| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 29 (Low) | 0 (Low) | 14 (Low) | 0 (Low) | 0 (Low) |
| February | 12 (Low) | 0 (Low) | 11 (Low) | 0 (Low) | 0 (Low) |
| March | 15 (Low) | 237 (High) | 4 (Low) | 1 (Low) | 0 (Low) |
| April | 6 (Low) | 25 (Low) | 3 (Low) | 3 (Low) | 4 (Low) |
| May | 1 (Low) | 2 (Low) | 15 (Low) | 9 (Low) | 64 (Medium) |
| June | 1 (Low) | 0 (Low) | 12 (Low) | 4 (Low) | 18 (Low) |
| July | 1 (Low) | 0 (Low) | 3 (Low) | 2 (Low) | 0 (Low) |
| August | 1 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 2 (Low) |
| September | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) |
| October | 3 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 3 (Low) |
| November | 10 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) |
| December | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) |