| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 1,228 (Very high) | 0 (Low) | 7 (Low) | 0 (Low) | 0 (Low) |
| February | 142 (High) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) |
| March | 238 (Very high) | 3 (Low) | 3 (Low) | 0 (Low) | 0 (Low) |
| April | 3 (Low) | 28 (Low) | 9 (Low) | 12 (Low) | 0 (Low) |
| May | 7 (Low) | 5 (Low) | 79 (Medium) | 36 (Medium) | 11 (Low) |
| June | 9 (Low) | 0 (Low) | 88 (High) | 23 (Medium) | 64 (Medium) |
| July | 1 (Low) | 3 (Low) | 7 (Low) | 2 (Low) | 2 (Low) |
| August | 1 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 0 (Low) |
| September | 2 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 1 (Low) |
| October | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |
| November | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |
| December | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) |