 | Average Precipitation mm (in) | 11.9 (0.47) | 10.2 (0.4) | 9.4 (0.4) | 8.1 (0.3) | 15.5 (0.6) | 34.8 (1.4) | 47.5 (1.9) | 49.8 (2) | 24.1 (0.9) | 22.9 (0.9) | 20.3 (0.8) | 21.6 (0.9) | | 276.1 (10.9) |
 | Precipitation Litres/m² (Gallons/ft²) | 11.9 (0.29) | 10.2 (0.25) | 9.4 (0.23) | 8.1 (0.2) | 15.5 (0.38) | 34.8 (0.85) | 47.5 (1.17) | 49.8 (1.22) | 24.1 (0.59) | 22.9 (0.56) | 20.3 (0.5) | 21.6 (0.53) | | 276.1 (6.77) |
 | Number of Wet Days (probability of rain on a day) | 9 (29%) | 7 (25%) | 6 (19%) | 4 (13%) | 7 (23%) | 10 (33%) | 13 (42%) | 14 (45%) | 10 (33%) | 11 (35%) | 9 (30%) | 8 (26%) | | 108 (30%) |
 | Percentage of Sunny (Cloudy) Daylight Hours | 37 (63) | 49 (51) | 64 (36) | 66 (34) | 56 (44) | 52 (48) | 45 (55) | 33 (67) | 31 (69) | 30 (70) | 40 (60) | 35 (65) | | 48 (52) |