| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive | Birch | Privet | Alder | Mugwort | Chestnut | Composites | Hazel | Heather | Ash | Mulberry | Elm | Pine | Poplar | Goosefoot/Amaranth | Oak | Sorrel | Willow | Nettle | Unidentified |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| January | 68 (Medium) | 0 (Low) | 9 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 16 (Medium) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 15 (Medium) | 0 (Low) | 15 (Medium) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 3 |
| February | 81 (Medium) | 0 (Low) | 24 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 10 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 1 (Low) | 23 (Medium) | 0 (Low) | 48 (Medium) | 1 (Low) | 43 (Medium) | 0 (Low) | 1 (Low) | 1 (Low) | 1 (Low) | 15 (Medium) | 5 |
| March | 30 (Medium) | 786 (Very high) | 9 (Low) | 1 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 13 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 1 (Low) | 2 (Low) | 14 (Low) | 20 (Medium) | 19 (Medium) | 71 (High) | 1 (Low) | 9 (Low) | 1 (Low) | 7 (Low) | 16 (Medium) | 16 |
| April | 13 (Low) | 69 (Medium) | 11 (Low) | 4 (Low) | 13 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 12 (Low) | 6 (Low) | 0 (Low) | 90 (High) | 0 (Low) | 25 (Medium) | 4 (Low) | 5 (Low) | 206 (Very high) | 2 (Low) | 6 (Low) | 35 (Medium) | 25 |
| May | 4 (Low) | 31 (Medium) | 26 (Low) | 36 (Medium) | 147 (Medium) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 50 (High) | 0 (Low) | 5 (Low) | 291 (Very high) | 12 (Low) | 0 (Low) | 7 (Low) | 38 |
| June | 2 (Low) | 0 (Low) | 41 (Medium) | 12 (Low) | 62 (Medium) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 18 (Medium) | 0 (Low) | 0 (Low) | 8 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 47 (Medium) | 0 (Low) | 11 (Low) | 34 (Medium) | 9 (Low) | 0 (Low) | 10 (Low) | 17 |
| July | 1 (Low) | 0 (Low) | 9 (Low) | 4 (Low) | 2 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 12 (Low) | 3 (Low) | 1 (Low) | 0 (Low) | 4 (Low) | 31 |
| August | 1 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 8 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 31 (Medium) | 2 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 19 |
| September | 1 (Low) | 1 (Low) | 2 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 6 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 11 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 10 |
| October | 9 (Low) | 0 (Low) | 4 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 8 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 5 |
| November | 15 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 21 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 2 |
| December | 6 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 1 |