| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 578 (Very high) | 0 (Low) | 7 (Low) | 0 (Low) | 0 (Low) |
| February | 1,145 (Very high) | 0 (Low) | 19 (Low) | 6 (Low) | 0 (Low) |
| March | 744 (Very high) | 2,638 (Very high) | 12 (Low) | 4 (Low) | 0 (Low) |
| April | 11 (Low) | 557 (Very high) | 12 (Low) | 15 (Low) | 0 (Low) |
| May | 32 (Medium) | 3 (Low) | 120 (High) | 55 (High) | 133 (Medium) |
| June | 5 (Low) | 1 (Low) | 70 (Medium) | 12 (Low) | 115 (Medium) |
| July | 2 (Low) | 1 (Low) | 10 (Low) | 2 (Low) | 6 (Low) |
| August | — | — | — | — | — |
| September | 1 (Low) | 2 (Low) | 5 (Low) | 2 (Low) | 4 (Low) |
| October | 2 (Low) | 2 (Low) | 2 (Low) | 0 (Low) | 0 (Low) |
| November | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) |
| December | 11 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |