Pollen Count & Forecast for Crawley

Crawley, Milton Keynes experiences significant spring tree pollen, primarily Birch and Oak from March to May, originating from mature trees within Campbell Park, Ouzel Valley Park, and established residential avenues. Mid-summer, Grass pollen becomes dominant, peaking June through July, primarily from extensive meadows along the River Ouzel, Grand Union Canal towpaths, and unmanaged parklands.

The city’s extensive urban tree canopy and grid-road system can trap and recirculate pollen, exacerbating localised exposure; however, open corridors also facilitate widespread allergen distribution. Autumn introduces elevated mould spore levels, from September onwards, largely due to decomposing leaf litter in wooded areas and damp conditions prevalent across the Ouzel Valley and other green spaces, persisting until winter frosts.