 | Average Precipitation mm (in) | 56.7 (2.23) | 40.2 (1.6) | 42.6 (1.7) | 37.1 (1.5) | 53 (2.1) | 71 (2.8) | 79.9 (3.1) | 90.1 (3.5) | 89.2 (3.5) | 79 (3.1) | 90.8 (3.6) | 72.5 (2.9) | | 802.1 (31.6) |
 | Precipitation Litres/m² (Gallons/ft²) | 56.7 (1.39) | 40.2 (0.99) | 42.6 (1.04) | 37.1 (0.91) | 53 (1.3) | 71 (1.74) | 79.9 (1.96) | 90.1 (2.21) | 89.2 (2.19) | 79 (1.94) | 90.8 (2.23) | 72.5 (1.78) | | 802.1 (19.67) |
 | Number of Wet Days (probability of rain on a day) | 18 (58%) | 16 (57%) | 15 (48%) | 14 (47%) | 13 (42%) | 13 (43%) | 15 (48%) | 16 (52%) | 16 (53%) | 17 (55%) | 18 (60%) | 19 (61%) | | 190 (52%) |
 | Percentage of Sunny (Cloudy) Daylight Hours | 18 (82) | 20 (80) | 36 (64) | 43 (57) | 52 (48) | 53 (47) | 49 (51) | 51 (49) | 47 (53) | 34 (66) | 15 (85) | 14 (86) | | 41 (59) |