 | Average Precipitation mm (in) | 3.6 (0.14) | 11.6 (0.5) | 44.9 (1.8) | 91.9 (3.6) | 148.5 (5.8) | 119.7 (4.7) | 136.2 (5.4) | 144.4 (5.7) | 116.6 (4.6) | 101.7 (4) | 46.3 (1.8) | 7 (0.3) | | 972.4 (38.3) |
 | Precipitation Litres/m² (Gallons/ft²) | 3.6 (0.09) | 11.6 (0.28) | 44.9 (1.1) | 91.9 (2.25) | 148.5 (3.64) | 119.7 (2.94) | 136.2 (3.34) | 144.4 (3.54) | 116.6 (2.86) | 101.7 (2.49) | 46.3 (1.14) | 7 (0.17) | | 972.4 (23.85) |
 | Number of Wet Days (probability of rain on a day) | 1 (3%) | 2 (7%) | 8 (26%) | 11 (37%) | 13 (42%) | 11 (37%) | 13 (42%) | 13 (42%) | 11 (37%) | 11 (35%) | 7 (23%) | 3 (10%) | | 104 (28%) |
 | Percentage of Sunny (Cloudy) Daylight Hours | 80 (20) | 64 (36) | 60 (40) | 52 (48) | 64 (36) | 59 (41) | 48 (52) | 57 (43) | 61 (39) | 64 (36) | 64 (36) | 78 (22) | | 64 (36) |