| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 0 (Low) | 0 (Low) | 49 (Medium) | 0 (Low) | 0 (Low) |
| February | 0 (Low) | 0 (Low) | 58 (Medium) | 0 (Low) | 0 (Low) |
| March | 5 (Low) | 281 (High) | 10 (Low) | 96 (High) | 0 (Low) |
| April | 10 (Low) | 15 (Low) | 5 (Low) | 23 (Medium) | 3 (Low) |
| May | 25 (Low) | 0 (Low) | 95 (High) | 36 (Medium) | 158 (Medium) |
| June | 21 (Low) | 0 (Low) | 64 (Medium) | 32 (Medium) | 119 (Medium) |
| July | 1 (Low) | 1 (Low) | 38 (Medium) | 2 (Low) | 8 (Low) |
| August | 1 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 4 (Low) |
| September | 2 (Low) | 0 (Low) | 2 (Low) | 2 (Low) | 4 (Low) |
| October | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |
| November | 220 (Very high) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |
| December | 1,030 (Very high) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) |