Clime
← Back to Blog
Tips

Understanding Pollen Alerts: Essential Information for Allergy Season

June 17, 2026 · The Clime Team
Understanding Pollen Alerts: Essential Information for Allergy Season

Pollen allergies affect millions of Americans each year, with symptoms ranging from sneezing and runny noses to itchy eyes and congestion. Understanding pollen seasons and staying informed about local pollen levels are crucial steps in managing these allergies.

What Are Pollen Seasons?

Pollen seasons vary across the United States, typically divided into three main periods:

  • Tree Pollen: From February to May, with peak months in March and April. Common culprits include oak, birch, cedar, alder, and maple trees.

  • Grass Pollen: From May to July, with peak months in May and June. Species like Bermuda, Timothy, ryegrass, and bluegrass are prevalent.

  • Weed Pollen: From August to November, with peak months in September and October. Ragweed, mugwort, pigweed, and sagebrush are common sources.

These overlapping seasons mean that individuals may experience allergy symptoms for a significant portion of the year. (mypollenpal.com)

Monitoring Pollen Levels

Staying informed about current pollen levels can help you plan outdoor activities and manage symptoms effectively. Several resources provide real-time pollen counts and forecasts:

  • MyPollenPal: Offers daily pollen counts by ZIP code, allowing users to check current levels for tree, grass, and weed pollen in their area. (mypollenpal.com)

  • AllergyAva: Provides pollen forecasts with allergen breakdowns and 5-day outlooks for over 150 U.S. cities, helping users plan ahead. (allergyava.com)

  • WeatherBug: Delivers real-time pollen and allergy alerts, keeping users updated on local pollen conditions. (weatherbug.com)

Impact of Climate Change on Pollen Seasons

Recent studies indicate that climate change is contributing to longer and more intense pollen seasons. Warmer temperatures and extended freeze-free periods have led to earlier and prolonged pollen seasons in many U.S. cities. For instance, between 1970 and 2024, nearly 90% of 198 U.S. cities experienced longer growing seasons, resulting in earlier and more intense allergy seasons. (axios.com)

How Clime Can Help

Clime offers comprehensive weather and environmental data, including pollen forecasts, to help you stay informed about local pollen levels. By integrating Clime's services, you can receive timely alerts and plan your activities accordingly, minimizing exposure to allergens.

Conclusion

Understanding pollen seasons and monitoring local pollen levels are essential steps in managing allergy symptoms. Utilizing resources like Clime can provide valuable insights and alerts, empowering you to make informed decisions and maintain your well-being throughout the year.

Highlights:

  • Pittsburgh's allergy season is getting longer, Published on Monday, March 16

Frequently Asked Questions