| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 733 (Very high) | 0 (Low) | 4 (Low) | 1 (Low) | 0 (Low) |
| February | 1,475 (Very high) | 0 (Low) | 18 (Low) | 0 (Low) | 0 (Low) |
| March | 165 (High) | 212 (High) | 12 (Low) | 3 (Low) | 0 (Low) |
| April | 55 (Medium) | 13 (Low) | 10 (Low) | 28 (Medium) | 95 (Medium) |
| May | 24 (Low) | 0 (Low) | 100 (High) | 61 (High) | 304 (High) |
| June | 3 (Low) | 0 (Low) | 117 (High) | 79 (High) | 35 (Low) |
| July | 1 (Low) | 0 (Low) | 44 (Medium) | 13 (Low) | 1 (Low) |
| August | 1 (Low) | 0 (Low) | 13 (Low) | 6 (Low) | 1 (Low) |
| September | 3 (Low) | 0 (Low) | 5 (Low) | 3 (Low) | 0 (Low) |
| October | 36 (Medium) | 0 (Low) | 3 (Low) | 1 (Low) | 0 (Low) |
| November | 19 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) |
| December | 13 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |