| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive | Birch | Privet | Alder | Maple | Mugwort | Chestnut | Composites | Hazel | Heather | Eucalyptus | Ash | Mulberry | Elm | Pine | Poplar | Goosefoot/Amaranth | Oak | Sorrel | Willow | Nettle | Other | Unidentified |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| January | 1,979 (Very high) | 0 (Low) | 7 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 14 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 421 (Very high) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 | 0 |
| February | 3,804 (Very high) | 0 (Low) | 10 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 12 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 988 (Very high) | 0 (Low) | 24 (Medium) | 1 (Low) | 1 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 0 | 1 |
| March | 546 (Very high) | 35 (Medium) | 37 (Medium) | 2 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 12 (Low) | 6 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 2 (Low) | 1 (Low) | 1 (Low) | 177 (Very high) | 2 (Low) | 184 (Very high) | 33 (Medium) | 102 (Very high) | 1 (Low) | 139 (Very high) | 2 (Low) | 28 (Medium) | 8 (Low) | 4 | 3 |
| April | 72 (Medium) | 99 (Medium) | 25 (Low) | 29 (Medium) | 13 (Low) | 153 (Very high) | 1 (Low) | 0 (Low) | 238 (Very high) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 14 (Low) | 2 (Low) | 10 (Low) | 18 (Medium) | 0 (Low) | 167 (Very high) | 87 (High) | 2 (Low) | 1,046 (Very high) | 8 (Low) | 18 (Medium) | 3 (Low) | 10 | 4 |
| May | 28 (Low) | 1 (Low) | 95 (High) | 63 (High) | 167 (Medium) | 8 (Low) | 8 (Low) | 1 (Low) | 158 (Very high) | 0 (Low) | 2 (Low) | 4 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 359 (Very high) | 0 (Low) | 4 (Low) | 1,580 (Very high) | 7 (Low) | 3 (Low) | 3 (Low) | 38 | 2 |
| June | 19 (Low) | 1 (Low) | 72 (Medium) | 23 (Medium) | 33 (Low) | 1 (Low) | 16 (Medium) | 0 (Low) | 2 (Low) | 0 (Low) | 57 (High) | 6 (Low) | 0 (Low) | 4 (Low) | 2 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 73 (High) | 0 (Low) | 10 (Low) | 99 (High) | 6 (Low) | 0 (Low) | 2 (Low) | 9 | 2 |
| July | 3 (Low) | 0 (Low) | 15 (Low) | 8 (Low) | 2 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 3 (Low) | 2 (Low) | 0 (Low) | 2 (Low) | 2 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 5 (Low) | 0 (Low) | 6 (Low) | 18 (Medium) | 2 (Low) | 0 (Low) | 3 (Low) | 5 | 4 |
| August | 1 (Low) | 0 (Low) | 24 (Low) | 4 (Low) | 3 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 1 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 17 (Medium) | 11 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 104 | 3 |
| September | 2 (Low) | 0 (Low) | 5 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 10 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 9 (Low) | 10 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 | 0 |
| October | 40 (Medium) | 0 (Low) | 79 (Medium) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 7 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 7 (Low) | 0 (Low) | 2 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 | 1 |
| November | 65 (Medium) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 2 (Low) | 8 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 1 | 2 |
| December | 229 (Very high) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 | 1 |