 | Average Precipitation mm (in) | 12.2 (0.48) | 14.5 (0.6) | 29.2 (1.1) | 52.8 (2.1) | 58.9 (2.3) | 37.1 (1.5) | 20.6 (0.8) | 13.5 (0.5) | 27.9 (1.1) | 28.7 (1.1) | 20.3 (0.8) | 14.7 (0.6) | | 330.4 (13) |
 | Precipitation Litres/m² (Gallons/ft²) | 12.2 (0.3) | 14.5 (0.36) | 29.2 (0.72) | 52.8 (1.3) | 58.9 (1.44) | 37.1 (0.91) | 20.6 (0.51) | 13.5 (0.33) | 27.9 (0.68) | 28.7 (0.7) | 20.3 (0.5) | 14.7 (0.36) | | 330.4 (8.1) |
 | Number of Wet Days (probability of rain on a day) | 4 (13%) | 5 (18%) | 7 (23%) | 8 (27%) | 9 (29%) | 6 (20%) | 6 (19%) | 5 (16%) | 5 (17%) | 5 (16%) | 5 (17%) | 4 (13%) | | 69 (19%) |
 | Percentage of Sunny (Cloudy) Daylight Hours | 69 (31) | 64 (36) | 73 (27) | 67 (33) | 67 (33) | 76 (24) | 78 (22) | 76 (24) | 75 (25) | 73 (27) | 62 (38) | 72 (28) | | 73 (27) |