.27) | | 496.7 (12.18) |
| Number of Wet Days (probability of rain on a day) | 4 (13%) | 5 (18%) | 4 (13%) | 6 (20%) | 9 (29%) | 7 (23%) | 8 (26%) | 8 (26%) | 5 (17%) | 5 (16%) | 3 (10%) | 3 (10%) | | 67 (18%) |
| Percentage of Sunny (Cloudy) Daylight Hours | 73 (27) | 66 (34) | 73 (27) | 73 (27) | 72 (28) | 78 (22) | 78 (22) | 81 (19) | 79 (21) | 79 (21) | 79 (21) | 76 (24) | | 77 (23) |