| Average Precipitation mm (in) | 86.9 (3.42) | 91.7 (3.6) | 124.7 (4.9) | 139.4 (5.5) | 131.3 (5.2) | 90.7 (3.6) | 91.4 (3.6) | 82.8 (3.3) | 102.9 (4.1) | 95.3 (3.8) | 132.1 (5.2) | 122.7 (4.8) | | 1291.9 (50.9) |
| Precipitation Litres/m² (Gallons/ft²) | 86.9 (2.13) | 91.7 (2.25) | 124.7 (3.06) | 139.4 (3.42) | 131.3 (3.22) | 90.7 (2.22) | 91.4 (2.24) | 82.8 (2.03) | 102.9 (2.52) | 95.3 (2.34) | 132.1 (3.24) | 122.7 (3.01) | | 1291.9 (31.69) |
| Number of Wet Days (probability of rain on a day) | 10 (32%) | 10 (35%) | 10 (32%) | 10 (33%) | 10 (32%) | 9 (30%) | 8 (26%) | 7 (23%) | 7 (23%) | 6 (19%) | 8 (27%) | 9 (29%) | | 104 (29%) |
| Percentage of Sunny (Cloudy) Daylight Hours | 39 (61) | 46 (54) | 55 (45) | 58 (42) | 63 (37) | 71 (29) | 68 (32) | 75 (25) | 71 (29) | 73 (27) | 59 (41) | 50 (50) | | 63 (37) |