| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 739 (Very high) | 1 (Low) | 5 (Low) | 1 (Low) | 0 (Low) |
| February | 2,826 (Very high) | 0 (Low) | 9 (Low) | 7 (Low) | 0 (Low) |
| March | 881 (Very high) | 2,906 (Very high) | 12 (Low) | 5 (Low) | 0 (Low) |
| April | 33 (Medium) | 638 (Very high) | 15 (Low) | 14 (Low) | 0 (Low) |
| May | 60 (Medium) | 18 (Low) | 176 (Very high) | 114 (Very high) | 71 (Medium) |
| June | 50 (Medium) | 2 (Low) | 59 (Medium) | 23 (Medium) | 137 (Medium) |
| July | 12 (Low) | 1 (Low) | 15 (Low) | 7 (Low) | 10 (Low) |
| August | 4 (Low) | 2 (Low) | 7 (Low) | 7 (Low) | 3 (Low) |
| September | 3 (Low) | 1 (Low) | 9 (Low) | 3 (Low) | 1 (Low) |
| October | 22 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 1 (Low) |
| November | 4 (Low) | 1 (Low) | 1 (Low) | 1 (Low) | 1 (Low) |
| December | 22 (Low) | 0 (Low) | 7 (Low) | 0 (Low) | 0 (Low) |