| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 853 (Very high) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) |
| February | 234 (Very high) | 1 (Low) | 5 (Low) | 0 (Low) | 0 (Low) |
| March | 78 (Medium) | 230 (High) | 3 (Low) | 1 (Low) | 0 (Low) |
| April | 30 (Medium) | 1,630 (Very high) | 6 (Low) | 24 (Medium) | 4 (Low) |
| May | 15 (Low) | 69 (Medium) | 305 (Very high) | 69 (High) | 293 (High) |
| June | 10 (Low) | 3 (Low) | 290 (Very high) | 36 (Medium) | 355 (High) |
| July | 2 (Low) | 1 (Low) | 20 (Low) | 8 (Low) | 7 (Low) |
| August | 2 (Low) | 1 (Low) | 17 (Low) | 1 (Low) | 6 (Low) |
| September | 2 (Low) | 0 (Low) | 9 (Low) | 1 (Low) | 4 (Low) |
| October | 7 (Low) | 1 (Low) | 4 (Low) | 1 (Low) | 1 (Low) |
| November | 12 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 1 (Low) |
| December | 5 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) |