| Average Precipitation mm (in) | 8 (0.31) | 4 (0.2) | 9 (0.4) | 23 (0.9) | 57 (2.2) | 111 (4.4) | 160 (6.3) | 149 (5.9) | 119 (4.7) | 46 (1.8) | 16 (0.6) | 7 (0.3) | | 709 (27.9) |
| Precipitation Litres/m² (Gallons/ft²) | 8 (0.2) | 4 (0.1) | 9 (0.22) | 23 (0.56) | 57 (1.4) | 111 (2.72) | 160 (3.92) | 149 (3.65) | 119 (2.92) | 46 (1.13) | 16 (0.39) | 7 (0.17) | | 709 (17.39) |
| Number of Wet Days (probability of rain on a day) | 2 (6%) | 3 (11%) | 4 (13%) | 6 (20%) | 14 (45%) | 17 (57%) | 22 (71%) | 22 (71%) | 20 (67%) | 11 (35%) | 3 (10%) | 3 (10%) | | 127 (35%) |
| Percentage of Sunny (Cloudy) Daylight Hours | 66 (34) | 64 (36) | 71 (29) | 63 (37) | 60 (40) | 52 (48) | 48 (52) | 51 (49) | 45 (55) | 54 (46) | 61 (39) | 67 (33) | | 59 (41) |