| Average Precipitation mm (in) | 147.8 (5.82) | 117.7 (4.6) | 75.3 (3) | 24 (0.9) | 14 (0.6) | 2.9 (0.1) | 0.1 (0) | 0.1 (0) | 7.1 (0.3) | 64.3 (2.5) | 88.4 (3.5) | 145.3 (5.7) | | 687 (27) |
| Precipitation Litres/m² (Gallons/ft²) | 147.8 (3.63) | 117.7 (2.89) | 75.3 (1.85) | 24 (0.59) | 14 (0.34) | 2.9 (0.07) | 0.1 (0) | 0.1 (0) | 7.1 (0.17) | 64.3 (1.58) | 88.4 (2.17) | 145.3 (3.56) | | 687 (16.85) |
| Number of Wet Days (probability of rain on a day) | 19 (61%) | 13 (46%) | 12 (39%) | 7 (23%) | 5 (16%) | 1 (3%) | 0 (0%) | 0 (0%) | 2 (7%) | 8 (26%) | 10 (33%) | 18 (58%) | | 95 (26%) |
| Percentage of Sunny (Cloudy) Daylight Hours | 45 (55) | 45 (55) | 58 (42) | 65 (35) | 73 (27) | 78 (22) | 88 (12) | 92 (8) | 85 (15) | 71 (29) | 61 (39) | 45 (55) | | 70 (30) |