| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 28 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) |
| February | 6 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |
| March | 19 (Low) | 103 (High) | 2 (Low) | 0 (Low) | 0 (Low) |
| April | 1 (Low) | 31 (Medium) | 6 (Low) | 3 (Low) | 3 (Low) |
| May | 21 (Low) | 3 (Low) | 363 (Very high) | 73 (High) | 372 (High) |
| June | 2 (Low) | 11 (Low) | 100 (High) | 14 (Low) | 216 (High) |
| July | 5 (Low) | 0 (Low) | 18 (Low) | 3 (Low) | 4 (Low) |
| August | 3 (Low) | 1 (Low) | 2 (Low) | 2 (Low) | 2 (Low) |
| September | 1 (Low) | 1 (Low) | 4 (Low) | 6 (Low) | 1 (Low) |
| October | 5 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) |
| November | 17 (Low) | 7 (Low) | 4 (Low) | 0 (Low) | 0 (Low) |
| December | 26 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) |