| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 974 (Very high) | 0 (Low) | 13 (Low) | 0 (Low) | 0 (Low) |
| February | 888 (Very high) | 0 (Low) | 18 (Low) | 0 (Low) | 0 (Low) |
| March | 366 (Very high) | 3 (Low) | 11 (Low) | 1 (Low) | 0 (Low) |
| April | 13 (Low) | 977 (Very high) | 15 (Low) | 31 (Medium) | 2 (Low) |
| May | 18 (Low) | 71 (Medium) | 325 (Very high) | 90 (High) | 65 (Medium) |
| June | 94 (High) | 36 (Medium) | 407 (Very high) | 37 (Medium) | 377 (High) |
| July | 78 (Medium) | 4 (Low) | 129 (High) | 8 (Low) | 55 (Medium) |
| August | 2 (Low) | 2 (Low) | 10 (Low) | 2 (Low) | 7 (Low) |
| September | 8 (Low) | 9 (Low) | 9 (Low) | 2 (Low) | 6 (Low) |
| October | 42 (Medium) | 1 (Low) | 3 (Low) | 1 (Low) | 2 (Low) |
| November | 4 (Low) | 3 (Low) | 1 (Low) | 1 (Low) | 1 (Low) |
| December | 27 (Low) | 0 (Low) | 4 (Low) | 2 (Low) | 1 (Low) |