Facts, Prevention, and Relief for New Hampshire Allergies in 2024

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New Hampshire is a quaint and beautiful state with many picturesque towns and enjoyable wilderness. Of course, as with many states, this beautiful wilderness comes at a cost for allergy sufferers. New Hampshire isn’t the worst state for allergies by any means, but the plethora of flora does make spring, summer, and fall challenging for seasonal allergies.

Fortunately, winter provides a break, save for the typical indoor allergies like dust mites and mold. But what should New Hampshire residents do to curb their symptoms during allergy season? Is there treatment for your New Hampshire allergies?

If you’re looking for long-term relief from New Hampshire allergies, Wyndly can help. Get your allergy consultation scheduled today, or read on to learn more about New Hampshire allergies and what to expect when allergy season comes around.

When Is New Hampshire Allergy Season?

New Hampshire experiences every season in its entirety, meaning allergy season usually isn’t too surprising. You can expect spring allergies to start around late February or early March. Allergy season will usually end after the first frost of winter, so early November is when you can expect fall allergies to subside.

Allergens by Season

The spring, summer, and fall will bring the worst allergies in New Hampshire. Here is a quick breakdown of New Hampshire allergies by season.


Summer marks the beginning of New Hampshire grass allergy season. The season will usually bleed into the spring tree allergy season by starting in May and will taper off in July. The worst grass allergies are from ryegrass and bent, brome, sweet vernal, fescue, and orchard grasses.


Fall is the weed allergy season for New Hampshire. This season usually begins in August and goes until the first frost. New Hampshire weed allergies include ragweed, amaranth, and wormwood.


New Hampshire allergy sufferers should enjoy a nice break from seasonal allergies in winter. Remember to keep in mind indoor allergies like dust mites, mold, and pet dander, as these will still be prevalent during the winter months.


Spring is tree allergy season for New Hampshire. Trees to watch for include oak, willow, hickory, cedar, ash, walnut, and mulberry. Tree allergy season can start as early as late February and go into the summer months, with pollen peaking in April and May.

Common Allergens

New Hampshire residents will primarily have seasonal allergies to trees, grass, and weeds. Of course, indoor allergies can cause year-round issues, with intensity ramping up in winter when people spend more time at home.

Common Symptoms

New Hampshire residents can expect the following allergy symptoms:

  • Runny nose
  • Coughing
  • Congestion
  • Sneezing
  • Headaches
  • Scratchy throat
  • Itchy eyes
  • Watery eyes
  • Hives
  • Aggravated asthma symptoms

As always, reactions will vary from person to person, but in general, allergies will cause one or more of these symptoms to occur.

Allergens Around the State

New Hampshire allergens can vary based on what part of the state you live in. Let’s take a look at some of the allergens that are specific to New Hampshire’s biggest regions.


New Hampshire residents in the Coos/Grafton/Carroll areas can expect spring allergies to include oak, willow, ash, and maple tree pollen. In summer, grass allergies usually include ryegrass and Bermuda, bent, timothy, sweet vernal, fescue, and orchard grasses. Weed allergies start in fall and include ragweed, wormwood, amaranth, and sagebrush.


In the Sullivan, Merrimack, Belknap, and Strafford areas, the primary spring allergies are from oak, hickory, willow, ash, cedar, and maple pollen. Summer allergies include bent, timothy, orchard, and fescue grass. In fall, weed allergies are from ragweed and mustard.


The Manchester and Concord areas will have spring allergies from oak, hickory, walnut, ash, cedar, and willow tree pollen. In summer, grass allergies arise from ryegrass and bent, timothy, orchard, brome, sweet vernal, and fescue. In fall, allergies are from ragweed, wormwood, and amaranth.


In the Dover, Portsmouth, and Rochester areas, spring allergies can be attributed to oak, hickory, willow, ash, mulberry, maple, and cedar trees. Summer allergies include ryegrass and bent, timothy, brome, orchard, and fescue grasses. In fall, weed allergies include ragweed, oldman, Russian thistle, and wormwood.

Northeast Allergen Zone Map

Testing and Diagnosis

Allergy seasons often bleed into each other, meaning grass allergies may start early one year or tree allergies may go on longer, for example. This can make finding out what you’re allergic to difficult. Even more difficult is finding out what specific tree, grass, or weed species is causing your symptoms. Fortunately, allergy testing is available to clear up these questions. Wyndly makes allergy testing extremely convenient with at-home allergy testing that doesn’t require an uncomfortable skin prick test or a visit to the doctor. Buy your at-home allergy test from Wyndly today.

Let’s look into how different allergy testing options work.

Old-Fashioned Method: Skin Prick Test at Your Doctor’s Office

Skin prick testing requires you to go to the doctor to find out your allergen triggers. It’s often uncomfortable, and it takes time out of your day. You’ll go to the doctor’s office, they’ll administer a test where they prick or scrape your skin with a needle tipped with different allergens, and then they’ll observe the areas they pricked for itchiness, redness, or swelling. All in all, it’s not a pleasant experience. Instead, you can save yourself time and pain by getting an at-home test.

