| Average Precipitation mm (in) | 200.4 (7.9) | 117.5 (4.6) | 89.1 (3.5) | 96 (3.8) | 37.9 (1.5) | 23 (0.9) | 23.5 (0.9) | 23 (0.9) | 31.6 (1.2) | 98.9 (3.9) | 135.1 (5.3) | 136.3 (5.4) | | 1012.3 (39.9) |
| Precipitation Litres/m² (Gallons/ft²) | 200.4 (4.92) | 117.5 (2.88) | 89.1 (2.19) | 96 (2.35) | 37.9 (0.93) | 23 (0.56) | 23.5 (0.58) | 23 (0.56) | 31.6 (0.78) | 98.9 (2.43) | 135.1 (3.31) | 136.3 (3.34) | | 1012.3 (24.83) |
| Number of Wet Days (probability of rain on a day) | 22 (71%) | 22 (71%) | 18 (60%) | 17 (55%) | 12 (40%) | 10 (32%) | 9 (29%) | 7 (25%) | 11 (35%) | 14 (47%) | 19 (61%) | 20 (67%) | | 181 (49%) |
| Percentage of Sunny (Cloudy) Daylight Hours | 39 (61) | 42 (58) | 44 (56) | 47 (53) | 45 (55) | 49 (51) | 50 (50) | 47 (53) | 50 (50) | 42 (58) | 44 (56) | 32 (68) | | 46 (54) |