| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 572 (Very high) | 0 (Low) | 8 (Low) | 1 (Low) | 0 (Low) |
| February | 994 (Very high) | 0 (Low) | 11 (Low) | 1 (Low) | 0 (Low) |
| March | 1,283 (Very high) | 130 (High) | 28 (Low) | 3 (Low) | 0 (Low) |
| April | 17 (Low) | 1,487 (Very high) | 21 (Low) | 27 (Medium) | 8 (Low) |
| May | 24 (Low) | 14 (Low) | 218 (Very high) | 62 (High) | 1,148 (Very high) |
| June | 120 (High) | 0 (Low) | 132 (High) | 28 (Medium) | 159 (Medium) |
| July | 4 (Low) | 0 (Low) | 12 (Low) | 5 (Low) | 2 (Low) |
| August | 4 (Low) | 0 (Low) | 6 (Low) | 3 (Low) | 1 (Low) |
| September | 3 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 0 (Low) |
| October | 29 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) |
| November | 7 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) |
| December | 47 (Medium) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) |