| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 10 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) |
| February | 45 (Medium) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |
| March | 58 (Medium) | 418 (Very high) | 4 (Low) | 1 (Low) | 1 (Low) |
| April | 3 (Low) | 24 (Low) | 2 (Low) | 4 (Low) | 1 (Low) |
| May | 3 (Low) | 4 (Low) | 115 (High) | 9 (Low) | 414 (Very high) |
| June | 11 (Low) | 6 (Low) | 70 (Medium) | 12 (Low) | 80 (Medium) |
| July | 2 (Low) | 14 (Low) | 31 (Medium) | 4 (Low) | 9 (Low) |
| August | 1 (Low) | 2 (Low) | 6 (Low) | 2 (Low) | 6 (Low) |
| September | 1 (Low) | 4 (Low) | 5 (Low) | 1 (Low) | 2 (Low) |
| October | 6 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 1 (Low) |
| November | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) |
| December | 3 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |