| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 529 (Very high) | 0 (Low) | 4 (Low) | 1 (Low) | 0 (Low) |
| February | 525 (Very high) | 0 (Low) | 24 (Low) | 0 (Low) | 0 (Low) |
| March | 1,064 (Very high) | 586 (Very high) | 16 (Low) | 4 (Low) | 0 (Low) |
| April | 14 (Low) | 42 (Medium) | 6 (Low) | 14 (Low) | 5 (Low) |
| May | 27 (Low) | 6 (Low) | 183 (Very high) | 70 (High) | 569 (Very high) |
| June | 19 (Low) | 2 (Low) | 58 (Medium) | 12 (Low) | 70 (Medium) |
| July | 1 (Low) | 0 (Low) | 19 (Low) | 5 (Low) | 6 (Low) |
| August | 2 (Low) | 1 (Low) | 6 (Low) | 3 (Low) | 2 (Low) |
| September | 1 (Low) | 0 (Low) | 5 (Low) | 2 (Low) | 1 (Low) |
| October | 20 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 1 (Low) |
| November | 9 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) |
| December | 36 (Medium) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |