| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 801 (Very high) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) |
| February | 1,014 (Very high) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) |
| March | 1,006 (Very high) | 13 (Low) | 5 (Low) | 0 (Low) | 0 (Low) |
| April | 210 (Very high) | 228 (High) | 13 (Low) | 10 (Low) | 0 (Low) |
| May | 12 (Low) | 23 (Low) | 70 (Medium) | 29 (Medium) | 16 (Low) |
| June | 62 (Medium) | 8 (Low) | 183 (Very high) | 73 (High) | 204 (High) |
| July | 50 (Medium) | 1 (Low) | 154 (Very high) | 8 (Low) | 30 (Low) |
| August | 4 (Low) | 1 (Low) | 7 (Low) | 2 (Low) | 1 (Low) |
| September | 2 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 1 (Low) |
| October | 8 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |
| November | 4 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |
| December | 20 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) |