| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 14 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) |
| February | 158 (High) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |
| March | 722 (Very high) | 3,720 (Very high) | 10 (Low) | 9 (Low) | 6 (Low) |
| April | 18 (Low) | 892 (Very high) | 13 (Low) | 19 (Low) | 2 (Low) |
| May | 12 (Low) | 11 (Low) | 69 (Medium) | 20 (Medium) | 150 (Medium) |
| June | 4 (Low) | 3 (Low) | 46 (Medium) | 8 (Low) | 56 (Medium) |
| July | 2 (Low) | 14 (Low) | 35 (Medium) | 5 (Low) | 7 (Low) |
| August | 3 (Low) | 2 (Low) | 6 (Low) | 2 (Low) | 3 (Low) |
| September | 2 (Low) | 2 (Low) | 8 (Low) | 2 (Low) | 3 (Low) |
| October | 12 (Low) | 3 (Low) | 4 (Low) | 2 (Low) | 1 (Low) |
| November | 7 (Low) | 1 (Low) | 2 (Low) | 1 (Low) | 1 (Low) |
| December | 7 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 1 (Low) |