| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 135 (High) | 0 (Low) | 7 (Low) | 0 (Low) | 0 (Low) |
| February | 759 (Very high) | 0 (Low) | 20 (Low) | 0 (Low) | 0 (Low) |
| March | 79 (Medium) | 628 (Very high) | 10 (Low) | 1 (Low) | 3 (Low) |
| April | — | — | — | — | — |
| May | 11 (Low) | 1 (Low) | 188 (Very high) | 36 (Medium) | 835 (Very high) |
| June | 5 (Low) | 0 (Low) | 139 (High) | 12 (Low) | 51 (Medium) |
| July | 2 (Low) | 1 (Low) | 42 (Medium) | 3 (Low) | 10 (Low) |
| August | 1 (Low) | 1 (Low) | 6 (Low) | 1 (Low) | 2 (Low) |
| September | 14 (Low) | 1 (Low) | 5 (Low) | 0 (Low) | 3 (Low) |
| October | 17 (Low) | 9 (Low) | 5 (Low) | 2 (Low) | 3 (Low) |
| November | 43 (Medium) | 0 (Low) | 1 (Low) | 1 (Low) | 1 (Low) |
| December | 385 (Very high) | 0 (Low) | 2 (Low) | 1 (Low) | 0 (Low) |