| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 15 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) |
| February | 221 (Very high) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) |
| March | 554 (Very high) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) |
| April | 3 (Low) | 3 (Low) | 29 (Low) | 91 (High) | 3 (Low) |
| May | 12 (Low) | 0 (Low) | 192 (Very high) | 135 (Very high) | 675 (Very high) |
| June | 5 (Low) | 1 (Low) | 51 (Medium) | 9 (Low) | 149 (Medium) |
| July | 0 (Low) | 0 (Low) | 10 (Low) | 2 (Low) | 2 (Low) |
| August | 2 (Low) | 0 (Low) | 7 (Low) | 1 (Low) | 3 (Low) |
| September | 1 (Low) | 1 (Low) | 2 (Low) | 2 (Low) | 2 (Low) |
| October | — | — | — | — | — |
| November | — | — | — | — | — |
| December | — | — | — | — | — |