 | Average Precipitation mm (in) | 37 (1.46) | 27 (1.1) | 25 (1) | 28 (1.1) | 36 (1.4) | 36 (1.4) | 56 (2.2) | 55 (2.2) | 47 (1.9) | 43 (1.7) | 43 (1.7) | 38 (1.5) | | 471 (18.5) |
 | Precipitation Litres/m² (Gallons/ft²) | 37 (0.91) | 27 (0.66) | 25 (0.61) | 28 (0.69) | 36 (0.88) | 36 (0.88) | 56 (1.37) | 55 (1.35) | 47 (1.15) | 43 (1.05) | 43 (1.05) | 38 (0.93) | | 471 (11.55) |
 | Number of Wet Days (probability of rain on a day) | 14 (45%) | 12 (42%) | 10 (32%) | 10 (33%) | 10 (32%) | 10 (33%) | 12 (39%) | 12 (39%) | 11 (37%) | 12 (39%) | 13 (43%) | 14 (45%) | | 140 (38%) |
 | Percentage of Sunny (Cloudy) Daylight Hours | 17 (83) | 21 (79) | 35 (65) | 42 (58) | 52 (48) | 53 (47) | 54 (46) | 53 (47) | 47 (53) | 33 (67) | 17 (83) | 14 (86) | | 42 (58) |