| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 755 (Very high) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) |
| February | 357 (Very high) | 0 (Low) | 12 (Low) | 1 (Low) | 0 (Low) |
| March | 207 (Very high) | 439 (Very high) | 15 (Low) | 1 (Low) | 0 (Low) |
| April | 21 (Low) | 420 (Very high) | 11 (Low) | 13 (Low) | 1 (Low) |
| May | 16 (Low) | 34 (Medium) | 185 (Very high) | 39 (Medium) | 86 (Medium) |
| June | 7 (Low) | 3 (Low) | 83 (Medium) | 13 (Low) | 89 (Medium) |
| July | 2 (Low) | 1 (Low) | 45 (Medium) | 4 (Low) | 5 (Low) |
| August | 2 (Low) | 0 (Low) | 4 (Low) | 2 (Low) | 2 (Low) |
| September | 1 (Low) | 1 (Low) | 5 (Low) | 2 (Low) | 2 (Low) |
| October | 7 (Low) | 1 (Low) | 1 (Low) | 1 (Low) | 1 (Low) |
| November | 17 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) |
| December | 74 (Medium) | 1 (Low) | 7 (Low) | 0 (Low) | 0 (Low) |