Grass
None
Index value 0 of 5.
Saturday 24 October Updated 22:53
No pollen in CH (Chester) today.
Tomorrow stays at this level.
Tree
None
Index value 0 of 5.
Weed
None
Index value 0 of 5.
CH covers part of North West England and follows its regional pollen pattern closely.
Tree pollen here is dominated by silver birch, oak and alder, with grass led by ryegrass and cocksfoot and weeds by nettle.
Tree pollen typically peaks in April. Grass counts are highest from June into early July. Damper conditions can suppress airborne grains, but birch can spike sharply on dry April days.
For the wider regional view see North West England, or browse every area we cover.
Hay fever season in CH (Chester)
The pollen season in CH (Chester) 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 |
- Tree pollen in CH (Chester) runs from March to June. It peaks in April.
- Grass pollen in CH (Chester) runs from May to September. It peaks in July.
- Weed pollen in CH (Chester) runs from July to October. It peaks in August.
See the full UK pollen calendar or read when hay fever season starts and ends.