| 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 | 0 (Low) | 0 (Low) | 49 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 203 |
| February | 0 (Low) | 0 (Low) | 58 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 429 |
| March | 5 (Low) | 281 (High) | 10 (Low) | 96 (High) | 0 (Low) | 14 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 22 (Medium) | 1 (Low) | 17 (Medium) | 9 (Low) | 2 (Low) | 24 (Medium) | 3 (Low) | 13 (Low) | 18 (Medium) | 217 |
| April | 10 (Low) | 15 (Low) | 5 (Low) | 23 (Medium) | 3 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 28 (Medium) | 0 (Low) | 9 (Low) | 2 (Low) | 4 (Low) | 77 (High) | 8 (Low) | 1 (Low) | 13 (Low) | 63 |
| May | 25 (Low) | 0 (Low) | 95 (High) | 36 (Medium) | 158 (Medium) | 10 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 10 (Low) | 0 (Low) | 10 (Low) | 0 (Low) | 4 (Low) | 1 (Low) | 24 (Medium) | 2 (Low) | 11 (Low) | 99 (High) | 24 (Medium) | 1 (Low) | 10 (Low) | 82 |
| June | 21 (Low) | 0 (Low) | 64 (Medium) | 32 (Medium) | 119 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 6 (Low) | 9 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 14 (Low) | 0 (Low) | 8 (Low) | 14 (Low) | 25 (Medium) | 0 (Low) | 11 (Low) | 46 |
| July | 1 (Low) | 1 (Low) | 38 (Medium) | 2 (Low) | 8 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 9 (Low) | 11 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 6 (Low) | 3 (Low) | 2 (Low) | 0 (Low) | 7 (Low) | 40 |
| August | 1 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 2 (Low) | 4 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 22 (Medium) | 1 (Low) | 2 (Low) | 0 (Low) | 2 (Low) | 65 |
| September | 2 (Low) | 0 (Low) | 2 (Low) | 2 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 10 (Low) | 2 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 22 (Medium) | 0 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 13 |
| October | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 16 |
| November | 220 (Very high) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 6 (Low) | 6 |
| December | 1,030 (Very high) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 9 |