| Average Precipitation mm (in) | 110 (4.33) | 76 (3) | 68 (2.7) | 65 (2.6) | 68 (2.7) | 84 (3.3) | 105 (4.1) | 98 (3.9) | 107 (4.2) | 110 (4.3) | 111 (4.4) | 129 (5.1) | | 1131 (44.5) |
| Precipitation Litres/m² (Gallons/ft²) | 110 (2.7) | 76 (1.86) | 68 (1.67) | 65 (1.59) | 68 (1.67) | 84 (2.06) | 105 (2.58) | 98 (2.4) | 107 (2.62) | 110 (2.7) | 111 (2.72) | 129 (3.16) | | 1131 (27.74) |
| Number of Wet Days (probability of rain on a day) | 19 (61%) | 15 (53%) | 14 (45%) | 14 (47%) | 14 (45%) | 15 (50%) | 18 (58%) | 16 (52%) | 17 (57%) | 17 (55%) | 17 (57%) | 20 (65%) | | 196 (54%) |
| Percentage of Sunny (Cloudy) Daylight Hours | 19 (81) | 22 (78) | 27 (73) | 32 (68) | 39 (61) | 31 (69) | 24 (76) | 28 (72) | 26 (74) | 23 (77) | 20 (80) | 16 (84) | | 27 (73) |