| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 445 (Very high) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) |
| February | 209 (Very high) | 0 (Low) | 4 (Low) | 1 (Low) | 0 (Low) |
| March | 257 (Very high) | 2 (Low) | 14 (Low) | 1 (Low) | 0 (Low) |
| April | 11 (Low) | 169 (High) | 13 (Low) | 25 (Medium) | 3 (Low) |
| May | 28 (Low) | 2 (Low) | 99 (High) | 68 (High) | 117 (Medium) |
| June | 13 (Low) | 1 (Low) | 77 (Medium) | 58 (High) | 101 (Medium) |
| July | 23 (Low) | 0 (Low) | 11 (Low) | 4 (Low) | 2 (Low) |
| August | 2 (Low) | 0 (Low) | 16 (Low) | 1 (Low) | 3 (Low) |
| September | 2 (Low) | 0 (Low) | 181 (Very high) | 2 (Low) | 1 (Low) |
| October | 33 (Medium) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) |
| November | 186 (High) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) |
| December | 440 (Very high) | 0 (Low) | 4 (Low) | 1 (Low) | 0 (Low) |