Pollen Count in Heggedal
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Heggedal is a small town in Norway. Spring arrives in March. Snow melts and trees start growing. This is when pollen season begins.
Updated: 5/21/2026
Trees release pollen into the air. It's like a yellow cloud. People notice it on cars and windows. Pollen counts are high in spring.
Grass and weeds also produce pollen. This happens in late spring and summer. June and July are peak months. Pollen counts can be very high then.
By August, pollen counts decrease. Summer ends and autumn starts. Trees, grass, and weeds stop producing pollen. The air is clearer again.
Pollen Forecast Chart
Recommendations
When pollen concentrations reach a peak, we suggest these simple steps to help with hay fever. These tips are extra important on windy days when plants are in peak anthesis (the time when they release the most pollen).
- Wear masks if necessary
- Shower after going out
- Wear sunglasses if windy
- Close windows and doors
- Use an indoor air purifier
- Avoid wearing woolen clothes outside
- Limit outdoor activities
Annual Pollen Overview
Check out this month-by-month overview of the daily average pollen count in Heggedal 🌾. This data is based on previous years and serves as a guideline to help you understand when different pollen seasons typically occur in your city.
| Alder | Birch | Grass | Mugwort | Olive | Ragweed | |
|---|---|---|---|---|---|---|
| Jan | 0 | 0 | 0 | 0 | 0 | 0 |
| Feb | 0.1 | 0 | 0 | 0 | 0 | 0 |
| Mar | 21.5 | 141.2 | 0 | 0 | 0 | 0 |
| Apr | 2.9 | 5483.1 | 0 | 0 | 0 | 0 |
| May | 0.5 | 693.2 | 4.8 | 0 | 0 | 0 |
| Jun | 0 | 44.4 | 413.5 | 0 | 0 | 0 |
| Jul | 0 | 1.7 | 398.8 | 29.4 | 0 | 0 |
| Aug | 0 | 0 | 21.7 | 26.1 | 0 | 0.6 |
| Sep | 0 | 0 | 0.2 | 0 | 0 | 15.2 |
| Oct | 0 | 0 | 0 | 0 | 0 | 0 |
| Nov | 0 | 0 | 0 | 0 | 0 | 0 |
| Dec | 0 | 0 | 0 | 0 | 0 | 0 |
(21 km)