| Average Precipitation mm (in) | 160 (6.3) | 175 (6.9) | 169 (6.7) | 151 (5.9) | 128 (5) | 127 (5) | 93 (3.7) | 113 (4.4) | 121 (4.8) | 129 (5.1) | 155 (6.1) | 160 (6.3) | | 1681 (66.2) |
| Precipitation Litres/m² (Gallons/ft²) | 160 (3.92) | 175 (4.29) | 169 (4.15) | 151 (3.7) | 128 (3.14) | 127 (3.12) | 93 (2.28) | 113 (2.77) | 121 (2.97) | 129 (3.16) | 155 (3.8) | 160 (3.92) | | 1681 (41.23) |
| Number of Wet Days (probability of rain on a day) | 25 (81%) | 26 (84%) | 24 (80%) | 22 (71%) | 18 (60%) | 19 (61%) | 18 (58%) | 16 (57%) | 17 (55%) | 20 (67%) | 23 (74%) | 23 (77%) | | 251 (69%) |
| Percentage of Sunny (Cloudy) Daylight Hours | 34 (66) | 32 (68) | 33 (67) | 33 (67) | 32 (68) | 29 (71) | 31 (69) | 35 (65) | 38 (62) | 38 (62) | 35 (65) | 34 (66) | | 34 (66) |