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Michigan’s dry weather extends pollen allergy season

Growing season extended by nearly 3 weeks

DETROIT – When the weather gets dry like it’s been -- especially this time of year -- ragweed allergies can be horrible.

Ragweed is an annual plant, not a perennial -- meaning it needs to start its growth and lifecycle all over again every spring. It also means its pollination season runs from August through October when the plants have reached maturity -- and the weather during the growing season can significantly affect the pollen released in the fall.

While the recent dry and warm weather conditions have extended the barbecue season, they have also prolonged the pollen season. The lack of precipitation and above-average temperatures have resulted in an extended growing season by about 19 days in many cities, exacerbating pollen issues.

Related: How rain affects your allergy symptoms

Ragweed is the primary cause of fall allergies, although many mistakenly attribute their symptoms to goldenrod. Despite its noticeable golden appearance, goldenrod pollen is heavy, sticky and spread by insects, whereas ragweed pollen is light and airborne.

Those who suffer from allergies are feeling it right now, but there are things that people can do to help.

Keeping windows closed

As tempting as it is to leave windows open at night for some cool fresh air, you’re also letting in pollen -- especially if windows are open first thing in the morning when levels are the highest.

Stay clean

Pollen sticks to hair, clothes and shoes, so changing clothes and showering after coming inside can reduce indoor pollen contamination.

Allergy medication

Regularly take non-sedating antihistamines like Claritin, Zyrtec, or Allegra, and avoid diphenhydramine -- known as Benadryl -- due to its sedative effects.


About the Authors
Frank McGeorge, MD headshot

Dr. McGeorge can be seen on Local 4 News helping Metro Detroiters with health concerns when he isn't helping save lives in the emergency room at Henry Ford Hospital.

Kim Adams headshot

Emmy-award winning Meteorologist Kim Adams rejoined the 4Warn Weather Team in August 2022. You can watch her on the 4, 5, 6, 10 & 11 p.m. newscasts. You can also find her on your cell phone, tablet, computer (by downloading the 4Warn Weather app), Click on Detroit, and Local 4+.

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