| Average Precipitation mm (in) | 10.2 (0.4) | 10.4 (0.4) | 7.4 (0.3) | 5.1 (0.2) | 6.4 (0.3) | 17 (0.7) | 39.1 (1.5) | 40.1 (1.6) | 43.2 (1.7) | 19.3 (0.8) | 11.2 (0.4) | 14.5 (0.6) | | 223.9 (8.8) |
| Precipitation Litres/m² (Gallons/ft²) | 10.2 (0.25) | 10.4 (0.26) | 7.4 (0.18) | 5.1 (0.13) | 6.4 (0.16) | 17 (0.42) | 39.1 (0.96) | 40.1 (0.98) | 43.2 (1.06) | 19.3 (0.47) | 11.2 (0.27) | 14.5 (0.36) | | 223.9 (5.49) |
| Number of Wet Days (probability of rain on a day) | 3 (10%) | 3 (11%) | 2 (6%) | 2 (7%) | 2 (6%) | 4 (13%) | 7 (23%) | 7 (23%) | 5 (17%) | 4 (13%) | 2 (7%) | 4 (13%) | | 45 (12%) |
| Percentage of Sunny (Cloudy) Daylight Hours | 80 (20) | 74 (26) | 84 (16) | 85 (15) | 89 (11) | 87 (13) | 79 (21) | 83 (17) | 86 (14) | 85 (15) | 83 (17) | 83 (17) | | 85 (15) |