| Average Precipitation mm (in) | 115.8 (4.56) | 120.4 (4.7) | 121.7 (4.8) | 87.9 (3.5) | 90.7 (3.6) | 90.9 (3.6) | 109.2 (4.3) | 92.2 (3.6) | 70.6 (2.8) | 55.4 (2.2) | 69.3 (2.7) | 109.5 (4.3) | | 1133.6 (44.6) |
| Precipitation Litres/m² (Gallons/ft²) | 115.8 (2.84) | 120.4 (2.95) | 121.7 (2.99) | 87.9 (2.16) | 90.7 (2.22) | 90.9 (2.23) | 109.2 (2.68) | 92.2 (2.26) | 70.6 (1.73) | 55.4 (1.36) | 69.3 (1.7) | 109.5 (2.69) | | 1133.6 (27.8) |
| Number of Wet Days (probability of rain on a day) | 10 (32%) | 10 (35%) | 11 (35%) | 9 (30%) | 8 (26%) | 10 (33%) | 13 (42%) | 11 (35%) | 8 (27%) | 6 (19%) | 7 (23%) | 10 (32%) | | 113 (31%) |
| Percentage of Sunny (Cloudy) Daylight Hours | 59 (41) | 53 (47) | 61 (39) | 69 (31) | 70 (30) | 70 (30) | 64 (36) | 75 (25) | 63 (37) | 67 (33) | 65 (35) | 58 (42) | | 66 (34) |