Modern and Efficient At-Home Method

  1. Get Wyndly’s at-home allergy test. We ship our CLIA-certified test straight to your door.
  2. Take the allergy test and send it back to us. Just do a quick finger prick test to provide us with a blood sample and mail it back when you’re done.
  3. Receive your personalized treatment plan. Your Wyndly doctor will interpret your results, create an allergy profile, and walk you through a treatment plan for you.

Treatment and Remedies

If you’re dealing with allergy symptoms, be sure to seek treatments or manage your symptoms so they don’t make you miserable and affect your daily life. Here are some remedies and treatments you may find helpful.

Limiting Exposure

Limiting exposure to your allergen can be a great way to manage your allergy symptoms. Although pollen is very hard to avoid, taking these measures can help.

  • Keep your home clean: One of the best ways to limit exposure is to keep your home environment as pollen-free as possible. This means dusting and vacuuming at least once per week during allergy season. It’s a good idea to install a HEPA filter in your home as well to prevent pollen from circulating in the air.
  • Check the pollen count: It’s a good idea to check the pollen count when you wake up to see if it’s a high pollen day. On days with high pollen levels, you may want to try to stay indoors as much as possible. If you do need to leave the house, try wearing an N95 mask, hat, and sunglasses to reduce your exposure
  • Keep the windows closed: Pollen is light and travels through the air, meaning it can easily get in through open windows. Keep your windows closed during pollen season and run your A/C instead.
  • Wipe pets down when they come inside: Wipe your pets off with a towel when they come inside to get pollen off them so they don’t track it in.
  • Shower frequently: Make sure to rinse off in the shower to get pollen off your skin and hair. At the very least, you should wash your hands and face after you’ve been outside.


Limiting exposure may not provide you with complete relief from symptoms. If you’re looking for more ways to manage your symptoms, over-the-counter allergy medications can be helpful. There is a variety available, including antihistamines, eye drops, nasal sprays, and decongestants. These can all provide short-term relief.

Sublingual Immunotherapy

When you want more than short-term relief, you may want to consider sublingual immunotherapy. Sublingual immunotherapy can often provide lifelong relief from allergy symptoms by retraining your immune system to ignore or tolerate the substances you’re allergic to. Sublingual immunotherapy uses doses administered under the tongue to introduce small amounts of the allergen to your immune system, providing long-term relief over time. Unlike allergy shots, sublingual immunotherapy can be taken at home without painful needles.

Get Long-Term Relief With Wyndly

When you’re tired of dealing with your New Hampshire allergies, Wyndly can help. With Wyndly, you can get a personalized treatment plan designed to address your allergies and treat them at their source.

Schedule an allergy consultation with Wyndly today to get started.

New Hampshire Allergy FAQs

Still have questions about New Hampshire allergies? Here are some common questions and answers to help you out.

How long is New Hampshire’s allergy season?

New Hampshire allergy season is fairly typical, going from early spring to late fall.

Is allergy season bad in New Hampshire?

Allergy season can be bad in New Hampshire during the peak months for grass, tree, and weed allergies.

Is New Hampshire a good state if you have allergies?

New Hampshire ranks near the middle when it comes to the worst allergy states. It’s not the best for allergies, but it’s not the worst either.

When is the New Hampshire allergy season?

New Hampshire allergy season usually starts in late February and ends after the first frost of winter.

What are the worst months?

The worst months are usually April, May, June, and September.

Seasonal Allergies By State

Alabama Allergy Season

Arizona Allergy Season

Arkansas Allergy Season

California Allergy Season

Colorado Allergy Season

Connecticut Allergy Season

Delaware Allergy Season

Florida Allergy Season

Georgia Allergy Season

Idaho Allergy Season

Illinois Allergy Season

Indiana Allergy Season

Iowa Allergy Season

Kansas Allergy Season

Kentucky Allergy Season

Louisiana Allergy Season

Maine Allergy Season

Maryland Allergy Season

Massachusetts Allergy Season

Michigan Allergy Season

Minnesota Allergy Season

Mississippi Allergy Season

Missouri Allergy Season

Montana Allergy Season

Nebraska Allergy Season

Nevada Allergy Season

New Hampshire Allergy Season

New Jersey Allergy Season

New Mexico Allergy Season

New York Allergy Season

North Carolina Allergy Season

North Dakota Allergy Season

Ohio Allergy Season

Oklahoma Allergy Season

Oregon Allergy Season

Pennsylvania Allergy Season

Rhode Island Allergy Season

South Carolina Allergy Season

South Dakota Allergy Season

Tennessee Allergy Season

Texas Allergy Season

Utah Allergy Season

Vermont Allergy Season

Virginia Allergy Season

Washington Allergy Season

West Virginia Allergy Season

Wisconsin Allergy Season

Wyoming Allergy Season

When Do Seasonal Allergies Start and End in Each State?

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