| Average Precipitation mm (in) | 8.1 (0.32) | 7.9 (0.3) | 19.8 (0.8) | 22.4 (0.9) | 31.8 (1.3) | 31.8 (1.3) | 53.1 (2.1) | 50.5 (2) | 22.9 (0.9) | 14.5 (0.6) | 10.9 (0.4) | 10.7 (0.4) | | 284.4 (11.2) |
| Precipitation Litres/m² (Gallons/ft²) | 8.1 (0.2) | 7.9 (0.19) | 19.8 (0.49) | 22.4 (0.55) | 31.8 (0.78) | 31.8 (0.78) | 53.1 (1.3) | 50.5 (1.24) | 22.9 (0.56) | 14.5 (0.36) | 10.9 (0.27) | 10.7 (0.26) | | 284.4 (6.98) |
| Number of Wet Days (probability of rain on a day) | 5 (16%) | 5 (18%) | 6 (19%) | 7 (23%) | 9 (29%) | 7 (23%) | 8 (26%) | 8 (26%) | 4 (13%) | 4 (13%) | 3 (10%) | 3 (10%) | | 69 (19%) |
| Percentage of Sunny (Cloudy) Daylight Hours | 78 (22) | 69 (31) | 72 (28) | 69 (31) | 68 (32) | 79 (21) | 79 (21) | 80 (20) | 78 (22) | 81 (19) | 77 (23) | 77 (23) | | 77 (23) |