Grass
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Index value 0 of 5.
Saturday 24 October Updated 10:39
Tomorrow stays at this level.
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Index value 0 of 5.
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Yorkshire and the Humber sees the typical UK pollen calendar, with a tree-led spring peak and a grass-led early summer.
Tree pollen here is dominated by oak, birch and ash, with grass led by ryegrass, timothy and cocksfoot and weeds by nettle and mugwort.
Tree pollen typically peaks in April. Grass counts are highest from late May to early July. Follows the typical UK pattern of a tree peak in spring and a long grass season into early summer.
If you're in a specific town or postcode area, pick one from the list below for a more local view.
The pollen season in Yorkshire and the Humber runs from March to October. The worst months are typically April, May, July and August.
| Pollen | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tree pollen | Jan: none | Feb: none | Mar: low | Apr: peak | May: peak | Jun: low | Jul: none | Aug: none | Sep: none | Oct: none | Nov: none | Dec: none |
| Grass pollen | Jan: none | Feb: none | Mar: none | Apr: none | May: low | Jun: active | Jul: peak | Aug: active | Sep: low | Oct: none | Nov: none | Dec: none |
| Weed pollen | Jan: none | Feb: none | Mar: none | Apr: none | May: none | Jun: none | Jul: active | Aug: peak | Sep: active | Oct: low | Nov: none | Dec: none |
See the full UK pollen calendar or read when hay fever season starts and ends.