| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 284 (Very high) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) |
| February | 549 (Very high) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) |
| March | 1,197 (Very high) | 0 (Low) | 12 (Low) | 1 (Low) | 0 (Low) |
| April | 167 (High) | 12,465 (Very high) | 23 (Low) | 70 (High) | 6 (Low) |
| May | 9 (Low) | 327 (Very high) | 57 (Medium) | 95 (High) | 114 (Medium) |
| June | 19 (Low) | 6 (Low) | 94 (High) | 39 (Medium) | 744 (Very high) |
| July | 12 (Low) | 12 (Low) | 60 (Medium) | 8 (Low) | 24 (Low) |
| August | 2 (Low) | 5 (Low) | 6 (Low) | 4 (Low) | 4 (Low) |
| September | 2 (Low) | 2 (Low) | 5 (Low) | 2 (Low) | 2 (Low) |
| October | 43 (Medium) | 2 (Low) | 2 (Low) | 1 (Low) | 1 (Low) |
| November | 81 (Medium) | 1 (Low) | 1 (Low) | 0 (Low) | 1 (Low) |
| December | 57 (Medium) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) |