Pollen Count in Durham

• Wednesday 😩
  Grass: 793.4 g/m³
  Mugwort: 20.4 g/m³
  
• Thursday 😩
  Grass: 812.3 g/m³
  Mugwort: 18.5 g/m³
  
• Friday 😩
  Grass: 366 g/m³
  Mugwort: 17 g/m³
  
• See our chart for an hourly overview.

• 4-Day Chart
• Annual Overview

Trees release pollen in spring. In Durham, this is usually from late March to early May. This is the main pollen season. Some trees, like oak, release pollen later.

Grasses release pollen in summer. In Durham, this starts around mid-May. It lasts until late July. Some grasses release pollen earlier or later.

Weeds release pollen in late summer. In Durham, this starts in late July. It lasts until early September. Some weeds release pollen earlier or later.

Pollen levels can be high or low. This depends on the weather. A hot, sunny day can make pollen levels rise. A rainy day can make them drop.