| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | — | — | — | — | — |
| February | — | — | — | — | — |
| March | — | — | — | — | — |
| April | 21 (Low) | 8 (Low) | 14 (Low) | 65 (High) | 17 (Low) |
| May | 8 (Low) | 1 (Low) | 173 (Very high) | 241 (Very high) | 114 (Medium) |
| June | 21 (Low) | 1 (Low) | 131 (High) | 90 (High) | 40 (Low) |
| July | — | — | — | — | — |
| August | — | — | — | — | — |
| September | — | — | — | — | — |
| October | — | — | — | — | — |
| November | — | — | — | — | — |
| December | — | — | — | — | — |