| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 955 (Very high) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) |
| February | 710 (Very high) | 0 (Low) | 15 (Low) | 0 (Low) | 0 (Low) |
| March | 460 (Very high) | 1,919 (Very high) | 22 (Low) | 1 (Low) | 0 (Low) |
| April | 9 (Low) | 1,485 (Very high) | 16 (Low) | 43 (Medium) | 4 (Low) |
| May | 9 (Low) | 8 (Low) | 204 (Very high) | 55 (High) | 85 (Medium) |
| June | 36 (Medium) | 37 (Medium) | 205 (Very high) | 94 (High) | 119 (Medium) |
| July | 5 (Low) | 0 (Low) | 199 (Very high) | 16 (Low) | 9 (Low) |
| August | 2 (Low) | 1 (Low) | 7 (Low) | 4 (Low) | 3 (Low) |
| September | 2 (Low) | 3 (Low) | 3 (Low) | 1 (Low) | 1 (Low) |
| October | 37 (Medium) | 3 (Low) | 3 (Low) | 2 (Low) | 0 (Low) |
| November | 1 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) |
| December | 64 (Medium) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |