| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 276 (Very high) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) |
| February | — | — | — | — | — |
| March | 172 (High) | 1,098 (Very high) | 39 (Medium) | 4 (Low) | 3 (Low) |
| April | 41 (Medium) | 1,611 (Very high) | 32 (Medium) | 33 (Medium) | 43 (Low) |
| May | 36 (Medium) | 5 (Low) | 181 (Very high) | 101 (Very high) | 2,124 (Very high) |
| June | 186 (High) | 0 (Low) | 123 (High) | 53 (High) | 166 (Medium) |
| July | 4 (Low) | 0 (Low) | 34 (Medium) | 5 (Low) | 2 (Low) |
| August | 1 (Low) | 1 (Low) | 4 (Low) | 3 (Low) | 0 (Low) |
| September | 1 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 0 (Low) |
| October | — | — | — | — | — |
| November | — | — | — | — | — |
| December | — | — | — | — | — |