Everything you need to know to manage your allergies in New Hampshire this spring

Flowers with pollens in the air.

Flowers with pollens in the air. (Courtesy Getty Images)

By Mrinali Dhembla

April 30, 2024

Granite Staters, it is that time of year when excess pollen in the air could trigger your allergies. While New Hampshire isn’t the worst state for allergies, here’s what you need to know so you can nip them in the bud.

What causes spring allergies?

While allergies can happen year-round, they typically affect you in the warmer months. In New England, the pollen season commences around April/May—when tree and grass pollen is high—and goes on until September, when weed pollen levels soar. When pollen enters your body, it is identified as a threat, and your body’s response to protect you makes you feel sick.

While allergies can affect anyone, people with existing respiratory conditions are most sensitive.

Wait, but what is pollen?

Pollen is a “coarse powdery substance” that aids plants in their reproductive process. For humans, pollen can be an airborne allergen that can cause symptoms such as runny nose, cough, congestion, sneezing, scratchy throat, watery eyes etc.

How to reduce exposure?

  1. Stay indoors on particularly humid or windy days.
  2. Try to stay indoors during peak pollen times, usually between 5-10 a.m.
  3. Change clothes you’ve worn outside or shower to rinse off pollen from your body.
  4. Keep your windows shut.
  5. Use a dehumidifier to dry the air inside your house.
  6. Consider using a high efficiency particulate air (HEPA) purifier.

What should I do if I ‘have’ to be outdoors?

  1. Check pollen levels and pollen forecasts before leaving home.
  2. Keep your car windows closed while driving.
  3. Consider wearing a face mask.
  4. Wear a hat and sunglasses when you go out.
  5. Carry essential allergy relief medicine with you.


  • Mrinali Dhembla

    Based in Manchester, New Hampshire, Mrinali Dhembla is Granite Post's multimedia reporter. She's previously worked as deputy editor at The Keene Sentinel, and has experience writing for many national and international publications. When not doing journalism, she likes to cook food (and eat it).



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