| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 23 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) |
| February | 56 (Medium) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) |
| March | 28 (Low) | 7 (Low) | 4 (Low) | 1 (Low) | 0 (Low) |
| April | 8 (Low) | 156 (High) | 10 (Low) | 5 (Low) | 0 (Low) |
| May | 11 (Low) | 31 (Medium) | 22 (Low) | 5 (Low) | 480 (Very high) |
| June | 6 (Low) | 12 (Low) | 19 (Low) | 3 (Low) | 63 (Medium) |
| July | 3 (Low) | 0 (Low) | 9 (Low) | 2 (Low) | 6 (Low) |
| August | 1 (Low) | 1 (Low) | 3 (Low) | 1 (Low) | 3 (Low) |
| September | 2 (Low) | 0 (Low) | 1 (Low) | 5 (Low) | 2 (Low) |
| October | 3 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 1 (Low) |
| November | 2 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) |
| December | 3 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |