 | Average Precipitation mm (in) | 9.1 (0.36) | 10.9 (0.4) | 30.5 (1.2) | 50.5 (2) | 87.1 (3.4) | 85.6 (3.4) | 77.7 (3.1) | 44.2 (1.7) | 40.9 (1.6) | 24.9 (1) | 16.8 (0.7) | 11.9 (0.5) | | 490.1 (19.3) |
 | Precipitation Litres/m² (Gallons/ft²) | 9.1 (0.22) | 10.9 (0.27) | 30.5 (0.75) | 50.5 (1.24) | 87.1 (2.14) | 85.6 (2.1) | 77.7 (1.91) | 44.2 (1.08) | 40.9 (1) | 24.9 (0.61) | 16.8 (0.41) | 11.9 (0.29) | | 490.1 (12.02) |
 | Number of Wet Days (probability of rain on a day) | 5 (16%) | 6 (21%) | 7 (23%) | 8 (27%) | 11 (35%) | 10 (33%) | 9 (29%) | 9 (29%) | 6 (20%) | 4 (13%) | 4 (13%) | 4 (13%) | | 83 (23%) |
 | Percentage of Sunny (Cloudy) Daylight Hours | 58 (42) | 52 (48) | 56 (44) | 60 (40) | 61 (39) | 68 (32) | 73 (27) | 71 (29) | 71 (29) | 72 (28) | 60 (40) | 64 (36) | | 65 (35) |